🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.4

Radius: 10.9

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.83 AU - 0.83 AU

Year: 504 Days

Day: 11.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,054,236 km

• M1: 135,536 km (0.101 R)
• M2: 512,074 km (0.033 R)
• M3: 1,116,748 km (0.103 R)
• M4: 1,466,358 km (0.041 R)
• M5: 2,026,602 km (0.113 R)
• M6: 2,584,752 km (0.09 R)
• M7: 3,136,768 km (0.106 R)
• M8: 4,035,253 km (0.107 R)
• M9: 4,423,759 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.5

Radius: 9.9

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.82 AU - 1.2 AU

Year: 677 Days

Day: 7.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 35,054,236 km

• M1: 123,119 km (0.109 R)
• M2: 445,502 km (0.033 R)
• M3: 899,682 km (0.071 R)
• M4: 1,305,092 km (0.108 R)
• M5: 2,090,331 km (0.045 R)
• M6: 3,353,535 km (0.061 R)
• M7: 3,745,631 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.2

Radius: 9.3

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.12 AU - 1.68 AU

Year: 1105 Days

Day: 10.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,054,236 km

• M1: 115,639 km (0.118 R)
• M2: 472,430 km (0.109 R)
• M3: 1,262,456 km (0.116 R)
• M4: 1,851,274 km (0.076 R)
• M5: 2,526,558 km (0.115 R)
• M6: 3,448,081 km (0.073 R)
• M7: 3,860,971 km (0.111 R)
• M8: 4,218,211 km (0.026 R)
• M9: 4,541,941 km (0.087 R)
• M10: 5,341,990 km (0.113 R)
• M11: 5,635,651 km (0.053 R)
• M12: 7,219,892 km (0.082 R)
• M13: 7,606,005 km (0.08 R)
• M14: 8,703,155 km (0.114 R)
• M15: 10,607,536 km (0.033 R)
• M16: 11,762,282 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.1

Radius: 10.3

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.01 AU - 2.73 AU

Year: 2433 Days

Day: 14.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,054,236 km

• M1: 128,056 km (0.096 R)
• M2: 510,727 km (0.101 R)
• M3: 975,827 km (0.058 R)
• M4: 1,419,684 km (0.116 R)
• M5: 2,179,192 km (0.052 R)
• M6: 2,593,578 km (0.088 R)
• M7: 3,222,637 km (0.12 R)
• M8: 5,324,637 km (0.033 R)
• M9: 5,780,761 km (0.083 R)
• M10: 6,938,050 km (0.041 R)
• M11: 7,660,907 km (0.062 R)
• M12: 8,658,426 km (0.092 R)
• M13: 9,881,837 km (0.09 R)
• M14: 10,241,171 km (0.089 R)
• M15: 11,568,703 km (0.118 R)
• M16: 13,136,039 km (0.091 R)
• M17: 14,060,704 km (0.102 R)
• M18: 15,745,924 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.3

Radius: 9.4

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.82 AU - 3.02 AU

Year: 2510 Days

Day: 13.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,054,236 km

• M1: 116,986 km (0.115 R)
• M2: 514,317 km (0.091 R)
• M3: 866,471 km (0.09 R)
• M4: 1,204,113 km (0.084 R)
• M5: 1,862,643 km (0.108 R)
• M6: 2,287,052 km (0.068 R)
• M7: 2,639,505 km (0.119 R)
• M8: 3,228,023 km (0.102 R)
• M9: 3,581,223 km (0.09 R)
• M10: 4,079,085 km (0.057 R)
• M11: 4,429,144 km (0.076 R)
• M12: 5,429,505 km (0.039 R)
• M13: 6,219,980 km (0.088 R)
• M14: 6,629,280 km (0.041 R)
• M15: 8,350,553 km (0.106 R)
• M16: 8,647,206 km (0.072 R)
• M17: 11,563,915 km (0.094 R)
• M18: 12,310,259 km (0.032 R)
• M19: 15,421,745 km (0.047 R)
• M20: 16,377,077 km (0.073 R)
• M21: 17,264,641 km (0.057 R)
• M22: 17,964,909 km (0.103 R)
• M23: 18,460,676 km (0.065 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.6

Radius: 8.2

Gravity: 11.12 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.4 AU - 3.22 AU

Year: 3141 Days

Day: 12.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,054,236 km

• M1: 103,073 km (0.083 R)
• M2: 363,972 km (0.069 R)
• M3: 888,462 km (0.101 R)
• M4: 1,251,985 km (0.025 R)
• M5: 1,655,300 km (0.067 R)
• M6: 2,474,050 km (0.034 R)
• M7: 3,184,939 km (0.104 R)
• M8: 4,262,193 km (0.065 R)
• M9: 4,647,108 km (0.112 R)
• M10: 5,832,821 km (0.085 R)
• M11: 6,193,801 km (0.091 R)
• M12: 7,084,058 km (0.101 R)
• M13: 7,463,139 km (0.101 R)
• M14: 9,042,892 km (0.085 R)
• M15: 10,146,625 km (0.071 R)
• M16: 11,466,078 km (0.056 R)
• M17: 11,944,941 km (0.081 R)
• M18: 13,461,864 km (0.111 R)
• M19: 14,241,867 km (0.11 R)
• M20: 16,052,600 km (0.057 R)
• M21: 20,886,107 km (0.074 R)
• M22: 21,469,389 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220

Radius: 13.6

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.36 AU - 3.76 AU

Year: 4479 Days

Day: 8.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,054,236 km

• M1: 170,691 km (0.115 R)
• M2: 1,360,892 km (0.115 R)
• M3: 2,109,031 km (0.113 R)
• M4: 5,069,273 km (0.117 R)
• M5: 7,073,287 km (0.045 R)
• M6: 9,812,274 km (0.118 R)
• M7: 11,178,850 km (0.113 R)
• M8: 13,149,503 km (0.072 R)
• M9: 13,962,568 km (0.084 R)
• M10: 15,490,261 km (0.076 R)
• M11: 15,939,354 km (0.106 R)
• M12: 16,551,808 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122.2

Radius: 7.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.44 AU - 9.36 AU

Year: 14807 Days

Day: 23 Hours

Environment

Temp: -240 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,054,236 km

• M1: 101,427 km (0.101 R)
• M2: 825,182 km (0.099 R)
• M3: 1,436,140 km (0.116 R)
• M4: 1,897,799 km (0.116 R)
• M5: 2,302,012 km (0.105 R)
• M6: 2,955,755 km (0.104 R)
• M7: 5,850,773 km (0.097 R)
• M8: 8,110,897 km (0.119 R)
• M9: 9,304,838 km (0.104 R)
• M10: 13,091,160 km (0.071 R)
• M11: 13,529,781 km (0.078 R)
• M12: 16,559,437 km (0.093 R)
• M13: 27,052,681 km (0.032 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: 190 - 18,761 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit