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Celestial Orreries

—

by

Dale
in

From: Steamforged Foundry

Lore: The lore of Celestial Orreries weaves a tale of wonder and curiosity, reflecting humanity’s eternal fascination with the cosmos. In the world of Saṃsāra, where knowledge and magic intertwine, the Steamforged Foundry sought to bring the heavens closer to mortal minds. Inspired by ancient observatories and the pursuit of celestial understanding, the skilled artisans and astrologers of the foundry embarked on a grand endeavor to craft Celestial Orreries.

The Celestial Orreries are meticulously handcrafted models, carefully depicting the positions of planets, moons, and stars in real-time. Aetherium-infused mechanisms animate the celestial bodies, replicating their orbits and movements with remarkable accuracy. These exquisite orreries not only serve as enchanting decorations in noble estates and scholarly institutions but also become indispensable tools for astronomers and astrologers seeking to unravel the mysteries of the cosmos.

Celestial Orrery:

  • Cost: 1500 gold pieces (GP)
  • Size: Large (Approximately 2.5 feet in diameter)
  • Requirements: Proficiency with artisan’s tools (Tinker’s tools or any relevant craft tools) to interact with the orrery for maintenance or calibration.
  • Tags: Magical, Decorative, Scholarly, Enchanted, Mechanical, Aetherium-Powered, Astronomical Tool, Astrological Aid, Precision Instrument, Luxury Item, Educational, Handcrafted, Predictive

Tier One Stats:

  • Real-Time Representation: The Celestial Orrery accurately depicts the current positions and movements of celestial bodies within the world of Saṃsāra, granting advantage on Intelligence (Astronomy) checks.
  • Astrological Insights: The orrery enables astrologers to make more accurate predictions and interpretations of celestial events. Characters proficient in Astrology gain advantage on Intelligence (Astrology) checks when consulting the orrery for insights.
  • Aetherium Mechanisms: Aetherium-powered mechanisms ensure smooth and precise movements of the celestial bodies within the orrery.
  • Fine Craftsmanship: The intricate design and exquisite craftsmanship of the Celestial Orrery grant advantage on Charisma (Persuasion) checks when attempting to impress individuals who appreciate fine art and scholarly pursuits.

Skills:

  • Arcana: Proficiency in Arcana allows characters to understand the magical properties that imbue the orrery with its abilities, potentially unlocking hidden celestial knowledge.
  • History: Characters proficient in History can recognize and identify the significance of celestial events depicted by the orrery, tying them to historical events or myths.

Where and How It Might Be Sold: Celestial Orreries are considered masterpieces, sold in exclusive establishments such as royal collections, prestigious universities, and prominent observatories. The Steamforged Foundry showcases these orreries in grand exhibitions and attracts the attention of esteemed scholars, nobles, and avid astronomers.

The foundry also entertains private commissions, allowing patrons to request custom Celestial Orreries tailored to specific locations, such as the night skies above their ancestral estates. Each orrery is a limited-edition work of art, making it a highly coveted possession among collectors of unique and rare items.

Environment and Usage: Celestial Orreries find their place in environments where knowledge, elegance, and the wonders of the cosmos are celebrated. In noble estates, these orreries grace luxurious observatories, where lords and ladies indulge in the captivating dance of celestial bodies, engaging in scholarly pursuits and philosophical discussions.

At prestigious universities, Celestial Orreries become central attractions in astronomy departments, inspiring young scholars to pursue the study of the stars and the mysteries of the universe. Professors and students alike benefit from their real-time representations, using the orreries as invaluable educational tools.

For astrologers, the orrery becomes an essential instrument for refining their craft. Consulting the celestial positions within the orrery allows them to make accurate predictions and offer insightful interpretations to those seeking guidance in matters of destiny and fate.

In scholarly institutions and prominent observatories, Celestial Orreries not only facilitate research and academic pursuits but also serve as a source of wonder and inspiration for visitors from all walks of life. As the Steamforged Foundry’s Celestial Orreries continue to kindle the flames of curiosity and discovery, they add a touch of cosmic enchantment to the ever-expanding world of Saṃsāra.

Perception of Activation:

  • User’s Perspective (Interacting with or closely observing the operational Orrery):
    • Sight: The user observes the intricate, smooth, and precise movements of the miniature celestial bodies along their orbital paths. Polished surfaces gleam, reflecting ambient light. Faint luminescence might emanate from Aetherium components or specifically marked stars/planets, creating a mesmerizing, complex visual pattern. Focusing intently might reveal extremely fine details in the craftsmanship or subtle variations in the light.
    • Hearing: A very faint, low-pitched hum or a near-silent, complex whirring emanates from the internal mechanisms, conveying a sense of contained power and precision engineering. Occasional soft clicks might punctuate the otherwise smooth operation as certain components engage or cycles complete. The sound is generally unobtrusive, blending into the background unless specifically listened for.
    • Touch: If touching the frame, the user feels cool, smooth metal, perhaps brass or similar polished material. A very subtle, high-frequency vibration might be felt, indicative of the active mechanisms within. Aetherium components, if accessible, could feel slightly warm to the touch or possess a distinct, faint thrumming sensation. Interacting with any calibration points or focus controls would involve smooth, precise movements of dials or levers.
    • Smell: The immediate vicinity might carry a very faint scent of polished metal and perhaps a clean, slightly sharp smell akin to ozone, potentially associated with the active Aetherium energy. Depending on maintenance, a hint of fine lubricant oil might be detectable up close. The overall olfactory impression is one of cleanliness and precision machinery mixed with subtle magical energy.
    • Taste: Generally not applicable. A user spending extended periods very close might perceive a faint metallic or ozone-like tang in the air, related to the Aetherium emissions.
    • Extra-Sensory: The user experiences a heightened sense of focus when concentrating on the orrery’s display. A feeling of connection to the depicted celestial bodies and their movements arises, facilitating understanding. Those proficient in relevant skills (Astronomy, Astrology, Arcana) perceive a flow of complex data or insight, making calculations or interpretations feel more intuitive and clear. A sense of underlying magical energy, structured and controlled by the Aetherium mechanisms, is palpable. There’s a distinct impression of order, predictability, and cosmic scale.
    • Positives: Provides clarity and deepens understanding of celestial mechanics and potentially fate. The rhythmic, precise movements can be calming or mesmerizing, aiding concentration. Successfully using it grants advantages and potentially unlocks hidden knowledge. The sheer aesthetic beauty and craftsmanship bring intellectual and visual pleasure. It can be used to effectively persuade or impress those who value knowledge and art.
    • Negatives: Focusing intensely can lead to distraction from immediate physical surroundings. The complexity of the information presented could potentially feel overwhelming if the user is unprepared or attempts to grasp too much at once. Requires specific proficiency (Artisan’s Tools) for proper interaction and maintenance. The constant subtle energy signature might be tiring over extremely long periods of close exposure for sensitive individuals.
  • Observer’s Perspective (Viewing the operational Orrery from a short distance):
    • Sight: The observer witnesses a beautiful, large, intricate device with numerous small parts moving in complex, harmonious patterns. Miniature planets and stars glide smoothly through simulated space. Light reflects off its surfaces, and subtle glows might be visible from its core or specific components, hinting at its magical nature. It appears as a sophisticated piece of art combined with a scientific instrument.
    • Hearing: From a distance, the orrery is likely perceived as silent. Only by approaching very closely might an observer with keen hearing detect the faint hum or whirring noted by the user. It does not intrude upon conversations or the general ambiance of a room.
    • Touch: Not applicable from a typical observer’s distance. Visually, it appears solid, metallic, and potentially cool to the touch.
    • Smell: Unlikely to be detected from a distance unless the Aetherium component produces a particularly strong scent, which is not indicated. The observer primarily perceives the ambient smell of the room.
    • Taste: Not applicable.
    • Extra-Sensory: An observer sensitive to magic would detect a moderate aura of enchantment, likely perceived as intricate, ordered, and related to divination or transmutation (due to the moving parts and predictive/representational nature). A general sense of wonder, intellectual curiosity, or awe might be evoked. The object radiates an aura of importance, expense, and precision. It feels like a focal point of knowledge or power within the space it occupies.
    • Positives: The device is visually stunning and intellectually stimulating, inspiring awe and curiosity about the cosmos and the skill involved in its creation. It clearly signals the owner’s wealth, status, and dedication to scholarly or arcane pursuits. It can serve as an impressive centerpiece or conversation starter.
    • Negatives: Its obvious value and complexity might inspire envy or feelings of intellectual inadequacy in some observers. Its presence might be subtly intimidating, emphasizing the gap between the observer and the owner’s resources or knowledge. For those unfamiliar with its function, it could simply appear as an overly elaborate, expensive curiosity.

Crafting Recipe: Celestial Orrery

  • Materials Needed:
    • High-Quality Metal Ingots (e.g., 20 lbs Brass or Bronze; alternatives like Star Metal or Mithral for superior versions) – For frame and primary structure.
    • Precision Gear & Linkage Set (Hardened Steel or specialized Clockwork Alloy, 1 comprehensive set) – For internal mechanisms.
    • Assorted Polished Gemstones or Enchanted Glass Orbs (e.g., 1 large Sunstone or Topaz, 8-12 smaller Moonstones, Sapphires, Emeralds, Rubies, Obsidian spheres, etc., corresponding to known celestial bodies) – To represent sun, planets, moons.
    • Fine Silver or Gold Wire (50 feet) – For orbital paths or fine connections.
    • Refined Aetherium Crystal (1, high clarity, fist-sized) or Aetherium Conduits (3 units) – As the power source.
    • Powdered Star Sapphire (5 grams) – Reagent for accuracy enchantment.
    • Quicksilver (1 fluid ounce) – Reagent for smooth motion enchantment.
    • Vial of Concentrated Starlight (1 dose) – Reagent for astrological insight infusion.
    • Fine Polishing Compound (1 block).
    • Optional: Gold Leaf (1 book), Vitreous Enamels (assorted colors, 5 grams total) – For decoration.
  • Tools Required:
    • Masterwork Tinker’s Tools.
    • Masterwork Jeweler’s Tools.
    • Masterwork Engraver’s Tools (Optional, for detailed markings).
    • Access to a Forge and Metalworking Tools (Anvil, Hammers, Tongs, Files).
    • Precision Measurement Instruments (Magically-assisted Calipers, Micrometer).
    • Aetherium Manipulation Kit.
    • Arcane Focus or Enchanting Lectern.
    • Celestial Alignment Jig (Specialized tool for calibration).
  • Skill Requirements:
    • Mastery (Expert Proficiency or equivalent) with Tinker’s Tools.
    • Proficiency with Jeweler’s Tools.
    • Proficiency in Arcana skill.
    • Proficiency in Astronomy skill (or access to detailed, accurate star charts).
    • Proficiency in Metalworking/Smithing (if forging parts from ingots).
    • Ability to perform Enchanting rituals.
  • Crafting Steps:
    • Design & Blueprinting: Based on precise Astronomical knowledge or charts of the Saṃsāra system, meticulously design the orrery’s scale, gear ratios, and component layout. Draft detailed blueprints. This step requires significant time for calculation and ensuring celestial accuracy.
    • Frame Fabrication: Using the forge and metalworking tools, shape the primary metal ingots into the orrery’s base, support arms, and structural rings according to the blueprints. Ensure structural integrity and precise measurements for later assembly.
    • Mechanism Crafting: Employ Masterwork Tinker’s Tools to fabricate the intricate gears, axles, bearings, and linkages from the specialized alloys or hardened steel. Extreme precision is required for smooth, long-lasting operation.
    • Celestial Body Preparation: Utilize Jeweler’s Tools to shape, polish, and set the chosen gemstones or enchanted glass orbs. If using metal spheres, shape and polish them. Engrave any necessary astronomical symbols using Engraver’s tools if desired.
    • Component Assembly: Carefully assemble the structural frame. Begin the painstaking process of integrating the gears and mechanisms, ensuring correct alignment and interaction. Attach the celestial bodies to their respective arms or movement tracks using fine wire or custom fittings.
    • Aetherium Core Integration: Using the Aetherium Manipulation Kit and Arcana knowledge, safely prepare and install the refined Aetherium crystal or conduits into the designated power core housing within the orrery structure. Establish the energy flow pathways to the primary drive mechanisms.
    • Enchantment & Infusion: At an Enchanting Lectern or using an Arcane Focus, perform the necessary rituals. Channel magical energy, using the Powdered Star Sapphire and Quicksilver, into the mechanisms to enhance their precision and ensure smooth, perpetual motion mirroring real-time celestial movements. Infuse the Vial of Concentrated Starlight into the Aetherium core or specific sensory components to grant the astrological insight properties and advantage on relevant knowledge checks. This step requires significant magical energy and concentration.
    • Calibration & Synchronization: Activate the orrery. Using the Celestial Alignment Jig, Tinker’s Tools, and real-time Astronomical data, perform minute adjustments to synchronize the model’s movements perfectly with the actual positions and speeds of Saṃsāra’s celestial bodies. This may take considerable time and repeated checks.
    • Finishing: Apply fine polishing compounds to all visible metal surfaces for a brilliant shine. Optionally, add decorative touches like gold leaf inlay or enamel accents using Jeweler’s or Engraver’s tools. Conduct a final operational check.

Account of the Sky-Turning Wheel

It is told, from a past age shrouded in mist, that the peoples dwelling upon the land raised their eyes often to the great dark mantle above, where the night-fires burned. Much deep thought occurred within their heads concerning the nature and the travel of these lights. In that time, there existed a certain place of making, its given name like unto a Foundry Where Steam is Forged. Inside this place resided persons possessing much hand-skill, and also persons known as star-readers, who held knowledge of the celestial paths.

A strong desire grew within these persons. They held council and spoke thus: The sky-dance is great and far. Let us endeavor to make a small sky-dance, one that can be held within walls, for easier seeing and knowing.

So, great labor commenced. Metals of quality were brought and worked with hammer and heat. Small wheels within wheels, like the teeth of a great beast but most fine, were cut and fitted. Shining stones and orbs of glass, colored like the far wanderers, were carefully shaped to be their images. Into the heart of the machine, they placed the bright power-stone, the Aetherium, which is like captured sky-breath, to impart the turning force.

And behold, the Wheel began its turning. It showed the path of the great Day-Star, the path of the Night-Eye, and the slow drift of the Distant Fires, all in their proper order and time. It was a true picture of the great sky, made small and brought low into the houses of people.

Those called wise, the star-knowers who measured the heavens, and the fate-speakers who read the future signs, they did make much use of this Sky-Turning Wheel. It aided them in pulling forth the high secrets written in the stars. Also, persons who held much land and counted many coins, they sought these Wheels. They placed them within their grand halls, partly to show their great knowing to others, and partly to cause visitors to feel much wonder.

The making-knowledge of the Sky-Turning Wheel spread, and more were built by those few with the necessary high skill. Yet, each remained a work of much difficulty, requiring rare materials and long hours. They were not things found in every place. The great sky itself remained, vast and full of deep secrets beyond the Wheel’s showing. The small Wheel was a guide, a reflection, but the true sky remained above, unchanged.

Moral of the story: The picture of the truth is valuable for study, but the greater truth itself demands your own looking.

Suggested conversions to other systems:

Call of Cthulhu (7th Edition)

  • High-Level Overview: This Orrery would be an exceedingly rare and valuable artifact, perhaps originating from a forgotten civilization or constructed through forbidden knowledge. Its Aetherium power source might be replaced by strange energies or Mythos technology. Its unnerving accuracy could hint at cosmic truths man was not meant to know, potentially impacting investigators’ Sanity. It serves as a potent tool for research into celestial events and occult timing but carries inherent risks.
  • Game Mechanics:
    • Item: Celestial Orrery of Forgotten Skies
    • Description: A large, intricate device of brass, crystal, and unknown metals, approximately 2.5 feet across. Internal mechanisms, possibly powered by captured electrical elementals or contained Mythos energies, drive miniature celestial bodies in disturbingly accurate real-time motion. Its construction suggests non-human or ancient human craftsmanship. Requires a dedicated power source or periodic ritual maintenance.
    • Astronomy: Grants one Bonus Die to Astronomy skill rolls made while consulting the device for conventional celestial observation or navigation.
    • Occult Insight: Grants one Bonus Die to Occult skill rolls specifically related to astrological predictions, identifying auspicious or baneful celestial alignments for rituals, or understanding cosmic cycles relevant to Mythos entities.
    • Historical Research: Studying past configurations depicted by the Orrery grants one Bonus Die to History or Archaeology rolls concerning events potentially influenced by those celestial alignments.
    • Cosmic Understanding & Risk: Attempting to use the Orrery to comprehend truly alien skies, cycles beyond human understanding, or the positions of non-Euclidean entities requires a Cthulhu Mythos skill roll.
      • Critical Success: Gain profound insight (+1d10 Cthulhu Mythos points) but recognize a terrifying cosmic pattern (Cost: 1/1d4+1 Sanity points).
      • Success: Gain some understanding (+1d6 Cthulhu Mythos points) but glimpse unsettling truths (Cost: 0/1d3 Sanity points).
      • Failure: The patterns remain maddeningly incomprehensible (Cost: 1/1d4 Sanity points).
      • Fumble: The Orrery displays something catastrophic or attracts unwanted attention, potentially damaging the device or the investigator’s mind (Cost: 1d4/1d8 Sanity points).
    • Social Influence: Grants one Bonus Die to Charm or Persuade rolls when attempting to impress academics, antiquarians, or members of certain secret societies. May grant one Penalty Die if shown to staunchly religious figures or those fearful of cosmic revelations.
    • Maintenance: Requires a successful Hard (or Extreme, depending on origin) Mechanical Repair or Electrical Repair roll monthly to maintain function and accuracy. Failure may cause it to display false information or dangerous celestial configurations.
    • Cost/Availability: Extremely high (major purchase, e.g., 50,000+ in modern value), likely unique or one of very few. Found only through dangerous expeditions, inheritances, or from eccentric collectors.

Blades in the Dark

  • High-Level Overview: In Duskvol, this would be a sophisticated Spark-Craft device, perhaps termed a Ghost-Field Orrery or Electroplasmic Astrolabe. Powered by refined leviathan blood distillates or perhaps even bound spirits, it would be found in places of significant power and wealth – the Sparkwrights’ Guild, a Tier IV noble’s private study, the archives of a forgotten cult, or perhaps dimly glowing in a haunted observatory. It’s a source of valuable esoteric knowledge, useful for planning scores based on arcane timing or navigating the ghost field, but interacting with it is likely risky and draws attention.
  • Item Profile:
    • Name: Spark-Craft Orrery (or Ghost-Field Astrolabe)
    • Tier: III or IV Artifact
    • Qualities: Fine, Complex, Esoteric, Volatile, Powered (Electroplasm/Spirit-Engine)
    • Description: A large, freestanding apparatus of polished metal, intricate clockwork, glowing vacuum tubes, and lenses filled with swirling electroplasm or captured spectral light. Miniature celestial bodies drift through a projected field, mimicking Duskvol’s strange sky and perhaps even incursions from the ghost field. It emits a low hum and requires a stable connection to an electroplasmic grid or periodic infusion of potent essences.
  • Game Mechanics:
    • Gather Information: When Gathering Information for a score where celestial timing, arcane alignments, or navigating by strange stars is crucial, consulting the Orrery grants +1 Effect level to the action roll.
    • Long-Term Project: Using the Orrery provides Potency (+1d) for relevant long-term projects undertaken via Study or Research downtime activities. Examples: “Decode the Doomsday Calendar,” “Predict the next Ghost Tide,” “Map the Serpent Star’s Path.”
    • Acquire Asset: Obtaining the Orrery as a crew asset would be a significant score or long-term project itself. If acquired, it might provide +1d to the crew’s Tier rolls when dealing with factions interested in arcane lore or weird tech, or unlock special crew upgrades related to esoteric knowledge.
    • Crafting: Requires a rare Schematic (Tier III+), Fine Spark-Craft Tools, access to a high-end workshop, and rare components (e.g., Ghost-Lens, Resonating Crystal, Processed Leviathan Blood). Crafting it involves a complex downtime activity clock, likely generating significant Heat and Coin cost.
    • Complications: Operating the Orrery can be risky. Examples: Attracts ambient spirits or spectral predators (Entanglement). Its power source surges, causing electroplasmic discharge (suffer Harm). Reveals a disturbing prophecy related to the crew (suffer Stress). Alerts rivals or the Bluecoats to your arcane dabblings (tick a relevant clock, gain Heat). Requires costly or dangerous maintenance (consumes Coin or demands a risky action). Its size makes relocation extremely difficult.

Dungeons & Dragons (5th Edition)

  • High-Level Overview: This Celestial Orrery fits perfectly as a Rare wondrous item. It’s a blend of masterful craftsmanship and enchantment, likely created by gnomes, high elves, or a specialized magewright’s guild (like the original Steamforged Foundry concept). It would be found in centers of learning, observatories, the homes of wealthy patrons of the arts and sciences, or perhaps guarding a location tied to celestial events. Attunement requires a degree of technical or arcane skill.
  • Stat Block and Mechanics:
    • Celestial Orrery Wondrous item, rare (requires attunement by a creature proficient with Tinker’s Tools or the Arcana skill) This device is a complex, freestanding mechanical model of the planes and celestial bodies relevant to the campaign’s cosmology, typically crafted from brass, mithral, and gemstones, standing about 2.5 feet tall and wide. Intricate clockwork powered by ambient magic or an internal arcane matrix causes the model spheres to orbit and rotate with precision. While you are attuned to this Orrery and within 5 feet of it, you gain the following benefits:
    • Cosmic Concordance: You have advantage on Intelligence (Arcana) checks related to astronomy, the workings of the planes, or identifying celestial phenomena. You also have advantage on Intelligence (History) checks specifically regarding historical events tied to recorded celestial alignments (e.g., eclipses, comets, planetary conjunctions).
    • Precognitive Glimpse: After spending at least 10 minutes observing the Orrery’s movements, you can choose to gain a glimpse of cosmic fortune. Once per day after doing so, you can give yourself advantage on one attack roll, saving throw, or ability check you make. You must decide to use this feature before making the roll. This benefit lasts until you finish your next long rest or use this feature again.
    • Scholarly Authority: The Orrery’s intricate beauty and clear function lend you an air of learned authority. You have advantage on Charisma (Persuasion) checks made when interacting with individuals who highly value knowledge, intricate craftsmanship, or celestial lore (such as sages, certain nobles, guild artisans, or priests of knowledge/cosmos deities).
    • Maintenance: The Orrery requires careful calibration. You must spend 1 hour using Tinker’s Tools and succeed on a DC 13 Intelligence (Tinker’s Tools) check once per tenday to maintain its function. If neglected, its magical benefits cease until it is successfully maintained.
  • Value: Approximately 1,500 gp.

Knave (Assumed 2nd Edition Context)

  • High-Level Overview: In Knave, items are tools with direct effects, and inventory is key. The Orrery is far too large for a character’s inventory slots and functions as a significant environmental object or piece of ‘dungeon dressing’ that provides benefits upon interaction. Its value lies in the knowledge and temporary boons it grants. Aetherium is simply ‘magic’.
  • Item Description and Mechanics:
    • Item: Celestial Orrery
    • Slots: 0 (Environmental Object – occupies significant room space, cannot be carried by a PC)
    • Description: A large, beautifully complex clockwork model (approx. 3 ft. diameter) of the known celestial bodies, crafted from polished brass and set with various gems. It hums faintly with internal magic, causing the spheres to slowly rotate and orbit. Typically found bolted to the floor in observatories, wizard studies, or royal map rooms.
    • Effects (When Studied): A character who spends one full Watch (roughly 1 hour) carefully observing and interacting with the Orrery gains the following effects, which last until the next sunrise:
      • Celestial Ward: Gain a +2 bonus to Intelligence saving throws made against effects related to divination, cosmic forces, or illusions that mimic the sky.
      • Learned Discourse: Gain a +2 bonus to Charisma ability checks made to persuade or impress academics, astronomers, astrologers, or nobles interested in science and art.
      • Focused Inquiry: Once during the effect’s duration, the character may ask the referee a single, specific question about predictable celestial mechanics relevant to the current situation (e.g., “What phase will the moon be in three nights?”, “Which constellations are currently highest in the sky?”, “Is the ‘Warlock’s Comet’ currently visible from this location?”). The referee provides a concise, truthful answer based on the established game world cosmology.
    • Maintenance: The Orrery requires calibration. Once per week, someone must succeed on an Intelligence check (DC 14) using Tinker’s Tools (if available, granting advantage or a lower DC at referee discretion) while spending one Watch working on it. If maintenance is missed or the check fails, the Orrery’s effects cannot be gained until it is successfully maintained.
  • Value: Represents significant wealth or institutional investment (e.g., 1500 gp equivalent, likely requiring transport by wagon or specialized crew if moved).

Fate (Core/Condensed)

  • High-Level Overview: Within Fate, the Celestial Orrery functions less as a discrete item with stats and more as a narrative element that influences the story through Aspects, permissions, and justifications for Stunts. It represents a significant investment of resources or knowledge, likely tied to a specific location or organization. Its presence shapes the possibilities within a scene or campaign. Aetherium’s nature (magic, tech, etc.) depends entirely on the setting’s established truths.
  • Representation and Mechanics: The Orrery is best represented through Aspects and Stunts:
    • As a Location Aspect: A place housing the Orrery might possess an Aspect like Intricate Celestial Orrery or Steamforged Predictive Engine.
      • Invoking: Players (or the GM) can spend a Fate Point to invoke this Aspect for a +2 bonus or a reroll on relevant actions. Examples: Using Lore to research ancient astronomical events, using Crafts to understand complex mechanisms, using Notice to spot subtle timing patterns, using Rapport or Provoke to impress or intimidate academics/nobles by showcasing the device.
      • Compelling: The GM can compel this Aspect to introduce complications. Examples: “The Intricate Celestial Orrery predicts a disastrous alignment for your planned heist, forcing a change of plans or increased risk.” or “Because of the Steamforged Predictive Engine’s value, thieves are targeting your workshop, drawing unwanted attention.” Accepting the compel grants the player a Fate Point.
    • As a Supporting Aspect for Characters: A character might have an Aspect like Keeper of the Grand Orrery or Steamforged Foundry Trained. This justifies certain actions and can be invoked or compelled similarly, focusing on the character’s relationship with such devices.
  • As Justification for Stunts:
    • Orrery-Aided Calculation: Requires access to a functional Celestial Orrery. Gain a +2 bonus when you use the Lore skill to Create an Advantage related to predicting future events based on celestial movements or complex cyclical patterns.
    • Steamforged Artisan: Because you understand the principles behind devices like the Celestial Orrery, gain a +2 bonus when using the Crafts skill to Overcome obstacles related to repairing or analyzing complex clockwork or magically-powered machinery.
    • Cosmic Insight: Requires access to a functional Celestial Orrery. Once per session, spend a Fate Point to declare a minor celestial prediction relevant to the current situation (e.g., “The stars favor stealth tonight,” “A temporal distortion is imminent”). This introduces a relevant Situation Aspect with one free invocation for you.

Numenera / Cypher System

  • High-Level Overview: The Celestial Orrery is readily interpreted as a piece of the numenera – specifically, a complex Artifact. It’s a remnant of a prior world (or multiple worlds), its “Aetherium” power source being misunderstood energy, exotic matter, or intricate nano-machinery. Its function is advanced technology mimicking or exceeding magical divination. Interaction carries the typical Numenera risks of depletion or unintended consequences.
  • Artifact Profile:
    • Name: Chrono-Spatial Orrery (or Phase Constellation Projector)
    • Level: 6 (Acts as level 6 for understanding its function, repair attempts, or resisting attempts to disable it)
    • Form: A large, freestanding installation (approx. 2m diameter) composed of interlocking rings of synth, crystal emitters, and shimmering force fields. Displays points of light mimicking stars and planets, possibly including phenomena not visible to the naked eye or from different dimensions/times. Hums with contained energy.
    • Effect: Provides detailed insight into spatio-temporal mechanics and celestial patterns. Activating and studying it for 10 minutes allows the user to initiate one of the following Intellect-based actions:
      • Predict Local Celestial Event (Level 4 task): Grants precise information about upcoming astronomical events (eclipses, conjunctions, orbital paths of specific objects) within the Ninth World’s immediate vicinity.
      • Analyze Spatio-Temporal Flux (Level 6 task): Provides a clue about the nature, origin, or timing of a nearby dimensional instability, temporal distortion, or reality ripple, potentially easing by one step the next task undertaken to navigate or counter the phenomenon. GM determines applicability.
      • Demonstrate Esoteric Knowledge (Level 5 task): Successfully manipulating or explaining the Orrery grants the user an asset on social interaction tasks (persuasion, deception, intimidation) targeting individuals or entities impressed by complex numenera or deep knowledge for the next hour.
    • Depletion: 1-3 on d% (Check after each use of the Predict or Analyze functions. If depleted, the device ceases function, likely requiring specific parts from a level 6+ source or complex repair tasks guided by Numeneraology skill). Alternatively, for simpler tracking: Depletion: 1 on d6.

Pathfinder (2nd Edition)

  • High-Level Overview: This item functions as a rare magical device, likely found in established centers of magical learning, astrological societies, or the vaults of powerful entities interested in divination or cosmic balance. It requires dedicated space and offers benefits through focused interaction, rewarding investment in specific knowledge skills. Its “Aetherium” power is treated as standard arcane energy.
  • Item Stat Block:
    • CELESTIAL ORRERY ITEM 7 RARE, DIVINATION, MAGICAL, MECHANICAL Price 350 gp Usage installed environmental object
    • Bulk — (immobile installation) This intricate device, often crafted from brass, orichalcum, and magically resonant crystals, models the movements of celestial bodies relevant to Golarion or a specific solar system. It stands several feet high and wide, requiring its own chamber. While appearing clockwork, its motive force is purely magical, requiring no winding. Activate [Activity – Two Actions] Interact
    • Frequency once per hour
      • Effect You focus on the Orrery’s movements. Gain a +1 item bonus to your next skill check to Recall Knowledge, provided the check uses Arcana, Astrology (often Lore), Astronomy (often Lore or Survival), or planar Lore, and is made within the next minute.
    • Activate [Activity – Ten Minutes] Interact (Arcana, Concentrate)
      • Frequency once per day; Requirements Expert proficiency in Arcana or a relevant Lore skill (Astrology, Astronomy)
      • Effect You analyze the Orrery’s patterns to glean insights into cosmic flows. For the next 24 hours, you gain a +1 status bonus to Perception checks for initiative. Additionally, once during this duration, you can choose to gain a +1 status bonus to a single saving throw against a divination effect; you must choose to apply this bonus before rolling the save.
    • Passive Scholarly Aid: Any creature Trained in Arcana or a relevant Lore skill (Astrology, Astronomy) gains a +1 item bonus to checks made to Recall Knowledge using that skill while they are within 10 feet of the operational Orrery.
    • Impressive Display: If used as part of a social demonstration, the Orrery grants a +1 item bonus to Diplomacy checks made to Make an Impression on creatures with the Scholar trait or those known to value intricate magic or science. Note: Higher-level versions exist (e.g., Item 14, Price 4,000 gp) potentially offering larger bonuses, additional activated abilities (like scrying adjuncts or planar forecasts), or requiring Master/Legendary proficiency.

Savage Worlds (Adventure Edition – SWADE)

  • High-Level Overview: The Celestial Orrery is a significant piece of Gear, bordering on a vehicle or structure in terms of size and immobility. It’s extremely rare and expensive, likely a plot device, objective, or feature of a major location rather than standard player equipment. Its benefits are direct and impactful, often providing Bennies or improving rolls related to knowledge and prediction. Its power source adapts to the setting (magic, weird science, etc.).
  • Gear Profile:
    • Item: Celestial Orrery
    • Description: An impressive, room-filling (Size 4+) mechanical model of the cosmos, built with fine metals and glowing components. Its operation might be magical, highly advanced clockwork, or powered by weird science (requiring connection to a generator or periodic refueling/recharging).
    • Rarity: Very Rare (+4)
    • Cost: $75,000+ (or equivalent significant favor/quest reward)
    • Weight: Immobile (requires disassembly/reassembly by experts to move)
    • Effects (Requires Access and Interaction):
      • Deep Research: Provides a +2 bonus to Research rolls and relevant Knowledge skill rolls (like Astronomy, Astrology, Occult, Science, specific Lores) when the research directly involves celestial mechanics, long-term cycles, or cosmic influences, and the character spends at least 30 minutes using the Orrery.
      • Favorable Foresight: Once per game session, a character spending 1 hour studying the Orrery’s patterns can make a Smarts roll or appropriate Knowledge/Arcane skill roll (GM’s call based on setting and intent) versus a Target Number 4. On a success, they gain one Benny derived from cosmic insight. On a raise, they gain the Benny and may also reroll a failed non-combat Trait roll made later in the session, representing acting at an opportune moment.
      • Scholarly Impression: When used as a centerpiece for discussion or demonstration, grants a +1 bonus (+2 on a raise for a relevant skill check like Performance or Knowledge to explain it) to initial social checks (Persuasion, Intimidation if implying predictive power) against NPCs likely to be impressed by advanced knowledge, intricate devices, or displays of wealth/power.
    • Maintenance/Power (Setting Dependent): May require periodic Repair rolls (TN 4, potentially with penalties for complexity) to maintain function. If Weird Science, might require Power Points to operate or have a chance of Technical Difficulty on a Critical Failure during use. If Magical, might require an Arcane skill roll or specific ritual to activate/maintain. Failure renders it non-functional until successfully repaired/recharged.

Shadowrun (6th World / 6e)

  • High-Level Overview: In the tech-saturated, magic-infused Sixth World, a physical Orrery is a rare, possibly priceless antique or a bespoke magical lodge focus. More commonly, its function would be replicated by sophisticated Matrix software running simulations based on astronomical data cross-referenced with mana levels and astral phenomena. Access would be restricted and expensive. “Aetherium” could represent Orichalcum components, a sophisticated power source drawing on background count, or even a Resonance-based system for Technomancer variants.
  • Representation and Mechanics:
    • Option 1: Matrix Software/Host Analysis Suite
      • Program/Data Suite: Orrery Predictive Modeler (Rating 5)
      • Availability: 16R
      • Cost: 120,000 Nuyen
      • Requirements: Access via high-end Cyberdeck (Device Rating 5+) or direct connection to a Host running the software.
      • Matrix Effects: Grants Edge Boost (1 Edge) on Logic + Electronics tests for analyzing satellite data, calculating orbital mechanics, or navigating complex sensor nets in space/orbit. Provides Edge Boost (1 Edge) on Logic + Computer tests for data analysis related to large-scale timing patterns or predictive algorithms based on celestial cycles (e.g., predicting data haven activity tied to satellite passes).
      • Astral/Magic Effects (Requires AR/VR Interface or Lodge Integration): Grants Edge Boost (1 Edge) on Intuition + Arcana or Logic + Spellcasting (Ritual Specialization) tests related to astrological timing, assessing mana ebb/flow tied to celestial alignments, or researching astral phenomena correlated with planetary positions.
      • Social Effects: Demonstrating mastery of this software grants Edge Boost (1 Edge) on Charisma + Negotiation tests when dealing with entities interested in deep astrological knowledge, long-term prediction, or cosmic awareness (e.g., certain spirits, dragons, specialized scholars).
    • Option 2: Physical Artifact
      • Gear: Grand Celestial Orrery (Antique or Magically Active)
      • Availability: 20F (Unique or nearly so)
      • Cost: 1,000,000+ Nuyen (Collector’s price)
      • Description: A large, intricate clockwork and crystal device, possibly incorporating Orichalcum and sensitive mana sensors. Requires a dedicated, secure space. Often functions as a powerful Magical Lodge component (Rating 4-5).
      • Effects: Grants Edge Boost (1 Edge) on relevant Knowledge Skill tests (Astronomy, Astrology, Magical Theory, Advanced Mechanics). Acts as a focus for Ritual Spellcasting, granting Edge Boost (1 Edge) on the teamwork test or primary caster’s roll if celestial timing is a major component. Grants +2 dice pool bonus to Etiquette or Negotiation tests when the Orrery itself is used as a subject or display to impress specific targets (dragons, immortal elves, high-level magical academics). Requires periodic maintenance involving Mechanics + Logic [Mental] (Threshold 4+) tests.

Starfinder

  • High-Level Overview: Starfinder readily accommodates the Celestial Orrery as either advanced technology, potent magic, or a hybrid. It could be a standard piece of equipment in observatories, on bridge command decks of large vessels, within temples dedicated to cosmic deities (like Triune or Nyarlathotep in darker campaigns), or as discovered alien tech. Its function can range from precise scientific modeling to divining planar influences or navigating Drift pathways.
  • Representation and Mechanics:
    • Option 1: Technological Item
      • Holographic Orrery System Level 11
      • Price 25,000 credits; Bulk 3 (projector and control console)
      • Capacity 80 charges; Usage 4 charges/hour
      • Description: This system projects a detailed, interactive holographic display of a star system, sector, or even theoretical planar conjunctions based on sensor data and known astronomical constants. Interfaces with standard ship or settlement computer systems.
      • Effects: Grants a +3 insight bonus on Physical Science checks related to astronomy, astrophysics, or orbital mechanics within the displayed region. Grants a +2 insight bonus on Computers checks made to analyze complex sensor data related to celestial phenomena or run predictive simulations (e.g., asteroid collision vectors, Drift beacon timing). When interfaced with a starship’s navigation computer, provides a +1 circumstance bonus on Piloting checks specifically for Drift jumps or navigating hazardous stellar phenomena.
    • Option 2: Hybrid Item
      • Aetheric Planar Orrery Level 14
      • Price 70,000 credits; Bulk L (Large installation, typically fills a small room)
      • Description: A fusion of arcane crystals, rune-etched metals, and precision machinery. It models not just physical celestial bodies but also their connections to other planes and flows of magical energy. Powered by bound energies or a direct planar tap.
      • Effects: Provides the benefits of the Holographic Orrery System above (insight bonuses on Physical Science and Computers checks). Additionally, grants a +3 insight bonus on Mysticism checks related to understanding planar conjunctions, cosmic prophecies, or the influence of extraplanar beings tied to celestial bodies. Once per day, after 10 minutes of focused interaction (requiring a successful Mysticism check DC 30), the user can gain true seeing for 1 minute, but only pertaining to celestial phenomena, planar breaches, or cosmic entities within line of sight. Requires attunement via a ritual taking 1 hour.

Traveller (Mongoose 2e)

  • High-Level Overview: In the standard Traveller universe, the Orrery is primarily a high-tech scientific instrument or educational tool. Sophisticated versions exist on major starbases, universities, or capital ships for navigational planning and scientific research. Any “magical” element would likely be interpreted as advanced psionics, misunderstood alien technology, or features specific to a non-standard, higher-magic campaign setting.
  • Representation and Mechanics:
    • Advanced Astrogation Display & Simulator
    • Tech Level: 12-14
    • Cost: Cr 150,000 – Cr 500,000 (depending on detail and predictive accuracy)
    • Requirements: Requires Advanced Computer/2+ and significant power supply. Usually installed as part of a bridge, lab, or dedicated briefing room.
    • Description: A sophisticated holographic display system integrated with navigational computers and sensor suites. Models stellar systems, jump routes, known anomalies, and potentially incorporates predictive algorithms based on historical data and complex physics.
    • Effects: Grants DM+1 to DM+3 (based on TL and quality) on Astrogation checks for plotting jumps, especially complex multi-jump routes or navigating poorly charted systems. Grants DM+1 or DM+2 on relevant Science checks (Physics, Astronomy, Planetology) when analyzing data presented through the system. Allows running complex simulations (e.g., effects of stellar flares, long-term stability of planetary orbits) requiring an Electronics (computers) check (Average to Formidable depending on complexity) which may provide vital mission planning information. In campaigns with Psionics, a sufficiently advanced (TL 14+) or alien version might grant DM+1 on Psionic checks related to remote viewing or precognition focused on interstellar events, potentially requiring specific psionic skills.
    • Maintenance: Requires periodic software updates and potential hardware calibration involving Electronics (computers) or Electronics (sensors) checks (Average difficulty) quarterly.

Warhammer Fantasy Roleplay (4th Edition)

  • High-Level Overview: (Assuming WFRP 4e) The Celestial Orrery is a rare and wondrous creation, blending masterful engineering with potentially dangerous arcane knowledge. Found in Imperial observatories, Colleges of Magic, the hidden workshops of eccentric geniuses, or perhaps corrupted versions in cultist lairs. It reflects the Old World’s understanding of the cosmos, including the chaotic influence of Morrslieb and the Winds of Magic. “Aetherium” translates directly to Aethyr, potentially unstable or specific to one Wind.
  • Representation and Mechanics:
    • Grand Imperial Orrery
    • Encumbrance: N/A (Fixed Installation, minimum large room size)
    • Price: 600+ GC (Likely requires patronage or institutional resources)
    • Availability: Exotic, Special Order
    • Description: A large, intricate device of brass, iron, carved wood, and leaded glass lenses. Driven by complex clockwork, possibly assisted by bound Aethyric energies. Depicts the sun, Mannslieb, Morrslieb, known planets, and constellations. Precision varies; older models might be wildly inaccurate but possess historical value.
    • Effects:
      • Enhanced Study: Provides +1 SL bonus on Lore (Astrology), Lore (Astronomy), Lore (Science), and Navigation Tests (when using celestial bodies) made while consulting the Orrery. This requires at least 1 hour dedicated study for the bonus to apply to subsequent tests made within the next 8 hours.
      • Calculated Predictions: Characters with the Astrology Talent can use the Orrery for deeper insights. Spending 4 hours and succeeding at a Challenging (–10) Lore (Astrology) Test allows the character to grant themselves or an ally 1 Fortune Point usable within the next week, representing acting on a foreseen auspicious moment. A Critical Success might reveal a more significant prophecy (GM discretion). An Impressive Failure or Fumble might inflict 1 Corruption point due to glimpsing unsettling cosmic truths or Morrslieb’s influence, or result in a Minor Misfortune.
      • Aethyric Resonance: If specifically attuned to a Wind of Magic (GM decision, likely requires special crafting or location), Wizards channeling that Wind within 10 feet gain +1 SL on their Channelling Tests. However, any roll of 96+ on the Channelling Test while benefiting from this resonance results in a Minor Miscast, regardless of SLs. Corrupted versions (e.g., incorporating Warpstone) grant bonuses but inflict Corruption on use or prolonged proximity.
      • Status Symbol: Demonstrating ownership or intricate knowledge of a Grand Orrery grants a +1 SL bonus on relevant social tests (Charm, Intimidate, Leadership) when dealing with scholars, nobles, engineers, or guilds who appreciate such marvels.
    • Maintenance: Requires a successful Challenging (–10) Trade (Engineer or Clockmaker) Test annually. Failure means the Orrery loses precision (negating bonuses) or breaks down until repaired (requiring a Difficult (–20) Test and potentially rare parts).