🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.8

Radius: 10.6

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.79 AU - 0.91 AU

Year: 551 Days

Day: 14.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,323,578 km

• M1: 131,796 km (0.052 R)
• M2: 514,766 km (0.066 R)
• M3: 943,065 km (0.062 R)
• M4: 1,355,806 km (0.104 R)
• M5: 1,694,645 km (0.039 R)
• M6: 2,558,423 km (0.099 R)
• M7: 3,051,198 km (0.111 R)
• M8: 3,974,217 km (0.09 R)
• M9: 4,536,705 km (0.049 R)
• M10: 5,487,399 km (0.039 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.9

Radius: 11.8

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.69 AU - 1.11 AU

Year: 600 Days

Day: 14.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 70.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,323,578 km

• M1: 146,756 km (0.092 R)
• M2: 667,356 km (0.045 R)
• M3: 1,217,278 km (0.095 R)
• M4: 1,952,103 km (0.043 R)
• M5: 2,472,404 km (0.067 R)
• M6: 3,059,875 km (0.106 R)
• M7: 4,189,638 km (0.087 R)
• M8: 5,219,320 km (0.118 R)
• M9: 5,765,502 km (0.083 R)
• M10: 7,820,827 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.1

Radius: 14.8

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.12 AU - 1.26 AU

Year: 912 Days

Day: 10.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,323,578 km

• M1: 184,005 km (0.087 R)
• M2: 702,661 km (0.032 R)
• M3: 1,188,705 km (0.094 R)
• M4: 1,754,035 km (0.104 R)
• M5: 2,330,286 km (0.056 R)
• M6: 2,966,975 km (0.118 R)
• M7: 3,435,216 km (0.102 R)
• M8: 4,198,315 km (0.055 R)
• M9: 5,304,142 km (0.116 R)
• M10: 8,625,514 km (0.07 R)
• M11: 9,918,339 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.8

Radius: 8.6

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.8 AU - 1.88 AU

Year: 1754 Days

Day: 5 Hours

Environment

Temp: -190 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,323,578 km

• M1: 107,262 km (0.105 R)
• M2: 395,986 km (0.084 R)
• M3: 892,950 km (0.1 R)
• M4: 2,481,230 km (0.086 R)
• M5: 2,779,828 km (0.091 R)
• M6: 4,906,810 km (0.117 R)
• M7: 7,747,075 km (0.103 R)
• M8: 11,006,813 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.3

Radius: 8.9

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.98 AU - 4.02 AU

Year: 4603 Days

Day: 13.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,323,578 km

• M1: 111,899 km (0.102 R)
• M2: 548,276 km (0.112 R)
• M3: 1,035,965 km (0.098 R)
• M4: 1,356,703 km (0.105 R)
• M5: 1,634,806 km (0.115 R)
• M6: 2,160,941 km (0.084 R)
• M7: 4,578,443 km (0.063 R)
• M8: 14,782,364 km (0.084 R)
• M9: 16,920,866 km (0.081 R)
• M10: 18,875,063 km (0.108 R)
• M11: 26,658,041 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 815.3

Radius: 7.7

Gravity: 13.75 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.95 AU - 8.41 AU

Year: 13524 Days

Day: 20 Hours

Environment

Temp: -236 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,323,578 km

• M1: 96,491 km (0.088 R)
• M2: 428,149 km (0.074 R)
• M3: 890,556 km (0.073 R)
• M4: 1,546,692 km (0.071 R)
• M5: 1,838,259 km (0.105 R)
• M6: 3,111,935 km (0.101 R)
• M7: 5,524,799 km (0.096 R)
• M8: 6,172,558 km (0.092 R)
• M9: 6,535,482 km (0.097 R)
• M10: 7,437,707 km (0.092 R)
• M11: 7,802,427 km (0.066 R)
• M12: 8,227,135 km (0.088 R)
• M13: 8,968,841 km (0.102 R)
• M14: 10,247,305 km (0.108 R)
• M15: 16,052,300 km (0.051 R)
• M16: 16,431,681 km (0.114 R)
• M17: 17,766,243 km (0.081 R)
• M18: 18,418,490 km (0.117 R)
• M19: 19,171,416 km (0.101 R)
• M20: 21,370,505 km (0.111 R)
• M21: 22,389,266 km (0.077 R)
• M22: 24,723,890 km (0.078 R)
• M23: 25,434,181 km (0.115 R)
• M24: 27,864,249 km (0.077 R)
• M25: 28,192,317 km (0.118 R)
• M26: 28,744,632 km (0.086 R)
• M27: 31,143,584 km (0.076 R)
• M28: 32,693,717 km (0.037 R)
• M29: 47,145,171 km (0.03 R)
• M30: 48,079,858 km (0.115 R)
• M31: 49,185,835 km (0.118 R)
• M32: 51,284,843 km (0.048 R)
• M33: 52,939,545 km (0.112 R)
• M34: 57,584,559 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 184

Radius: 4.2

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 6.91 AU - 10.01 AU

Year: 17297 Days

Day: 17.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,323,578 km

• M1: 52,210 km (0.09 R)
• M2: 259,552 km (0.118 R)
• M3: 683,064 km (0.081 R)
• M4: 2,060,561 km (0.035 R)
• M5: 2,553,037 km (0.066 R)
• M6: 5,483,809 km (0.087 R)
• M7: 5,784,800 km (0.074 R)
• M8: 6,604,297 km (0.117 R)
• M9: 6,983,677 km (0.114 R)
• M10: 8,647,505 km (0.106 R)
• M11: 10,155,601 km (0.093 R)
• M12: 11,666,091 km (0.113 R)
• M13: 12,389,546 km (0.113 R)
• M14: 14,421,983 km (0.073 R)
• M15: 16,390,840 km (0.113 R)
• M16: 18,981,277 km (0.086 R)
• M17: 27,775,837 km (0.087 R)
• M18: 42,980,815 km (0.111 R)
• M19: 43,373,060 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.9

Radius: 4.8

Gravity: 15.23 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 9.51 AU - 10.49 AU

Year: 22228 Days

Day: 24.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,323,578 km

• M1: 76,744 km (0.101 R)
• M2: 363,672 km (0.084 R)
• M3: 764,146 km (0.104 R)
• M4: 1,701,377 km (0.105 R)
• M5: 1,985,164 km (0.119 R)
• M6: 2,198,191 km (0.104 R)
• M7: 2,469,562 km (0.108 R)
• M8: 3,365,503 km (0.119 R)
• M9: 4,557,798 km (0.057 R)
• M10: 5,849,726 km (0.07 R)
• M11: 6,288,795 km (0.118 R)
• M12: 7,322,517 km (0.092 R)
• M13: 10,508,652 km (0.118 R)
• M14: 10,977,342 km (0.095 R)
• M15: 14,946,323 km (0.093 R)
• M16: 22,253,880 km (0.104 R)
• M17: 22,445,216 km (0.06 R)
• M18: 23,418,350 km (0.083 R)
• M19: 23,915,314 km (0.051 R)
• M20: 25,136,781 km (0.032 R)
• M21: 34,359,639 km (0.044 R)
• M22: 38,880,187 km (0.12 R)
• M23: 44,535,137 km (0.057 R)
• M24: 46,223,947 km (0.111 R)
• M25: 60,550,187 km (0.1 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 181 - 13,184 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit