🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.47 AU - 0.59 AU

Year: 253 Days

Day: 21.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.4

Radius: 12

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.13 AU - 1.35 AU

Year: 906 Days

Day: 9.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,117,027 km

• M1: 149,299 km (0.097 R)
• M2: 625,917 km (0.076 R)
• M3: 1,024,147 km (0.105 R)
• M4: 1,434,644 km (0.118 R)
• M5: 2,468,963 km (0.093 R)
• M6: 3,069,449 km (0.089 R)
• M7: 3,691,178 km (0.102 R)
• M8: 4,167,348 km (0.099 R)
• M9: 4,563,932 km (0.107 R)
• M10: 5,300,253 km (0.112 R)
• M11: 5,747,101 km (0.071 R)
• M12: 6,240,176 km (0.115 R)
• M13: 6,850,984 km (0.089 R)
• M14: 8,091,300 km (0.06 R)
• M15: 9,475,828 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.2

Radius: 13.8

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.11 AU - 1.41 AU

Year: 928 Days

Day: 8.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,117,027 km

• M1: 172,187 km (0.057 R)
• M2: 642,672 km (0.098 R)
• M3: 1,086,978 km (0.116 R)
• M4: 1,838,707 km (0.111 R)
• M5: 2,334,026 km (0.107 R)
• M6: 3,813,998 km (0.03 R)
• M7: 4,490,180 km (0.068 R)
• M8: 4,922,368 km (0.112 R)
• M9: 7,795,994 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.5

Radius: 8

Gravity: 11.68 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.02 AU - 2.04 AU

Year: 1897 Days

Day: 11.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,117,027 km

• M1: 99,483 km (0.088 R)
• M2: 414,685 km (0.113 R)
• M3: 747,391 km (0.08 R)
• M4: 1,273,826 km (0.114 R)
• M5: 1,696,440 km (0.083 R)
• M6: 2,123,841 km (0.081 R)
• M7: 2,456,397 km (0.115 R)
• M8: 2,750,058 km (0.116 R)
• M9: 3,650,338 km (0.066 R)
• M10: 4,226,589 km (0.112 R)
• M11: 4,526,532 km (0.079 R)
• M12: 4,948,548 km (0.115 R)
• M13: 5,282,151 km (0.084 R)
• M14: 5,822,648 km (0.068 R)
• M15: 6,503,767 km (0.038 R)
• M16: 7,755,303 km (0.113 R)
• M17: 8,611,003 km (0.032 R)
• M18: 11,593,685 km (0.07 R)
• M19: 12,465,243 km (0.113 R)
• M20: 13,000,504 km (0.117 R)
• M21: 14,926,128 km (0.1 R)
• M22: 16,101,069 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.9

Radius: 8.6

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.1 AU - 4.72 AU

Year: 6075 Days

Day: 12.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,117,027 km

• M1: 106,962 km (0.108 R)
• M2: 497,862 km (0.079 R)
• M3: 795,711 km (0.093 R)
• M4: 1,146,069 km (0.07 R)
• M5: 1,561,951 km (0.107 R)
• M6: 2,260,723 km (0.082 R)
• M7: 3,929,936 km (0.103 R)
• M8: 4,463,851 km (0.084 R)
• M9: 5,440,875 km (0.092 R)
• M10: 6,854,574 km (0.064 R)
• M11: 7,923,750 km (0.117 R)
• M12: 11,649,934 km (0.111 R)
• M13: 12,443,551 km (0.051 R)
• M14: 13,167,006 km (0.118 R)
• M15: 14,082,844 km (0.096 R)
• M16: 14,868,532 km (0.099 R)
• M17: 16,343,567 km (0.084 R)
• M18: 18,702,277 km (0.11 R)
• M19: 24,640,116 km (0.064 R)
• M20: 25,532,617 km (0.087 R)
• M21: 30,137,239 km (0.032 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.5

Radius: 3.4

Gravity: 6.96 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.82 AU - 7.54 AU

Year: 10078 Days

Day: 23.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 35,117,027 km

• M1: 42,336 km (0.063 R)
• M2: 239,357 km (0.118 R)
• M3: 744,100 km (0.089 R)
• M4: 896,690 km (0.088 R)
• M5: 1,061,098 km (0.084 R)
• M6: 3,751,915 km (0.114 R)
• M7: 4,591,458 km (0.115 R)
• M8: 5,738,874 km (0.086 R)
• M9: 7,096,175 km (0.115 R)
• M10: 7,747,973 km (0.106 R)
• M11: 8,872,201 km (0.118 R)
• M12: 9,473,136 km (0.117 R)
• M13: 11,179,150 km (0.057 R)
• M14: 16,650,393 km (0.104 R)
• M15: 17,446,552 km (0.068 R)
• M16: 20,950,733 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160.9

Radius: 5.8

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.13 AU - 8.47 AU

Year: 12939 Days

Day: 18.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,117,027 km

• M1: 131,197 km (0.092 R)
• M2: 509,680 km (0.095 R)
• M3: 808,876 km (0.117 R)
• M4: 1,018,313 km (0.096 R)
• M5: 2,199,238 km (0.113 R)
• M6: 2,417,502 km (0.061 R)
• M7: 3,037,136 km (0.088 R)
• M8: 3,483,237 km (0.094 R)
• M9: 4,693,633 km (0.082 R)
• M10: 4,943,013 km (0.053 R)
• M11: 6,460,234 km (0.07 R)
• M12: 7,909,838 km (0.055 R)
• M13: 10,101,596 km (0.081 R)
• M14: 13,930,554 km (0.055 R)
• M15: 15,334,829 km (0.078 R)
• M16: 20,038,036 km (0.064 R)
• M17: 20,401,410 km (0.055 R)
• M18: 22,207,505 km (0.076 R)
• M19: 24,117,421 km (0.114 R)
• M20: 25,196,470 km (0.093 R)
• M21: 29,646,857 km (0.091 R)
• M22: 30,691,649 km (0.083 R)
• M23: 32,754,155 km (0.095 R)
• M24: 33,461,603 km (0.119 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: 243 - 13,116 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit