🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.1

Radius: 12.1

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.5 AU - 0.72 AU

Year: 335 Days

Day: 12.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,409,361 km

• M1: 150,495 km (0.095 R)
• M2: 668,553 km (0.107 R)
• M3: 1,048,681 km (0.092 R)
• M4: 1,704,069 km (0.088 R)
• M5: 2,245,015 km (0.076 R)
• M6: 2,667,629 km (0.104 R)
• M7: 3,402,604 km (0.097 R)
• M8: 3,938,912 km (0.091 R)
• M9: 4,460,859 km (0.037 R)
• M10: 4,968,444 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510

Radius: 10.2

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.74 AU - 1.02 AU

Year: 580 Days

Day: 5.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,409,361 km

• M1: 127,158 km (0.115 R)
• M2: 508,483 km (0.103 R)
• M3: 841,787 km (0.107 R)
• M4: 1,278,463 km (0.111 R)
• M5: 1,604,736 km (0.095 R)
• M6: 1,979,180 km (0.04 R)
• M7: 2,529,850 km (0.087 R)
• M8: 2,951,716 km (0.119 R)
• M9: 3,310,750 km (0.071 R)
• M10: 3,857,231 km (0.113 R)
• M11: 4,389,351 km (0.114 R)
• M12: 4,796,856 km (0.097 R)
• M13: 6,044,502 km (0.027 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.4

Radius: 13.7

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.88 AU - 1.44 AU

Year: 878 Days

Day: 7.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,409,361 km

• M1: 170,542 km (0.118 R)
• M2: 644,767 km (0.104 R)
• M3: 1,233,135 km (0.117 R)
• M4: 1,742,666 km (0.038 R)
• M5: 2,373,221 km (0.095 R)
• M6: 3,006,169 km (0.084 R)
• M7: 3,583,767 km (0.065 R)
• M8: 4,296,301 km (0.118 R)
• M9: 5,909,116 km (0.115 R)
• M10: 6,992,653 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985

Radius: 11.6

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.43 AU - 4.17 AU

Year: 5207 Days

Day: 7.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,409,361 km

• M1: 144,811 km (0.11 R)
• M2: 520,601 km (0.103 R)
• M3: 1,104,780 km (0.103 R)
• M4: 1,613,862 km (0.106 R)
• M5: 2,495,292 km (0.101 R)
• M6: 2,859,264 km (0.074 R)
• M7: 3,238,046 km (0.103 R)
• M8: 3,718,704 km (0.088 R)
• M9: 4,322,780 km (0.086 R)
• M10: 5,335,857 km (0.113 R)
• M11: 6,041,510 km (0.057 R)
• M12: 6,878,061 km (0.103 R)
• M13: 7,639,066 km (0.09 R)
• M14: 8,822,534 km (0.113 R)
• M15: 11,206,227 km (0.12 R)
• M16: 13,990,842 km (0.112 R)
• M17: 18,608,180 km (0.11 R)
• M18: 19,301,416 km (0.086 R)
• M19: 19,796,735 km (0.103 R)
• M20: 21,635,742 km (0.056 R)
• M21: 22,949,660 km (0.048 R)
• M22: 24,728,079 km (0.039 R)
• M23: 25,821,041 km (0.117 R)
• M24: 26,858,353 km (0.087 R)
• M25: 27,565,203 km (0.106 R)
• M26: 30,326,929 km (0.066 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.9

Radius: 5.7

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.5 AU - 7.9 AU

Year: 12190 Days

Day: 20 Hours

Environment

Temp: -239 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,409,361 km

• M1: 79,287 km (0.085 R)
• M2: 544,686 km (0.118 R)
• M3: 889,659 km (0.061 R)
• M4: 1,254,079 km (0.086 R)
• M5: 1,881,343 km (0.082 R)
• M6: 3,805,171 km (0.097 R)
• M7: 3,995,909 km (0.099 R)
• M8: 5,002,702 km (0.11 R)
• M9: 6,246,609 km (0.117 R)
• M10: 8,145,604 km (0.073 R)
• M11: 8,658,126 km (0.111 R)
• M12: 16,842,925 km (0.034 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 386.1

Radius: 7.7

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.48 AU - 8.58 AU

Year: 13102 Days

Day: 21.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,409,361 km

• M1: 95,892 km (0.087 R)
• M2: 367,113 km (0.115 R)
• M3: 1,373,159 km (0.064 R)
• M4: 2,358,859 km (0.072 R)
• M5: 2,859,414 km (0.099 R)
• M6: 4,671,044 km (0.052 R)
• M7: 4,945,556 km (0.047 R)
• M8: 5,696,238 km (0.105 R)
• M9: 7,504,577 km (0.084 R)
• M10: 8,228,032 km (0.029 R)
• M11: 8,539,046 km (0.1 R)
• M12: 10,366,684 km (0.118 R)
• M13: 11,101,359 km (0.116 R)
• M14: 11,702,443 km (0.081 R)
• M15: 11,982,789 km (0.083 R)
• M16: 13,574,960 km (0.113 R)
• M17: 15,503,875 km (0.118 R)
• M18: 16,815,997 km (0.052 R)
• M19: 17,173,387 km (0.075 R)
• M20: 17,682,020 km (0.098 R)
• M21: 20,136,173 km (0.092 R)
• M22: 22,462,270 km (0.112 R)
• M23: 29,980,460 km (0.045 R)
• M24: 31,467,314 km (0.081 R)
• M25: 32,228,916 km (0.077 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 11,017 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit