🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.3

Radius: 9.4

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.66 AU - 0.78 AU

Year: 429 Days

Day: 6.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,868,622 km

• M1: 117,135 km (0.089 R)
• M2: 457,171 km (0.109 R)
• M3: 873,203 km (0.096 R)
• M4: 1,197,381 km (0.089 R)
• M5: 1,490,743 km (0.118 R)
• M6: 1,907,373 km (0.075 R)
• M7: 2,219,733 km (0.099 R)
• M8: 2,739,885 km (0.109 R)
• M9: 3,339,324 km (0.104 R)
• M10: 3,875,333 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.7

Radius: 9.5

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.6 AU - 0.92 AU

Year: 466 Days

Day: 6.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,868,622 km

• M1: 118,182 km (0.107 R)
• M2: 458,368 km (0.089 R)
• M3: 761,752 km (0.057 R)
• M4: 1,165,816 km (0.06 R)
• M5: 1,494,034 km (0.106 R)
• M6: 2,052,184 km (0.094 R)
• M7: 2,547,502 km (0.051 R)
• M8: 3,191,222 km (0.079 R)
• M9: 3,545,470 km (0.111 R)
• M10: 3,994,263 km (0.08 R)
• M11: 4,362,723 km (0.118 R)
• M12: 4,661,470 km (0.068 R)
• M13: 5,367,572 km (0.084 R)
• M14: 6,348,335 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.1

Radius: 8.6

Gravity: 8.63 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.72 AU - 0.96 AU

Year: 541 Days

Day: 7.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,868,622 km

• M1: 109,655 km (0.088 R)
• M2: 627,264 km (0.08 R)
• M3: 1,066,034 km (0.065 R)
• M4: 1,481,318 km (0.105 R)
• M5: 1,826,590 km (0.03 R)
• M6: 2,766,813 km (0.077 R)
• M7: 3,115,824 km (0.059 R)
• M8: 3,740,844 km (0.102 R)
• M9: 4,154,482 km (0.114 R)
• M10: 4,659,824 km (0.094 R)
• M11: 5,106,224 km (0.114 R)
• M12: 5,633,557 km (0.03 R)
• M13: 6,121,994 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807

Radius: 9.1

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.94 AU - 1.06 AU

Year: 703 Days

Day: 9 Hours

Environment

Temp: -173 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,868,622 km

• M1: 113,246 km (0.096 R)
• M2: 544,237 km (0.048 R)
• M3: 920,027 km (0.051 R)
• M4: 1,255,276 km (0.092 R)
• M5: 1,722,470 km (0.078 R)
• M6: 2,718,642 km (0.039 R)
• M7: 3,057,032 km (0.071 R)
• M8: 3,478,150 km (0.118 R)
• M9: 3,833,894 km (0.107 R)
• M10: 4,519,202 km (0.096 R)
• M11: 5,320,598 km (0.044 R)
• M12: 6,441,385 km (0.049 R)
• M13: 6,804,310 km (0.101 R)
• M14: 7,294,243 km (0.1 R)
• M15: 8,048,814 km (0.11 R)
• M16: 8,622,522 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.5

Radius: 13.3

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.98 AU - 1.08 AU

Year: 735 Days

Day: 11 Hours

Environment

Temp: -183 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,868,622 km

• M1: 165,455 km (0.066 R)
• M2: 605,572 km (0.103 R)
• M3: 1,529,937 km (0.026 R)
• M4: 1,957,638 km (0.067 R)
• M5: 2,991,359 km (0.106 R)
• M6: 3,563,571 km (0.105 R)
• M7: 3,999,499 km (0.111 R)
• M8: 5,979,277 km (0.115 R)
• M9: 6,394,411 km (0.106 R)
• M10: 6,913,815 km (0.086 R)
• M11: 7,597,029 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83

Radius: 11.8

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.19 AU - 3.75 AU

Year: 4544 Days

Day: 12.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,868,622 km

• M1: 146,756 km (0.087 R)
• M2: 691,890 km (0.086 R)
• M3: 1,123,929 km (0.074 R)
• M4: 1,652,308 km (0.084 R)
• M5: 2,259,077 km (0.066 R)
• M6: 3,517,196 km (0.112 R)
• M7: 8,816,850 km (0.105 R)
• M8: 9,632,158 km (0.114 R)
• M9: 10,025,002 km (0.112 R)
• M10: 11,668,335 km (0.106 R)
• M11: 12,419,466 km (0.088 R)
• M12: 13,162,668 km (0.12 R)
• M13: 13,893,902 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402

Radius: 11.5

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 2.97 AU - 4.41 AU

Year: 4983 Days

Day: 5.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,868,622 km

• M1: 149,299 km (0.111 R)
• M2: 563,834 km (0.083 R)
• M3: 1,476,082 km (0.101 R)
• M4: 2,746,767 km (0.053 R)
• M5: 3,372,834 km (0.091 R)
• M6: 3,855,586 km (0.098 R)
• M7: 4,476,866 km (0.07 R)
• M8: 8,381,669 km (0.076 R)
• M9: 9,581,893 km (0.113 R)
• M10: 10,512,990 km (0.116 R)
• M11: 11,459,047 km (0.09 R)
• M12: 12,367,555 km (0.056 R)
• M13: 13,669,356 km (0.116 R)
• M14: 15,382,102 km (0.086 R)
• M15: 15,873,082 km (0.077 R)
• M16: 16,829,012 km (0.084 R)
• M17: 17,763,251 km (0.116 R)
• M18: 19,735,400 km (0.084 R)
• M19: 22,820,108 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 419.9

Radius: 5.4

Gravity: 14.4 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.63 AU - 8.47 AU

Year: 13158 Days

Day: 20.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,868,622 km

• M1: 101,577 km (0.089 R)
• M2: 750,533 km (0.114 R)
• M3: 1,209,349 km (0.07 R)
• M4: 2,345,246 km (0.11 R)
• M5: 3,239,093 km (0.043 R)
• M6: 3,607,553 km (0.085 R)
• M7: 3,788,865 km (0.114 R)
• M8: 4,254,713 km (0.098 R)
• M9: 5,039,952 km (0.071 R)
• M10: 5,776,423 km (0.104 R)
• M11: 7,627,995 km (0.094 R)
• M12: 11,703,789 km (0.079 R)
• M13: 16,387,400 km (0.112 R)
• M14: 19,692,615 km (0.095 R)
• M15: 20,830,756 km (0.119 R)
• M16: 25,727,991 km (0.091 R)
• M17: 29,946,651 km (0.037 R)
• M18: 32,330,045 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.5

Radius: 6.4

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.66 AU - 8.6 AU

Year: 16295 Days

Day: 22.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,868,622 km

• M1: 81,680 km (0.066 R)
• M2: 331,060 km (0.072 R)
• M3: 622,028 km (0.106 R)
• M4: 1,005,746 km (0.06 R)
• M5: 5,172,646 km (0.069 R)
• M6: 7,649,687 km (0.088 R)
• M7: 7,878,123 km (0.088 R)
• M8: 10,619,803 km (0.085 R)
• M9: 11,277,435 km (0.084 R)
• M10: 17,101,879 km (0.094 R)
• M11: 17,719,120 km (0.083 R)
• M12: 20,966,291 km (0.048 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: 325 - 17,908 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit