🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.9

Radius: 14.3

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.57 AU - 0.83 AU

Year: 384 Days

Day: 8.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,868,375 km

• M1: 177,872 km (0.069 R)
• M2: 663,317 km (0.119 R)
• M3: 1,211,743 km (0.111 R)
• M4: 1,838,259 km (0.077 R)
• M5: 2,347,191 km (0.086 R)
• M6: 2,854,627 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.5

Radius: 14.3

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.23 AU - 1.73 AU

Year: 1181 Days

Day: 11.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 29,868,375 km

• M1: 177,872 km (0.047 R)
• M2: 661,671 km (0.105 R)
• M3: 1,234,631 km (0.112 R)
• M4: 2,264,313 km (0.06 R)
• M5: 3,705,988 km (0.113 R)
• M6: 4,186,496 km (0.049 R)
• M7: 4,633,644 km (0.07 R)
• M8: 5,439,678 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610

Radius: 11.5

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.29 AU - 1.85 AU

Year: 1291 Days

Day: 10.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,868,375 km

• M1: 143,016 km (0.058 R)
• M2: 654,790 km (0.1 R)
• M3: 1,036,115 km (0.093 R)
• M4: 1,429,557 km (0.111 R)
• M5: 1,788,293 km (0.12 R)
• M6: 2,286,155 km (0.086 R)
• M7: 2,719,240 km (0.116 R)
• M8: 3,121,808 km (0.103 R)
• M9: 4,116,185 km (0.058 R)
• M10: 5,169,654 km (0.094 R)
• M11: 6,032,684 km (0.114 R)
• M12: 6,580,960 km (0.115 R)
• M13: 7,594,336 km (0.063 R)
• M14: 8,070,955 km (0.115 R)
• M15: 10,760,724 km (0.079 R)
• M16: 11,193,361 km (0.055 R)
• M17: 11,568,403 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.7

Radius: 10.3

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.27 AU - 1.91 AU

Year: 1315 Days

Day: 8.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,868,375 km

• M1: 131,497 km (0.098 R)
• M2: 631,752 km (0.037 R)
• M3: 1,094,757 km (0.108 R)
• M4: 1,513,182 km (0.073 R)
• M5: 1,886,878 km (0.08 R)
• M6: 2,668,826 km (0.048 R)
• M7: 3,167,286 km (0.058 R)
• M8: 5,729,748 km (0.116 R)
• M9: 8,085,017 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.3

Radius: 12.9

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.73 AU - 2.39 AU

Year: 1940 Days

Day: 9.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,868,375 km

• M1: 160,519 km (0.113 R)
• M2: 738,415 km (0.067 R)
• M3: 1,372,261 km (0.069 R)
• M4: 2,174,255 km (0.112 R)
• M5: 2,940,496 km (0.106 R)
• M6: 3,810,407 km (0.112 R)
• M7: 4,968,594 km (0.076 R)
• M8: 5,732,291 km (0.117 R)
• M9: 8,740,854 km (0.064 R)
• M10: 9,175,436 km (0.084 R)
• M11: 10,021,113 km (0.099 R)
• M12: 10,918,101 km (0.113 R)
• M13: 12,247,578 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491

Radius: 7

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 6.9 AU - 7 AU

Year: 12020 Days

Day: 20.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 29,868,375 km

• M1: 88,712 km (0.071 R)
• M2: 535,411 km (0.094 R)
• M3: 799,002 km (0.119 R)
• M4: 1,420,282 km (0.112 R)
• M5: 1,764,208 km (0.099 R)
• M6: 2,764,269 km (0.09 R)
• M7: 3,115,974 km (0.075 R)
• M8: 3,521,983 km (0.103 R)
• M9: 3,989,626 km (0.104 R)
• M10: 5,507,745 km (0.05 R)
• M11: 6,893,470 km (0.119 R)
• M12: 7,293,794 km (0.106 R)
• M13: 11,237,493 km (0.067 R)
• M14: 11,735,803 km (0.034 R)
• M15: 12,776,705 km (0.113 R)
• M16: 13,877,746 km (0.1 R)
• M17: 14,974,448 km (0.082 R)
• M18: 18,381,689 km (0.069 R)
• M19: 18,610,274 km (0.113 R)
• M20: 26,388,466 km (0.088 R)
• M21: 28,777,993 km (0.117 R)
• M22: 31,091,973 km (0.055 R)
• M23: 37,658,122 km (0.065 R)
• M24: 38,523,247 km (0.058 R)
• M25: 40,421,494 km (0.08 R)
• M26: 43,182,622 km (0.042 R)
• M27: 43,858,206 km (0.05 R)
• M28: 44,266,758 km (0.097 R)
• M29: 47,627,923 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 82.1

Radius: 3.3

Gravity: 7.54 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 6.98 AU - 8.56 AU

Year: 14208 Days

Day: 16.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,868,375 km

• M1: 43,982 km (0.096 R)
• M2: 152,141 km (0.043 R)
• M3: 309,518 km (0.072 R)
• M4: 2,330,735 km (0.059 R)
• M5: 2,832,187 km (0.092 R)
• M6: 3,769,418 km (0.113 R)
• M7: 4,138,924 km (0.065 R)
• M8: 7,642,207 km (0.107 R)
• M9: 13,605,178 km (0.027 R)
• M10: 15,542,920 km (0.115 R)
• M11: 24,815,145 km (0.091 R)
• M12: 28,114,227 km (0.099 R)
• M13: 28,807,464 km (0.095 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: 497 - 16,056 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit