🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.55 AU - 0.73 AU

Year: 331 Days

Day: 22.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,894,403 km

• M1: 26,030 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.8

Radius: 9.5

Gravity: 10.5 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.84 AU - 1.28 AU

Year: 705 Days

Day: 14.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,894,403 km

• M1: 118,182 km (0.118 R)
• M2: 456,274 km (0.081 R)
• M3: 873,951 km (0.064 R)
• M4: 1,189,303 km (0.042 R)
• M5: 1,598,304 km (0.045 R)
• M6: 1,937,292 km (0.051 R)
• M7: 2,464,924 km (0.05 R)
• M8: 2,763,073 km (0.096 R)
• M9: 3,203,190 km (0.106 R)
• M10: 3,748,025 km (0.105 R)
• M11: 4,050,811 km (0.106 R)
• M12: 5,059,101 km (0.068 R)
• M13: 5,525,547 km (0.064 R)
• M14: 5,838,954 km (0.067 R)
• M15: 6,762,721 km (0.026 R)
• M16: 8,951,338 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.2

Radius: 10.3

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.58 AU - 2.12 AU

Year: 1625 Days

Day: 11.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,894,403 km

• M1: 128,654 km (0.06 R)
• M2: 507,735 km (0.1 R)
• M3: 852,708 km (0.09 R)
• M4: 1,227,151 km (0.108 R)
• M5: 1,873,265 km (0.112 R)
• M6: 2,333,428 km (0.06 R)
• M7: 2,745,271 km (0.111 R)
• M8: 3,482,788 km (0.097 R)
• M9: 4,902,472 km (0.083 R)
• M10: 5,368,320 km (0.062 R)
• M11: 6,238,979 km (0.105 R)
• M12: 8,519,449 km (0.115 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 241.8

Radius: 7.7

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.87 AU - 6.35 AU

Year: 9752 Days

Day: 23.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,894,403 km

• M1: 98,735 km (0.114 R)
• M2: 464,053 km (0.051 R)
• M3: 1,544,448 km (0.117 R)
• M4: 2,286,005 km (0.029 R)
• M5: 3,102,510 km (0.081 R)
• M6: 3,350,095 km (0.103 R)
• M7: 3,838,532 km (0.056 R)
• M8: 5,153,796 km (0.086 R)
• M9: 5,866,929 km (0.042 R)
• M10: 6,952,561 km (0.073 R)
• M11: 7,561,424 km (0.069 R)
• M12: 8,885,216 km (0.056 R)
• M13: 10,494,141 km (0.116 R)
• M14: 11,294,938 km (0.046 R)
• M15: 13,830,622 km (0.115 R)
• M16: 14,562,306 km (0.085 R)
• M17: 15,980,344 km (0.119 R)
• M18: 21,149,848 km (0.115 R)
• M19: 22,501,315 km (0.103 R)
• M20: 25,708,992 km (0.074 R)
• M21: 29,392,092 km (0.118 R)
• M22: 29,760,103 km (0.112 R)
• M23: 33,212,971 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 616.7

Radius: 3.9

Gravity: 40.55 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.81 AU - 7.45 AU

Year: 9800 Days

Day: 20.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 49,894,403 km

• M1: 48,470 km (0.06 R)
• M2: 242,498 km (0.087 R)
• M3: 495,468 km (0.069 R)
• M4: 887,863 km (0.118 R)
• M5: 1,394,252 km (0.043 R)
• M6: 2,340,309 km (0.104 R)
• M7: 3,123,753 km (0.114 R)
• M8: 3,777,346 km (0.056 R)
• M9: 3,960,753 km (0.096 R)
• M10: 6,135,009 km (0.043 R)
• M11: 6,279,071 km (0.11 R)
• M12: 8,407,400 km (0.108 R)
• M13: 9,950,652 km (0.108 R)
• M14: 10,762,669 km (0.07 R)
• M15: 12,345,564 km (0.111 R)
• M16: 13,282,047 km (0.074 R)
• M17: 13,645,121 km (0.086 R)
• M18: 13,890,910 km (0.115 R)
• M19: 14,645,781 km (0.099 R)
• M20: 16,721,751 km (0.068 R)
• M21: 23,403,240 km (0.037 R)
• M22: 25,198,864 km (0.092 R)
• M23: 28,061,569 km (0.096 R)
• M24: 30,922,029 km (0.106 R)
• M25: 39,033,974 km (0.119 R)
• M26: 40,279,376 km (0.068 R)
• M27: 44,711,812 km (0.079 R)
• M28: 45,526,372 km (0.046 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.1

Radius: 5.3

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.28 AU - 7.74 AU

Year: 13288 Days

Day: 19.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 148.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,894,403 km

• M1: 66,721 km (0.106 R)
• M2: 387,159 km (0.055 R)
• M3: 1,076,805 km (0.049 R)
• M4: 1,818,213 km (0.051 R)
• M5: 2,003,265 km (0.115 R)
• M6: 2,817,377 km (0.102 R)
• M7: 3,066,158 km (0.056 R)
• M8: 4,666,706 km (0.047 R)
• M9: 5,182,519 km (0.091 R)
• M10: 6,992,504 km (0.059 R)
• M11: 8,229,229 km (0.111 R)
• M12: 16,957,816 km (0.088 R)
• M13: 21,414,636 km (0.108 R)
• M14: 30,015,466 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.5

Radius: 7.8

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 7.87 AU - 11.71 AU

Year: 19778 Days

Day: 24.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 49,894,403 km

• M1: 97,837 km (0.112 R)
• M2: 483,500 km (0.118 R)
• M3: 768,335 km (0.117 R)
• M4: 1,077,105 km (0.106 R)
• M5: 1,728,753 km (0.036 R)
• M6: 2,002,816 km (0.11 R)
• M7: 3,142,752 km (0.101 R)
• M8: 5,300,253 km (0.099 R)
• M9: 5,673,350 km (0.058 R)
• M10: 6,548,497 km (0.104 R)
• M11: 7,427,085 km (0.072 R)
• M12: 10,272,437 km (0.09 R)
• M13: 10,746,064 km (0.081 R)
• M14: 11,623,904 km (0.107 R)
• M15: 13,151,149 km (0.064 R)
• M16: 14,219,278 km (0.113 R)
• M17: 15,893,427 km (0.119 R)
• M18: 17,546,185 km (0.101 R)
• M19: 19,789,255 km (0.059 R)
• M20: 22,478,726 km (0.118 R)
• M21: 25,402,466 km (0.086 R)
• M22: 33,571,857 km (0.026 R)
• M23: 40,151,919 km (0.105 R)
• M24: 41,457,908 km (0.118 R)
• M25: 49,745,182 km (0.119 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 15,472 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit