🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.54 AU - 0.6 AU

Year: 282 Days

Day: 46.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.4

Radius: 10.3

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.58 AU - 0.82 AU

Year: 384 Days

Day: 10.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,139,105 km

• M1: 128,205 km (0.1 R)
• M2: 491,579 km (0.116 R)
• M3: 900,729 km (0.062 R)
• M4: 1,587,383 km (0.073 R)
• M5: 2,000,722 km (0.108 R)
• M6: 2,766,813 km (0.118 R)
• M7: 3,218,000 km (0.087 R)
• M8: 4,129,500 km (0.109 R)
• M9: 4,512,919 km (0.108 R)
• M10: 4,951,091 km (0.037 R)
• M11: 5,367,871 km (0.025 R)
• M12: 5,721,670 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.9

Radius: 14.8

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.71 AU - 1.13 AU

Year: 579 Days

Day: 11.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 16,139,105 km

• M1: 184,005 km (0.108 R)
• M2: 656,286 km (0.091 R)
• M3: 1,413,251 km (0.095 R)
• M4: 2,224,670 km (0.102 R)
• M5: 2,738,539 km (0.069 R)
• M6: 3,452,120 km (0.111 R)
• M7: 4,657,879 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.7

Radius: 13

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.84 AU - 1.22 AU

Year: 686 Days

Day: 11.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 16,139,105 km

• M1: 161,715 km (0.093 R)
• M2: 592,707 km (0.095 R)
• M3: 1,314,965 km (0.059 R)
• M4: 2,067,592 km (0.056 R)
• M5: 4,060,834 km (0.103 R)
• M6: 4,854,152 km (0.119 R)
• M7: 5,271,829 km (0.054 R)
• M8: 6,235,389 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.6

Radius: 13.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.3 AU - 1.58 AU

Year: 1134 Days

Day: 7.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 16,139,105 km

• M1: 171,589 km (0.116 R)
• M2: 880,683 km (0.058 R)
• M3: 1,374,356 km (0.104 R)
• M4: 2,222,127 km (0.081 R)
• M5: 3,049,253 km (0.073 R)
• M6: 3,617,725 km (0.069 R)
• M7: 4,820,642 km (0.03 R)
• M8: 5,636,997 km (0.097 R)
• M9: 6,727,117 km (0.087 R)
• M10: 7,396,568 km (0.039 R)
• M11: 8,510,922 km (0.043 R)
• M12: 9,439,775 km (0.088 R)
• M13: 9,974,288 km (0.065 R)
• M14: 10,782,267 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.2

Radius: 10.1

Gravity: 7.85 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 1.3 AU - 1.72 AU

Year: 1217 Days

Day: 12.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 16,139,105 km

• M1: 126,111 km (0.102 R)
• M2: 453,880 km (0.087 R)
• M3: 815,458 km (0.085 R)
• M4: 1,763,908 km (0.092 R)
• M5: 2,135,210 km (0.058 R)
• M6: 2,647,434 km (0.119 R)
• M7: 2,995,697 km (0.052 R)
• M8: 3,901,812 km (0.111 R)
• M9: 4,355,243 km (0.091 R)
• M10: 5,494,281 km (0.072 R)
• M11: 6,065,146 km (0.117 R)
• M12: 7,773,105 km (0.074 R)
• M13: 8,665,457 km (0.074 R)
• M14: 9,196,529 km (0.1 R)
• M15: 12,404,207 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.9

Radius: 12.8

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.36 AU - 2.08 AU

Year: 1480 Days

Day: 11.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 16,139,105 km

• M1: 159,172 km (0.115 R)
• M2: 579,542 km (0.076 R)
• M3: 1,153,100 km (0.085 R)
• M4: 1,941,032 km (0.065 R)
• M5: 2,511,150 km (0.094 R)
• M6: 2,979,391 km (0.086 R)
• M7: 3,521,534 km (0.106 R)
• M8: 5,902,534 km (0.093 R)
• M9: 6,310,936 km (0.032 R)
• M10: 7,059,075 km (0.084 R)
• M11: 7,598,824 km (0.098 R)
• M12: 11,859,820 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.4

Radius: 9.8

Gravity: 9.52 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.54 AU - 2.22 AU

Year: 1691 Days

Day: 11.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 16,139,105 km

• M1: 121,922 km (0.105 R)
• M2: 576,251 km (0.116 R)
• M3: 973,284 km (0.047 R)
• M4: 1,422,227 km (0.089 R)
• M5: 1,816,866 km (0.091 R)
• M6: 2,148,076 km (0.115 R)
• M7: 3,361,614 km (0.102 R)
• M8: 4,360,180 km (0.082 R)
• M9: 4,726,694 km (0.09 R)
• M10: 5,429,505 km (0.042 R)
• M11: 5,952,050 km (0.091 R)
• M12: 6,301,810 km (0.056 R)
• M13: 6,879,108 km (0.064 R)
• M14: 7,520,135 km (0.071 R)
• M15: 8,602,626 km (0.079 R)
• M16: 9,683,321 km (0.066 R)
• M17: 10,168,167 km (0.103 R)
• M18: 10,669,320 km (0.104 R)
• M19: 11,375,572 km (0.111 R)
• M20: 11,682,098 km (0.106 R)
• M21: 13,298,503 km (0.088 R)
• M22: 14,028,840 km (0.076 R)
• M23: 15,475,750 km (0.111 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: 458 - 13,071 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit