🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959

Radius: 12

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.65 AU - 0.89 AU

Year: 436 Days

Day: 7 Hours

Environment

Temp: -137 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,101,088 km

• M1: 150,795 km (0.065 R)
• M2: 565,031 km (0.075 R)
• M3: 1,314,666 km (0.063 R)
• M4: 1,836,164 km (0.115 R)
• M5: 2,292,587 km (0.036 R)
• M6: 2,739,137 km (0.096 R)
• M7: 3,512,708 km (0.112 R)
• M8: 3,904,056 km (0.041 R)
• M9: 4,412,090 km (0.069 R)
• M10: 5,374,304 km (0.071 R)
• M11: 6,170,164 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.7

Radius: 13.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.96 AU - 1.18 AU

Year: 715 Days

Day: 12.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,101,088 km

• M1: 169,494 km (0.114 R)
• M2: 628,311 km (0.075 R)
• M3: 1,053,468 km (0.08 R)
• M4: 1,564,345 km (0.114 R)
• M5: 2,129,077 km (0.077 R)
• M6: 3,314,341 km (0.083 R)
• M7: 4,067,267 km (0.113 R)
• M8: 4,557,499 km (0.076 R)
• M9: 5,691,750 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.9

Radius: 14.5

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1 AU - 1.24 AU

Year: 765 Days

Day: 9 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,101,088 km

• M1: 181,313 km (0.093 R)
• M2: 716,424 km (0.049 R)
• M3: 1,240,615 km (0.085 R)
• M4: 1,798,914 km (0.111 R)
• M5: 3,441,948 km (0.043 R)
• M6: 5,458,378 km (0.064 R)
• M7: 6,676,852 km (0.089 R)
• M8: 8,741,901 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.8

Radius: 8.1

Gravity: 13.7 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.23 AU - 1.27 AU

Year: 902 Days

Day: 10.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 136.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,101,088 km

• M1: 102,325 km (0.114 R)
• M2: 371,900 km (0.101 R)
• M3: 688,150 km (0.067 R)
• M4: 1,066,334 km (0.033 R)
• M5: 1,338,452 km (0.09 R)
• M6: 2,474,199 km (0.113 R)
• M7: 2,880,507 km (0.06 R)
• M8: 3,231,613 km (0.042 R)
• M9: 3,491,166 km (0.117 R)
• M10: 3,764,630 km (0.112 R)
• M11: 4,101,974 km (0.068 R)
• M12: 4,407,004 km (0.104 R)
• M13: 5,334,810 km (0.118 R)
• M14: 5,761,164 km (0.11 R)
• M15: 6,166,424 km (0.086 R)
• M16: 6,636,162 km (0.04 R)
• M17: 6,915,311 km (0.105 R)
• M18: 7,348,547 km (0.117 R)
• M19: 8,058,538 km (0.109 R)
• M20: 9,094,055 km (0.106 R)
• M21: 9,497,221 km (0.116 R)
• M22: 10,002,562 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.4

Radius: 8.8

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.27 AU - 1.85 AU

Year: 1258 Days

Day: 13 Hours

Environment

Temp: -175 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,101,088 km

• M1: 109,506 km (0.061 R)
• M2: 546,780 km (0.103 R)
• M3: 1,280,707 km (0.115 R)
• M4: 3,247,620 km (0.059 R)
• M5: 3,847,059 km (0.117 R)
• M6: 4,834,405 km (0.084 R)
• M7: 5,185,212 km (0.116 R)
• M8: 5,616,054 km (0.087 R)
• M9: 6,182,282 km (0.06 R)
• M10: 6,882,250 km (0.12 R)
• M11: 7,201,641 km (0.107 R)
• M12: 7,660,159 km (0.08 R)
• M13: 8,805,929 km (0.062 R)
• M14: 9,661,330 km (0.104 R)
• M15: 10,156,349 km (0.116 R)
• M16: 11,264,420 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.8

Radius: 14.6

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.42 AU - 2.12 AU

Year: 1520 Days

Day: 6.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,101,088 km

• M1: 181,612 km (0.051 R)
• M2: 655,089 km (0.078 R)
• M3: 1,268,889 km (0.092 R)
• M4: 1,799,064 km (0.113 R)
• M5: 2,680,195 km (0.097 R)
• M6: 3,162,200 km (0.054 R)
• M7: 3,686,092 km (0.095 R)
• M8: 4,696,326 km (0.109 R)
• M9: 5,236,075 km (0.056 R)
• M10: 5,750,393 km (0.094 R)
• M11: 6,393,215 km (0.055 R)
• M12: 8,240,898 km (0.087 R)
• M13: 10,061,654 km (0.088 R)
• M14: 11,101,508 km (0.071 R)
• M15: 11,593,985 km (0.106 R)
• M16: 12,928,098 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.3

Radius: 13.8

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.19 AU - 2.41 AU

Year: 2252 Days

Day: 13.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,101,088 km

• M1: 171,738 km (0.068 R)
• M2: 680,970 km (0.06 R)
• M3: 1,148,313 km (0.092 R)
• M4: 1,600,697 km (0.102 R)
• M5: 2,227,662 km (0.089 R)
• M6: 3,122,856 km (0.115 R)
• M7: 3,684,745 km (0.091 R)
• M8: 4,382,170 km (0.054 R)
• M9: 5,108,767 km (0.078 R)
• M10: 5,602,739 km (0.113 R)
• M11: 6,505,114 km (0.071 R)
• M12: 8,116,283 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.4

Radius: 14.3

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 2.01 AU - 2.85 AU

Year: 2446 Days

Day: 9.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,101,088 km

• M1: 179,966 km (0.077 R)
• M2: 628,311 km (0.084 R)
• M3: 1,222,963 km (0.054 R)
• M4: 2,063,403 km (0.094 R)
• M5: 2,526,110 km (0.1 R)
• M6: 3,058,828 km (0.058 R)
• M7: 3,724,089 km (0.101 R)
• M8: 4,867,765 km (0.105 R)
• M9: 5,421,277 km (0.037 R)
• M10: 7,339,720 km (0.105 R)
• M11: 7,810,804 km (0.088 R)
• M12: 8,470,231 km (0.12 R)
• M13: 8,989,186 km (0.118 R)
• M14: 10,834,027 km (0.098 R)
• M15: 11,824,814 km (0.097 R)
• M16: 13,986,503 km (0.119 R)
• M17: 16,032,254 km (0.103 R)
• M18: 16,667,148 km (0.027 R)
• M19: 18,963,475 km (0.101 R)
• M20: 19,854,181 km (0.091 R)

Planet 9 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.8

Radius: 8.7

Gravity: 10.91 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.04 AU - 3.1 AU

Year: 2660 Days

Day: 6.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,101,088 km

• M1: 108,758 km (0.108 R)
• M2: 440,117 km (0.091 R)
• M3: 789,727 km (0.095 R)
• M4: 1,269,188 km (0.03 R)
• M5: 1,544,448 km (0.062 R)
• M6: 2,654,315 km (0.054 R)
• M7: 3,026,066 km (0.069 R)
• M8: 4,246,635 km (0.1 R)
• M9: 6,593,227 km (0.089 R)
• M10: 8,580,635 km (0.115 R)
• M11: 9,250,983 km (0.099 R)
• M12: 9,842,343 km (0.057 R)
• M13: 11,556,436 km (0.081 R)
• M14: 20,048,508 km (0.048 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 13,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit