🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.54

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.62 AU - 0.64 AU

Year: 323 Days

Day: 45.8 Hours

Environment

Temp: -138 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,102,069 km

• M1: 611,855 km (0.07 R)
• M2: 689,796 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.9

Radius: 14.1

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.59 AU - 0.99 AU

Year: 453 Days

Day: 12.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,102,069 km

• M1: 175,329 km (0.107 R)
• M2: 735,722 km (0.051 R)
• M3: 1,437,187 km (0.106 R)
• M4: 2,018,973 km (0.118 R)
• M5: 2,658,953 km (0.054 R)
• M6: 3,352,039 km (0.056 R)
• M7: 4,149,995 km (0.075 R)
• M8: 4,601,930 km (0.064 R)
• M9: 5,460,921 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.5

Radius: 11.9

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.66 AU - 0.94 AU

Year: 462 Days

Day: 10.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,102,069 km

• M1: 157,676 km (0.118 R)
• M2: 544,985 km (0.026 R)
• M3: 1,087,427 km (0.119 R)
• M4: 1,553,125 km (0.085 R)
• M5: 2,395,959 km (0.047 R)
• M6: 3,335,883 km (0.082 R)
• M7: 3,840,177 km (0.12 R)
• M8: 4,706,798 km (0.105 R)
• M9: 5,296,213 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.9

Radius: 11.6

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.24 AU - 1.38 AU

Year: 968 Days

Day: 9.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 60.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,102,069 km

• M1: 144,362 km (0.115 R)
• M2: 507,885 km (0.087 R)
• M3: 977,772 km (0.051 R)
• M4: 1,404,275 km (0.11 R)
• M5: 2,041,562 km (0.08 R)
• M6: 2,888,884 km (0.115 R)
• M7: 3,613,237 km (0.09 R)
• M8: 4,003,389 km (0.063 R)
• M9: 4,488,535 km (0.096 R)
• M10: 5,233,831 km (0.077 R)
• M11: 5,977,482 km (0.06 R)
• M12: 7,748,422 km (0.068 R)
• M13: 8,273,061 km (0.12 R)
• M14: 8,741,303 km (0.107 R)
• M15: 9,172,444 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 8.3

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.63 AU - 2.85 AU

Year: 2928 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,102,069 km

• M1: 104,120 km (0.115 R)
• M2: 461,509 km (0.074 R)
• M3: 778,507 km (0.074 R)
• M4: 1,828,086 km (0.089 R)
• M5: 2,118,755 km (0.078 R)
• M6: 3,105,203 km (0.105 R)
• M7: 3,505,228 km (0.11 R)
• M8: 4,198,015 km (0.091 R)
• M9: 5,528,240 km (0.071 R)
• M10: 6,141,890 km (0.099 R)
• M11: 6,592,778 km (0.04 R)
• M12: 7,065,507 km (0.081 R)
• M13: 8,108,205 km (0.114 R)
• M14: 8,931,442 km (0.103 R)
• M15: 9,282,398 km (0.093 R)
• M16: 9,543,447 km (0.115 R)
• M17: 9,910,261 km (0.041 R)
• M18: 14,679,441 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.9

Radius: 11.6

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.29 AU - 3.19 AU

Year: 2928 Days

Day: 14.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,102,069 km

• M1: 144,212 km (0.113 R)
• M2: 517,609 km (0.095 R)
• M3: 899,532 km (0.086 R)
• M4: 1,339,649 km (0.103 R)
• M5: 1,705,715 km (0.099 R)
• M6: 2,073,426 km (0.1 R)
• M7: 2,544,959 km (0.116 R)
• M8: 3,295,342 km (0.061 R)
• M9: 3,924,999 km (0.039 R)
• M10: 4,691,240 km (0.106 R)
• M11: 7,121,158 km (0.045 R)
• M12: 7,622,460 km (0.086 R)
• M13: 8,289,368 km (0.092 R)
• M14: 8,784,985 km (0.116 R)
• M15: 9,518,165 km (0.087 R)
• M16: 11,002,624 km (0.118 R)
• M17: 11,387,988 km (0.096 R)
• M18: 12,259,994 km (0.095 R)
• M19: 12,636,233 km (0.074 R)
• M20: 13,058,997 km (0.097 R)

Asteroid Belt

Center: 6.87 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 495.4

Radius: 6.3

Gravity: 12.48 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.69 AU - 12.29 AU

Year: 23524 Days

Day: 18.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,102,069 km

• M1: 81,830 km (0.106 R)
• M2: 282,590 km (0.115 R)
• M3: 575,503 km (0.045 R)
• M4: 5,873,212 km (0.07 R)
• M5: 8,225,938 km (0.084 R)
• M6: 8,433,580 km (0.106 R)
• M7: 9,355,103 km (0.109 R)
• M8: 9,927,614 km (0.099 R)
• M9: 12,049,360 km (0.082 R)
• M10: 15,771,505 km (0.047 R)
• M11: 16,254,407 km (0.097 R)
• M12: 18,728,008 km (0.096 R)
• M13: 18,997,434 km (0.051 R)
• M14: 22,234,283 km (0.056 R)
• M15: 23,982,633 km (0.101 R)
• M16: 24,406,893 km (0.084 R)
• M17: 26,491,240 km (0.106 R)
• M18: 36,853,735 km (0.115 R)
• M19: 53,853,588 km (0.095 R)
• M20: 64,643,633 km (0.107 R)
• M21: 65,259,229 km (0.092 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 15,282 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit