🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.56 AU - 0.62 AU

Year: 293 Days

Day: 24.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 55.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980

Radius: 11.8

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.9 AU - 1.12 AU

Year: 655 Days

Day: 10.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,553,329 km

• M1: 146,756 km (0.038 R)
• M2: 695,181 km (0.111 R)
• M3: 1,212,940 km (0.116 R)
• M4: 1,822,401 km (0.049 R)
• M5: 2,305,303 km (0.113 R)
• M6: 2,970,415 km (0.07 R)
• M7: 3,355,480 km (0.095 R)
• M8: 3,921,409 km (0.078 R)
• M9: 4,517,257 km (0.098 R)
• M10: 5,029,630 km (0.094 R)
• M11: 6,716,795 km (0.058 R)
• M12: 7,113,080 km (0.098 R)
• M13: 7,952,922 km (0.083 R)
• M14: 8,599,634 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114

Radius: 12.6

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.96 AU - 4.52 AU

Year: 4670 Days

Day: 9.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,553,329 km

• M1: 156,629 km (0.108 R)
• M2: 624,870 km (0.092 R)
• M3: 1,495,231 km (0.115 R)
• M4: 10,792,290 km (0.108 R)
• M5: 11,650,233 km (0.053 R)
• M6: 12,154,827 km (0.081 R)
• M7: 13,249,883 km (0.078 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.7

Radius: 6.6

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.73 AU - 8.57 AU

Year: 13662 Days

Day: 20.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,553,329 km

• M1: 82,279 km (0.097 R)
• M2: 471,084 km (0.073 R)
• M3: 1,209,349 km (0.111 R)
• M4: 1,470,697 km (0.032 R)
• M5: 1,753,586 km (0.048 R)
• M6: 2,530,149 km (0.109 R)
• M7: 4,768,582 km (0.035 R)
• M8: 6,839,764 km (0.038 R)
• M9: 7,631,586 km (0.095 R)
• M10: 7,893,831 km (0.073 R)
• M11: 9,799,409 km (0.071 R)
• M12: 10,533,186 km (0.082 R)
• M13: 10,913,464 km (0.103 R)
• M14: 19,261,623 km (0.07 R)
• M15: 19,830,544 km (0.074 R)
• M16: 23,758,087 km (0.116 R)
• M17: 24,412,129 km (0.118 R)
• M18: 27,048,193 km (0.105 R)
• M19: 29,545,579 km (0.084 R)
• M20: 32,533,947 km (0.108 R)
• M21: 38,333,557 km (0.118 R)
• M22: 41,880,522 km (0.067 R)
• M23: 45,497,200 km (0.081 R)
• M24: 46,215,719 km (0.108 R)
• M25: 52,396,056 km (0.081 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 12,271 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit