🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.6

Radius: 13

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.4 AU - 0.62 AU

Year: 247 Days

Day: 13.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,439,793 km

• M1: 161,715 km (0.033 R)
• M2: 579,991 km (0.119 R)
• M3: 1,000,211 km (0.11 R)
• M4: 1,429,856 km (0.058 R)
• M5: 1,906,026 km (0.1 R)
• M6: 2,361,402 km (0.118 R)
• M7: 3,036,388 km (0.096 R)
• M8: 4,125,610 km (0.058 R)
• M9: 4,546,279 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.6

Radius: 13.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.61 AU - 0.61 AU

Year: 323 Days

Day: 13.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,439,793 km

• M1: 165,754 km (0.11 R)
• M2: 593,006 km (0.047 R)
• M3: 1,131,708 km (0.066 R)
• M4: 1,661,584 km (0.106 R)
• M5: 2,365,292 km (0.092 R)
• M6: 3,517,495 km (0.072 R)
• M7: 4,161,962 km (0.1 R)
• M8: 4,615,992 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.7

Radius: 13.1

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.03 AU - 1.05 AU

Year: 719 Days

Day: 12.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,439,793 km

• M1: 162,912 km (0.038 R)
• M2: 950,395 km (0.078 R)
• M3: 1,787,844 km (0.112 R)
• M4: 2,989,564 km (0.106 R)
• M5: 3,485,331 km (0.08 R)
• M6: 4,298,994 km (0.104 R)
• M7: 4,787,730 km (0.108 R)
• M8: 5,422,923 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.9

Radius: 11.7

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.34 AU - 1.34 AU

Year: 1052 Days

Day: 6.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,439,793 km

• M1: 145,559 km (0.102 R)
• M2: 529,876 km (0.045 R)
• M3: 940,372 km (0.05 R)
• M4: 1,382,883 km (0.078 R)
• M5: 1,904,830 km (0.118 R)
• M6: 2,377,409 km (0.087 R)
• M7: 2,795,685 km (0.067 R)
• M8: 3,162,798 km (0.073 R)
• M9: 3,655,574 km (0.039 R)
• M10: 4,339,236 km (0.049 R)
• M11: 5,125,971 km (0.1 R)
• M12: 5,659,138 km (0.054 R)
• M13: 6,027,597 km (0.043 R)
• M14: 6,764,965 km (0.115 R)
• M15: 9,163,318 km (0.043 R)
• M16: 10,106,982 km (0.115 R)
• M17: 10,716,743 km (0.08 R)
• M18: 11,729,371 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 910.1

Radius: 12.2

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.64 AU - 1.76 AU

Year: 1503 Days

Day: 6.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,439,793 km

• M1: 151,842 km (0.086 R)
• M2: 549,922 km (0.108 R)
• M3: 999,912 km (0.098 R)
• M4: 1,559,259 km (0.114 R)
• M5: 2,096,465 km (0.086 R)
• M6: 2,605,247 km (0.117 R)
• M7: 3,352,937 km (0.082 R)
• M8: 3,981,398 km (0.039 R)
• M9: 4,727,442 km (0.102 R)
• M10: 6,079,209 km (0.085 R)
• M11: 6,574,228 km (0.108 R)
• M12: 7,312,643 km (0.086 R)
• M13: 7,844,464 km (0.074 R)
• M14: 9,336,553 km (0.034 R)
• M15: 12,205,690 km (0.093 R)
• M16: 12,675,876 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.7

Radius: 9

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.77 AU - 2.35 AU

Year: 2005 Days

Day: 7.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,439,793 km

• M1: 112,049 km (0.053 R)
• M2: 550,520 km (0.053 R)
• M3: 1,056,909 km (0.117 R)
• M4: 1,350,869 km (0.107 R)
• M5: 1,637,947 km (0.106 R)
• M6: 3,309,554 km (0.102 R)
• M7: 4,847,569 km (0.09 R)
• M8: 5,413,349 km (0.096 R)
• M9: 6,436,149 km (0.083 R)
• M10: 7,119,961 km (0.101 R)
• M11: 8,472,027 km (0.053 R)
• M12: 8,827,022 km (0.11 R)
• M13: 9,158,382 km (0.113 R)
• M14: 12,035,448 km (0.088 R)
• M15: 15,657,362 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.2

Radius: 15

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.32 AU - 3.28 AU

Year: 3178 Days

Day: 13.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,439,793 km

• M1: 187,446 km (0.086 R)
• M2: 880,234 km (0.1 R)
• M3: 1,671,008 km (0.097 R)
• M4: 2,246,362 km (0.07 R)
• M5: 4,204,747 km (0.102 R)
• M6: 6,007,402 km (0.113 R)
• M7: 7,643,853 km (0.072 R)
• M8: 10,051,481 km (0.076 R)
• M9: 11,312,591 km (0.119 R)
• M10: 11,981,593 km (0.057 R)
• M11: 13,183,612 km (0.075 R)
• M12: 14,283,305 km (0.05 R)
• M13: 16,515,306 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.9

Radius: 11.7

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.6 AU - 5.06 AU

Year: 7200 Days

Day: 7.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,439,793 km

• M1: 146,157 km (0.037 R)
• M2: 571,913 km (0.072 R)
• M3: 1,431,652 km (0.036 R)
• M4: 1,823,149 km (0.046 R)
• M5: 3,263,029 km (0.102 R)
• M6: 4,545,382 km (0.115 R)
• M7: 4,989,239 km (0.071 R)
• M8: 5,434,891 km (0.099 R)
• M9: 6,080,106 km (0.083 R)
• M10: 7,126,992 km (0.099 R)
• M11: 9,735,680 km (0.081 R)
• M12: 11,387,240 km (0.109 R)
• M13: 14,178,138 km (0.032 R)
• M14: 14,754,838 km (0.109 R)
• M15: 19,175,605 km (0.087 R)
• M16: 23,744,473 km (0.096 R)
• M17: 24,334,487 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.3

Radius: 5.3

Gravity: 14.93 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 4.75 AU - 7.79 AU

Year: 10649 Days

Day: 20.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,439,793 km

• M1: 70,909 km (0.079 R)
• M2: 266,883 km (0.071 R)
• M3: 458,368 km (0.112 R)
• M4: 658,979 km (0.065 R)
• M5: 1,131,708 km (0.08 R)
• M6: 1,836,314 km (0.084 R)
• M7: 2,092,725 km (0.079 R)
• M8: 3,602,167 km (0.112 R)
• M9: 4,664,761 km (0.115 R)
• M10: 6,410,119 km (0.101 R)
• M11: 8,592,752 km (0.119 R)
• M12: 8,946,850 km (0.085 R)
• M13: 11,489,266 km (0.034 R)
• M14: 12,924,807 km (0.06 R)
• M15: 14,352,420 km (0.076 R)
• M16: 16,014,003 km (0.12 R)
• M17: 24,294,694 km (0.082 R)
• M18: 25,996,968 km (0.106 R)
• M19: 27,586,147 km (0.111 R)
• M20: 29,737,214 km (0.119 R)
• M21: 32,740,242 km (0.103 R)
• M22: 40,561,368 km (0.073 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: 320 - 12,394 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit