🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.3

Radius: 13.3

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.85 AU - 1.19 AU

Year: 711 Days

Day: 12.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,944,109 km

• M1: 165,455 km (0.077 R)
• M2: 609,462 km (0.103 R)
• M3: 1,112,559 km (0.116 R)
• M4: 2,777,733 km (0.073 R)
• M5: 3,426,240 km (0.059 R)
• M6: 3,842,870 km (0.115 R)
• M7: 4,430,939 km (0.067 R)
• M8: 5,146,915 km (0.101 R)
• M9: 6,207,264 km (0.107 R)
• M10: 6,768,855 km (0.095 R)
• M11: 7,233,805 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.6

Radius: 14.4

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.23 AU - 1.65 AU

Year: 1193 Days

Day: 7.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,944,109 km

• M1: 179,069 km (0.11 R)
• M2: 892,950 km (0.096 R)
• M3: 1,438,832 km (0.081 R)
• M4: 2,803,614 km (0.1 R)
• M5: 3,257,942 km (0.104 R)
• M6: 3,952,226 km (0.103 R)
• M7: 4,743,599 km (0.102 R)
• M8: 5,659,138 km (0.077 R)
• M9: 6,782,917 km (0.111 R)
• M10: 8,811,015 km (0.028 R)
• M11: 9,441,720 km (0.116 R)
• M12: 11,020,277 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.8

Radius: 13.7

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.74 AU - 2.9 AU

Year: 2439 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,944,109 km

• M1: 170,392 km (0.104 R)
• M2: 608,863 km (0.078 R)
• M3: 1,090,718 km (0.102 R)
• M4: 1,717,982 km (0.114 R)
• M5: 2,347,340 km (0.117 R)
• M6: 3,361,015 km (0.073 R)
• M7: 4,016,852 km (0.11 R)
• M8: 4,563,633 km (0.099 R)
• M9: 5,091,115 km (0.111 R)
• M10: 6,113,018 km (0.11 R)
• M11: 6,839,315 km (0.102 R)
• M12: 7,443,541 km (0.068 R)
• M13: 7,989,573 km (0.061 R)
• M14: 8,693,132 km (0.052 R)
• M15: 9,196,380 km (0.042 R)
• M16: 10,785,857 km (0.067 R)
• M17: 13,906,917 km (0.083 R)
• M18: 14,737,335 km (0.066 R)
• M19: 15,846,154 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613

Radius: 8

Gravity: 9.58 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 2.4 AU - 2.82 AU

Year: 2911 Days

Day: 13.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,944,109 km

• M1: 99,483 km (0.038 R)
• M2: 385,514 km (0.076 R)
• M3: 1,440,478 km (0.087 R)
• M4: 1,830,779 km (0.108 R)
• M5: 2,155,406 km (0.069 R)
• M6: 2,474,498 km (0.059 R)
• M7: 2,889,034 km (0.048 R)
• M8: 4,525,635 km (0.115 R)
• M9: 5,746,353 km (0.074 R)
• M10: 6,116,758 km (0.104 R)
• M11: 7,233,356 km (0.119 R)
• M12: 8,213,521 km (0.094 R)
• M13: 11,229,863 km (0.027 R)
• M14: 13,576,755 km (0.093 R)
• M15: 14,475,090 km (0.117 R)
• M16: 14,815,724 km (0.04 R)
• M17: 18,296,568 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.4

Radius: 13.2

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.64 AU - 4.46 AU

Year: 5626 Days

Day: 8.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,944,109 km

• M1: 164,258 km (0.111 R)
• M2: 1,128,267 km (0.116 R)
• M3: 1,659,340 km (0.088 R)
• M4: 2,115,763 km (0.058 R)
• M5: 3,073,039 km (0.068 R)
• M6: 3,668,140 km (0.067 R)
• M7: 4,206,393 km (0.073 R)
• M8: 5,134,349 km (0.105 R)
• M9: 8,022,485 km (0.115 R)
• M10: 10,015,727 km (0.099 R)
• M11: 11,591,142 km (0.115 R)
• M12: 12,086,760 km (0.101 R)
• M13: 14,299,013 km (0.111 R)
• M14: 15,138,108 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.8

Radius: 7.8

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 6.38 AU - 7.32 AU

Year: 12375 Days

Day: 15.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,944,109 km

• M1: 96,939 km (0.091 R)
• M2: 397,930 km (0.113 R)
• M3: 1,006,046 km (0.028 R)
• M4: 1,389,914 km (0.109 R)
• M5: 1,655,001 km (0.097 R)
• M6: 3,075,433 km (0.04 R)
• M7: 3,423,398 km (0.094 R)
• M8: 4,247,832 km (0.115 R)
• M9: 5,398,538 km (0.104 R)
• M10: 7,369,341 km (0.118 R)
• M11: 8,977,368 km (0.116 R)
• M12: 9,434,390 km (0.119 R)
• M13: 13,027,581 km (0.108 R)
• M14: 13,345,177 km (0.082 R)
• M15: 13,722,014 km (0.087 R)
• M16: 14,328,783 km (0.066 R)
• M17: 21,708,446 km (0.117 R)
• M18: 24,560,829 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339

Radius: 3.9

Gravity: 22.29 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 8.44 AU - 9.04 AU

Year: 17835 Days

Day: 23.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,944,109 km

• M1: 102,624 km (0.052 R)
• M2: 649,853 km (0.103 R)
• M3: 1,132,905 km (0.086 R)
• M4: 1,324,689 km (0.093 R)
• M5: 1,464,264 km (0.117 R)
• M6: 3,944,597 km (0.066 R)
• M7: 11,665,941 km (0.108 R)
• M8: 12,446,842 km (0.111 R)
• M9: 13,326,029 km (0.09 R)
• M10: 19,736,597 km (0.059 R)
• M11: 20,929,490 km (0.091 R)
• M12: 27,101,300 km (0.078 R)
• M13: 27,308,343 km (0.067 R)
• M14: 27,830,589 km (0.038 R)
• M15: 31,903,541 km (0.082 R)
• M16: 34,021,398 km (0.099 R)
• M17: 47,063,789 km (0.049 R)
• M18: 55,094,053 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381.1

Radius: 4.9

Gravity: 15.87 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 8.1 AU - 11.48 AU

Year: 21144 Days

Day: 20.5 Hours

Environment

Temp: -243 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,944,109 km

• M1: 61,186 km (0.071 R)
• M2: 213,626 km (0.105 R)
• M3: 603,777 km (0.098 R)
• M4: 3,621,166 km (0.113 R)
• M5: 3,821,627 km (0.117 R)
• M6: 4,403,114 km (0.115 R)
• M7: 6,132,466 km (0.096 R)
• M8: 6,335,320 km (0.099 R)
• M9: 7,147,188 km (0.082 R)
• M10: 7,326,556 km (0.077 R)
• M11: 7,694,417 km (0.045 R)
• M12: 8,122,716 km (0.057 R)
• M13: 8,975,124 km (0.054 R)
• M14: 9,183,963 km (0.109 R)
• M15: 9,720,570 km (0.099 R)
• M16: 16,517,699 km (0.092 R)
• M17: 17,633,849 km (0.116 R)
• M18: 23,579,018 km (0.104 R)
• M19: 23,877,017 km (0.103 R)
• M20: 24,684,397 km (0.078 R)
• M21: 31,929,571 km (0.069 R)
• M22: 40,048,098 km (0.03 R)
• M23: 42,639,582 km (0.05 R)
• M24: 49,440,151 km (0.106 R)
• M25: 49,765,377 km (0.115 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: 513 - 17,796 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit