🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641

Radius: 8.6

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.57 AU - 0.63 AU

Year: 321 Days

Day: 6.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,502,032 km

• M1: 106,962 km (0.083 R)
• M2: 396,434 km (0.09 R)
• M3: 685,308 km (0.051 R)
• M4: 1,455,288 km (0.108 R)
• M5: 2,113,968 km (0.071 R)
• M6: 2,431,564 km (0.084 R)
• M7: 3,029,207 km (0.065 R)
• M8: 3,346,504 km (0.052 R)
• M9: 3,674,423 km (0.119 R)
• M10: 4,073,700 km (0.097 R)
• M11: 4,408,350 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990

Radius: 14.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.67 AU - 0.95 AU

Year: 503 Days

Day: 12.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,502,032 km

• M1: 181,612 km (0.094 R)
• M2: 678,127 km (0.091 R)
• M3: 1,154,297 km (0.09 R)
• M4: 1,808,937 km (0.073 R)
• M5: 2,642,347 km (0.12 R)
• M6: 3,356,827 km (0.114 R)
• M7: 4,376,187 km (0.086 R)
• M8: 5,209,596 km (0.105 R)
• M9: 5,773,730 km (0.048 R)
• M10: 6,281,166 km (0.06 R)
• M11: 6,777,681 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.2

Radius: 11

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2 AU - 2.32 AU

Year: 2191 Days

Day: 11.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,502,032 km

• M1: 136,882 km (0.043 R)
• M2: 569,519 km (0.091 R)
• M3: 1,195,437 km (0.104 R)
• M4: 1,623,286 km (0.088 R)
• M5: 2,090,181 km (0.045 R)
• M6: 2,660,748 km (0.114 R)
• M7: 3,130,036 km (0.115 R)
• M8: 3,822,375 km (0.104 R)
• M9: 4,215,518 km (0.111 R)
• M10: 4,657,431 km (0.056 R)
• M11: 5,560,702 km (0.075 R)
• M12: 6,521,869 km (0.118 R)
• M13: 8,150,840 km (0.086 R)
• M14: 9,249,786 km (0.107 R)
• M15: 10,294,727 km (0.116 R)
• M16: 10,942,935 km (0.088 R)
• M17: 11,297,033 km (0.104 R)
• M18: 12,069,706 km (0.067 R)
• M19: 13,675,190 km (0.094 R)
• M20: 17,411,696 km (0.118 R)
• M21: 18,332,022 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.8

Radius: 10.5

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.73 AU - 2.85 AU

Year: 3217 Days

Day: 12.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,502,032 km

• M1: 130,599 km (0.085 R)
• M2: 594,801 km (0.11 R)
• M3: 1,345,932 km (0.08 R)
• M4: 1,762,562 km (0.087 R)
• M5: 2,337,916 km (0.036 R)
• M6: 3,070,347 km (0.113 R)
• M7: 3,885,805 km (0.115 R)
• M8: 4,413,137 km (0.116 R)
• M9: 5,037,708 km (0.1 R)
• M10: 5,557,561 km (0.104 R)
• M11: 6,613,572 km (0.093 R)
• M12: 7,334,484 km (0.088 R)
• M13: 8,784,985 km (0.098 R)
• M14: 9,656,243 km (0.101 R)
• M15: 10,793,187 km (0.094 R)
• M16: 12,199,557 km (0.104 R)
• M17: 14,124,582 km (0.103 R)
• M18: 14,481,223 km (0.08 R)
• M19: 15,913,623 km (0.092 R)
• M20: 17,379,981 km (0.105 R)
• M21: 18,567,789 km (0.117 R)
• M22: 22,181,175 km (0.027 R)
• M23: 23,223,274 km (0.075 R)
• M24: 24,297,836 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.4

Radius: 9.3

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.14 AU - 3.5 AU

Year: 3269 Days

Day: 14.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,502,032 km

• M1: 115,639 km (0.044 R)
• M2: 467,942 km (0.086 R)
• M3: 844,929 km (0.086 R)
• M4: 1,281,455 km (0.08 R)
• M5: 1,678,488 km (0.078 R)
• M6: 1,975,290 km (0.09 R)
• M7: 2,835,628 km (0.099 R)
• M8: 4,070,857 km (0.047 R)
• M9: 4,545,980 km (0.104 R)
• M10: 5,277,663 km (0.067 R)
• M11: 6,004,260 km (0.114 R)
• M12: 6,419,993 km (0.119 R)
• M13: 7,881,414 km (0.106 R)
• M14: 8,620,577 km (0.098 R)
• M15: 9,006,989 km (0.103 R)
• M16: 9,405,069 km (0.118 R)
• M17: 10,197,638 km (0.091 R)
• M18: 11,157,308 km (0.101 R)
• M19: 11,701,545 km (0.113 R)
• M20: 13,488,043 km (0.053 R)
• M21: 14,299,612 km (0.057 R)
• M22: 14,992,250 km (0.04 R)
• M23: 17,537,508 km (0.113 R)
• M24: 18,273,530 km (0.094 R)
• M25: 20,234,309 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.8

Radius: 11.5

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.98 AU - 3.96 AU

Year: 4462 Days

Day: 5.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,502,032 km

• M1: 143,165 km (0.09 R)
• M2: 566,826 km (0.042 R)
• M3: 950,844 km (0.104 R)
• M4: 1,779,167 km (0.026 R)
• M5: 2,380,401 km (0.108 R)
• M6: 3,644,204 km (0.106 R)
• M7: 4,234,817 km (0.08 R)
• M8: 4,635,739 km (0.084 R)
• M9: 6,732,802 km (0.038 R)
• M10: 7,647,443 km (0.095 R)
• M11: 8,050,310 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.5

Radius: 5.6

Gravity: 31.62 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 8.39 AU - 11.73 AU

Year: 22025 Days

Day: 18.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 32,502,032 km

• M1: 69,862 km (0.025 R)
• M2: 300,393 km (0.103 R)
• M3: 561,142 km (0.101 R)
• M4: 760,256 km (0.083 R)
• M5: 1,046,288 km (0.044 R)
• M6: 2,963,683 km (0.083 R)
• M7: 3,642,708 km (0.097 R)
• M8: 3,968,383 km (0.077 R)
• M9: 5,552,026 km (0.065 R)
• M10: 6,577,669 km (0.071 R)
• M11: 7,882,312 km (0.104 R)
• M12: 8,261,243 km (0.091 R)
• M13: 9,113,801 km (0.118 R)
• M14: 10,149,468 km (0.039 R)
• M15: 12,965,647 km (0.085 R)
• M16: 14,035,422 km (0.105 R)
• M17: 14,672,559 km (0.095 R)
• M18: 15,918,859 km (0.118 R)
• M19: 16,349,551 km (0.099 R)
• M20: 17,324,331 km (0.116 R)
• M21: 19,098,263 km (0.119 R)
• M22: 19,682,741 km (0.091 R)
• M23: 23,002,917 km (0.105 R)
• M24: 27,902,097 km (0.089 R)
• M25: 28,528,015 km (0.071 R)
• M26: 30,068,274 km (0.082 R)
• M27: 34,159,926 km (0.069 R)
• M28: 34,445,209 km (0.089 R)
• M29: 35,895,411 km (0.065 R)
• M30: 40,330,539 km (0.115 R)
• M31: 47,204,411 km (0.113 R)
• M32: 51,569,378 km (0.05 R)
• M33: 55,210,141 km (0.066 R)
• M34: 73,366,835 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40.9

Radius: 3.1

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 8.34 AU - 12.28 AU

Year: 22851 Days

Day: 16.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,502,032 km

• M1: 38,895 km (0.09 R)
• M2: 609,163 km (0.118 R)
• M3: 2,692,313 km (0.114 R)
• M4: 3,157,413 km (0.12 R)
• M5: 4,370,203 km (0.119 R)
• M6: 4,682,563 km (0.093 R)
• M7: 4,871,655 km (0.043 R)
• M8: 5,588,378 km (0.056 R)
• M9: 6,210,107 km (0.117 R)
• M10: 6,405,332 km (0.025 R)
• M11: 6,638,256 km (0.073 R)
• M12: 16,722,200 km (0.118 R)
• M13: 22,236,975 km (0.034 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 559 - 16,572 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit