🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.72 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 12.1

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.1 AU - 1.78 AU

Year: 1116 Days

Day: 7.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,190,566 km

• M1: 151,094 km (0.069 R)
• M2: 603,927 km (0.111 R)
• M3: 1,255,725 km (0.118 R)
• M4: 1,788,443 km (0.036 R)
• M5: 2,575,028 km (0.107 R)
• M6: 3,001,980 km (0.071 R)
• M7: 3,888,497 km (0.077 R)
• M8: 4,367,510 km (0.113 R)
• M9: 4,830,515 km (0.04 R)
• M10: 6,555,079 km (0.063 R)
• M11: 7,607,201 km (0.094 R)
• M12: 8,386,905 km (0.071 R)
• M13: 8,879,980 km (0.064 R)
• M14: 9,984,461 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.7

Radius: 13.3

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.48 AU - 2.08 AU

Year: 1533 Days

Day: 7.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,190,566 km

• M1: 165,455 km (0.101 R)
• M2: 663,766 km (0.096 R)
• M3: 1,138,739 km (0.086 R)
• M4: 1,645,577 km (0.056 R)
• M5: 2,256,983 km (0.085 R)
• M6: 2,715,351 km (0.077 R)
• M7: 3,924,999 km (0.103 R)
• M8: 5,532,129 km (0.084 R)
• M9: 6,642,445 km (0.086 R)
• M10: 7,355,727 km (0.099 R)
• M11: 7,841,023 km (0.103 R)
• M12: 8,290,116 km (0.068 R)
• M13: 9,148,359 km (0.063 R)
• M14: 10,032,332 km (0.032 R)
• M15: 10,528,997 km (0.117 R)
• M16: 11,643,352 km (0.118 R)
• M17: 12,567,568 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.6

Radius: 8.4

Gravity: 11.16 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.93 AU - 2.95 AU

Year: 2461 Days

Day: 5.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,190,566 km

• M1: 104,868 km (0.039 R)
• M2: 368,908 km (0.08 R)
• M3: 683,213 km (0.098 R)
• M4: 945,459 km (0.052 R)
• M5: 1,939,985 km (0.106 R)
• M6: 2,752,601 km (0.054 R)
• M7: 3,108,195 km (0.076 R)
• M8: 3,911,984 km (0.055 R)
• M9: 5,127,018 km (0.069 R)
• M10: 7,244,426 km (0.081 R)
• M11: 8,749,231 km (0.086 R)
• M12: 10,606,339 km (0.078 R)
• M13: 11,524,272 km (0.098 R)
• M14: 11,855,631 km (0.05 R)
• M15: 12,278,844 km (0.098 R)
• M16: 13,701,071 km (0.096 R)
• M17: 15,730,067 km (0.084 R)
• M18: 16,035,545 km (0.11 R)
• M19: 17,296,805 km (0.025 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.1

Radius: 14.4

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.28 AU - 3.04 AU

Year: 2801 Days

Day: 7.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,190,566 km

• M1: 179,966 km (0.105 R)
• M2: 636,090 km (0.102 R)
• M3: 1,330,075 km (0.097 R)
• M4: 2,082,402 km (0.053 R)
• M5: 2,621,403 km (0.084 R)
• M6: 3,527,368 km (0.029 R)
• M7: 4,063,976 km (0.12 R)
• M8: 6,010,693 km (0.094 R)
• M9: 11,539,232 km (0.105 R)
• M10: 12,943,956 km (0.115 R)
• M11: 13,687,756 km (0.084 R)
• M12: 15,599,318 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.7

Radius: 14.8

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 3.95 AU - 4.07 AU

Year: 5185 Days

Day: 13.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,190,566 km

• M1: 210,933 km (0.097 R)
• M2: 916,437 km (0.118 R)
• M3: 1,682,826 km (0.097 R)
• M4: 2,965,329 km (0.083 R)
• M5: 3,926,795 km (0.116 R)
• M6: 4,946,005 km (0.065 R)
• M7: 7,668,836 km (0.057 R)
• M8: 9,198,025 km (0.086 R)
• M9: 11,953,169 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.4

Radius: 6.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 6.5 AU - 7.74 AU

Year: 12267 Days

Day: 24.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,190,566 km

• M1: 83,924 km (0.1 R)
• M2: 313,557 km (0.118 R)
• M3: 2,267,156 km (0.06 R)
• M4: 8,147,549 km (0.047 R)
• M5: 8,977,368 km (0.102 R)
• M6: 9,656,243 km (0.094 R)
• M7: 12,569,662 km (0.089 R)
• M8: 13,469,643 km (0.115 R)
• M9: 13,987,850 km (0.095 R)
• M10: 14,844,447 km (0.092 R)
• M11: 17,078,093 km (0.118 R)
• M12: 18,558,813 km (0.045 R)
• M13: 18,877,755 km (0.064 R)
• M14: 20,123,158 km (0.109 R)
• M15: 22,128,068 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.9

Radius: 4.1

Gravity: 34.08 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9.79 AU - 11.45 AU

Year: 22346 Days

Day: 16 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,190,566 km

• M1: 51,162 km (0.079 R)
• M2: 355,295 km (0.091 R)
• M3: 765,343 km (0.119 R)
• M4: 1,157,888 km (0.093 R)
• M5: 2,531,645 km (0.1 R)
• M6: 2,699,045 km (0.108 R)
• M7: 3,680,108 km (0.109 R)
• M8: 4,591,757 km (0.091 R)
• M9: 5,445,662 km (0.111 R)
• M10: 10,163,679 km (0.083 R)
• M11: 11,405,790 km (0.118 R)
• M12: 12,063,273 km (0.119 R)
• M13: 14,336,712 km (0.092 R)
• M14: 17,819,799 km (0.117 R)
• M15: 17,994,230 km (0.105 R)
• M16: 19,431,567 km (0.117 R)
• M17: 21,827,526 km (0.057 R)
• M18: 23,460,088 km (0.096 R)
• M19: 27,776,884 km (0.103 R)
• M20: 28,484,781 km (0.115 R)
• M21: 64,943,278 km (0.11 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 17,611 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit