🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.8

Radius: 10.4

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.65 AU - 0.99 AU

Year: 487 Days

Day: 14.9 Hours

Environment

Temp: -138 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,052,790 km

• M1: 136,134 km (0.06 R)
• M2: 511,924 km (0.082 R)
• M3: 890,855 km (0.081 R)
• M4: 1,489,696 km (0.081 R)
• M5: 2,161,240 km (0.102 R)
• M6: 2,520,724 km (0.06 R)
• M7: 2,943,189 km (0.099 R)
• M8: 3,463,490 km (0.081 R)
• M9: 3,889,844 km (0.112 R)
• M10: 4,232,273 km (0.099 R)
• M11: 6,956,002 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.5

Radius: 9.9

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.34 AU - 1.58 AU

Year: 1157 Days

Day: 6.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,052,790 km

• M1: 123,119 km (0.115 R)
• M2: 756,367 km (0.065 R)
• M3: 1,237,025 km (0.071 R)
• M4: 1,544,897 km (0.12 R)
• M5: 1,895,106 km (0.085 R)
• M6: 2,233,047 km (0.103 R)
• M7: 2,575,178 km (0.098 R)
• M8: 3,032,199 km (0.099 R)
• M9: 3,498,197 km (0.047 R)
• M10: 4,027,623 km (0.119 R)
• M11: 4,485,543 km (0.118 R)
• M12: 4,828,421 km (0.043 R)
• M13: 6,136,355 km (0.097 R)
• M14: 7,170,974 km (0.11 R)
• M15: 7,590,746 km (0.031 R)
• M16: 8,211,427 km (0.102 R)
• M17: 8,643,615 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267

Radius: 12.7

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.22 AU - 1.84 AU

Year: 1241 Days

Day: 5.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,052,790 km

• M1: 158,125 km (0.103 R)
• M2: 560,394 km (0.05 R)
• M3: 1,146,219 km (0.095 R)
• M4: 2,024,508 km (0.113 R)
• M5: 2,640,103 km (0.117 R)
• M6: 3,143,201 km (0.071 R)
• M7: 3,781,834 km (0.047 R)
• M8: 4,186,945 km (0.095 R)
• M9: 5,049,975 km (0.108 R)
• M10: 5,929,012 km (0.118 R)
• M11: 7,264,323 km (0.093 R)
• M12: 8,039,240 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.7

Radius: 13.6

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.13 AU - 3.09 AU

Year: 2766 Days

Day: 7.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,052,790 km

• M1: 169,195 km (0.11 R)
• M2: 614,249 km (0.097 R)
• M3: 1,046,138 km (0.099 R)
• M4: 2,197,892 km (0.086 R)
• M5: 2,676,605 km (0.086 R)
• M6: 3,102,809 km (0.116 R)
• M7: 4,158,073 km (0.12 R)
• M8: 6,186,919 km (0.036 R)
• M9: 6,761,375 km (0.077 R)
• M10: 7,852,841 km (0.101 R)
• M11: 8,597,090 km (0.086 R)
• M12: 9,240,511 km (0.028 R)
• M13: 10,187,316 km (0.098 R)
• M14: 10,908,378 km (0.1 R)
• M15: 11,878,969 km (0.041 R)
• M16: 18,655,902 km (0.115 R)
• M17: 21,369,308 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.8

Radius: 11.8

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.19 AU - 3.11 AU

Year: 2830 Days

Day: 5.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,052,790 km

• M1: 147,354 km (0.08 R)
• M2: 542,143 km (0.07 R)
• M3: 926,460 km (0.117 R)
• M4: 1,756,728 km (0.081 R)
• M5: 2,286,155 km (0.119 R)
• M6: 3,004,224 km (0.051 R)
• M7: 4,928,053 km (0.102 R)
• M8: 5,967,609 km (0.099 R)
• M9: 7,250,560 km (0.079 R)
• M10: 8,334,845 km (0.073 R)
• M11: 10,159,640 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.2

Radius: 13.4

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.54 AU - 4.06 AU

Year: 3933 Days

Day: 5.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,052,790 km

• M1: 169,345 km (0.079 R)
• M2: 669,600 km (0.09 R)
• M3: 1,388,717 km (0.111 R)
• M4: 1,910,664 km (0.072 R)
• M5: 2,436,501 km (0.099 R)
• M6: 3,751,316 km (0.11 R)
• M7: 5,151,403 km (0.096 R)
• M8: 6,278,772 km (0.11 R)
• M9: 7,267,465 km (0.061 R)
• M10: 7,925,845 km (0.071 R)
• M11: 8,504,639 km (0.043 R)
• M12: 10,480,528 km (0.093 R)
• M13: 11,036,733 km (0.088 R)
• M14: 13,380,333 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 170.3

Radius: 5.9

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.32 AU - 9.18 AU

Year: 14153 Days

Day: 18.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 53,052,790 km

• M1: 74,949 km (0.11 R)
• M2: 290,818 km (0.118 R)
• M3: 505,342 km (0.07 R)
• M4: 779,106 km (0.113 R)
• M5: 969,843 km (0.115 R)
• M6: 1,713,195 km (0.103 R)
• M7: 2,009,847 km (0.104 R)
• M8: 2,943,488 km (0.051 R)
• M9: 4,728,639 km (0.096 R)
• M10: 5,498,171 km (0.098 R)
• M11: 7,433,967 km (0.112 R)
• M12: 7,861,518 km (0.062 R)
• M13: 8,264,235 km (0.118 R)
• M14: 8,937,126 km (0.048 R)
• M15: 9,510,236 km (0.055 R)
• M16: 10,778,377 km (0.113 R)
• M17: 11,174,811 km (0.103 R)
• M18: 12,858,535 km (0.064 R)
• M19: 13,992,637 km (0.101 R)
• M20: 14,404,929 km (0.062 R)
• M21: 14,704,274 km (0.067 R)
• M22: 17,520,753 km (0.116 R)
• M23: 21,366,465 km (0.108 R)
• M24: 24,109,043 km (0.113 R)
• M25: 27,994,998 km (0.109 R)
• M26: 29,122,965 km (0.041 R)
• M27: 30,183,315 km (0.102 R)
• M28: 33,728,186 km (0.075 R)
• M29: 34,897,144 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 316.7

Radius: 6.6

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.75 AU - 10.85 AU

Year: 17125 Days

Day: 23.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,052,790 km

• M1: 108,159 km (0.119 R)
• M2: 324,328 km (0.097 R)
• M3: 608,564 km (0.117 R)
• M4: 1,101,639 km (0.106 R)
• M5: 1,867,131 km (0.052 R)
• M6: 2,721,933 km (0.107 R)
• M7: 3,895,529 km (0.093 R)
• M8: 5,204,510 km (0.055 R)
• M9: 6,545,804 km (0.108 R)
• M10: 8,469,483 km (0.084 R)
• M11: 9,534,919 km (0.113 R)
• M12: 13,390,356 km (0.115 R)
• M13: 13,968,103 km (0.114 R)
• M14: 18,329,030 km (0.117 R)
• M15: 18,722,323 km (0.044 R)
• M16: 19,935,711 km (0.098 R)
• M17: 24,453,866 km (0.113 R)
• M18: 27,203,026 km (0.069 R)
• M19: 38,440,818 km (0.083 R)
• M20: 43,380,391 km (0.097 R)
• M21: 52,105,088 km (0.066 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 11,562 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit