🌌 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: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.57 AU - 0.61 AU

Year: 293 Days

Day: 36.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,242,892 km

• M1: 27,376 km (0.095 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.52 AU - 0.78 AU

Year: 338 Days

Day: 14.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.7

Radius: 11.8

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.95 AU

Year: 471 Days

Day: 14.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 43,242,892 km

• M1: 146,756 km (0.096 R)
• M2: 838,197 km (0.094 R)
• M3: 1,688,362 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.7

Radius: 8.6

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2 AU - 2.66 AU

Year: 2296 Days

Day: 13.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,242,892 km

• M1: 107,112 km (0.043 R)
• M2: 486,193 km (0.103 R)
• M3: 1,066,334 km (0.093 R)
• M4: 2,158,398 km (0.071 R)
• M5: 3,178,207 km (0.083 R)
• M6: 4,378,879 km (0.073 R)
• M7: 4,884,520 km (0.08 R)
• M8: 5,538,412 km (0.082 R)
• M9: 5,954,145 km (0.105 R)
• M10: 7,416,763 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346

Radius: 10.9

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.34 AU - 3.58 AU

Year: 4156 Days

Day: 5.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,242,892 km

• M1: 169,345 km (0.092 R)
• M2: 717,322 km (0.12 R)
• M3: 1,570,179 km (0.118 R)
• M4: 2,666,432 km (0.091 R)
• M5: 4,766,637 km (0.038 R)
• M6: 7,856,282 km (0.111 R)
• M7: 9,967,557 km (0.104 R)
• M8: 10,708,515 km (0.116 R)
• M9: 11,113,027 km (0.093 R)
• M10: 12,432,481 km (0.054 R)
• M11: 13,996,526 km (0.116 R)
• M12: 16,798,494 km (0.095 R)
• M13: 19,353,477 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 900.8

Radius: 6.2

Gravity: 23.43 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.98 AU - 6.1 AU

Year: 9585 Days

Day: 24.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,242,892 km

• M1: 77,193 km (0.094 R)
• M2: 289,771 km (0.056 R)
• M3: 642,373 km (0.058 R)
• M4: 912,397 km (0.111 R)
• M5: 1,196,035 km (0.116 R)
• M6: 1,453,343 km (0.102 R)
• M7: 2,918,505 km (0.099 R)
• M8: 3,488,323 km (0.086 R)
• M9: 4,974,129 km (0.1 R)
• M10: 5,437,135 km (0.1 R)
• M11: 9,221,961 km (0.067 R)
• M12: 9,971,147 km (0.07 R)
• M13: 15,134,817 km (0.058 R)
• M14: 19,582,062 km (0.108 R)
• M15: 20,234,010 km (0.037 R)
• M16: 32,611,737 km (0.077 R)
• M17: 35,890,175 km (0.045 R)
• M18: 37,608,905 km (0.118 R)
• M19: 39,510,593 km (0.117 R)
• M20: 40,550,448 km (0.067 R)
• M21: 48,494,095 km (0.065 R)
• M22: 51,049,675 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.4

Radius: 4.4

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 7.83 AU - 11.81 AU

Year: 19869 Days

Day: 20.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 43,242,892 km

• M1: 103,372 km (0.107 R)
• M2: 360,381 km (0.107 R)
• M3: 580,141 km (0.116 R)
• M4: 787,782 km (0.062 R)
• M5: 1,353,861 km (0.114 R)
• M6: 2,966,376 km (0.097 R)
• M7: 3,119,265 km (0.054 R)
• M8: 3,277,390 km (0.106 R)
• M9: 3,417,115 km (0.057 R)
• M10: 3,758,796 km (0.089 R)
• M11: 4,313,505 km (0.112 R)
• M12: 4,801,194 km (0.026 R)
• M13: 5,988,253 km (0.079 R)
• M14: 7,123,252 km (0.076 R)
• M15: 7,518,041 km (0.086 R)
• M16: 7,720,746 km (0.087 R)
• M17: 10,298,018 km (0.104 R)
• M18: 11,270,404 km (0.074 R)
• M19: 12,812,908 km (0.056 R)
• M20: 15,973,911 km (0.056 R)
• M21: 19,238,735 km (0.118 R)
• M22: 22,001,658 km (0.063 R)
• M23: 22,668,266 km (0.066 R)
• M24: 27,238,332 km (0.09 R)
• M25: 27,524,811 km (0.047 R)
• M26: 33,904,562 km (0.112 R)
• M27: 41,706,690 km (0.11 R)
• M28: 42,598,293 km (0.086 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 15,508 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit