🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.9

Radius: 11.2

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.83 AU - 1.01 AU

Year: 570 Days

Day: 10.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 58.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,329,856 km

• M1: 139,425 km (0.108 R)
• M2: 492,775 km (0.118 R)
• M3: 862,881 km (0.095 R)
• M4: 1,373,159 km (0.064 R)
• M5: 1,926,671 km (0.046 R)
• M6: 2,311,138 km (0.037 R)
• M7: 3,276,193 km (0.04 R)
• M8: 3,702,697 km (0.116 R)
• M9: 4,121,272 km (0.03 R)
• M10: 4,587,419 km (0.115 R)
• M11: 5,388,665 km (0.06 R)
• M12: 5,851,670 km (0.089 R)
• M13: 6,221,177 km (0.074 R)
• M14: 7,335,232 km (0.091 R)
• M15: 7,788,664 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.8

Radius: 11.5

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.24 AU - 1.82 AU

Year: 1222 Days

Day: 6.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,329,856 km

• M1: 143,016 km (0.043 R)
• M2: 569,968 km (0.057 R)
• M3: 1,164,470 km (0.096 R)
• M4: 1,624,184 km (0.091 R)
• M5: 1,990,848 km (0.098 R)
• M6: 2,647,434 km (0.05 R)
• M7: 3,221,590 km (0.068 R)
• M8: 3,822,974 km (0.115 R)
• M9: 4,497,810 km (0.102 R)
• M10: 4,952,886 km (0.097 R)
• M11: 5,937,539 km (0.069 R)
• M12: 6,389,325 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.2

Radius: 8.3

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.25 AU - 2.05 AU

Year: 1368 Days

Day: 6.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,329,856 km

• M1: 108,758 km (0.097 R)
• M2: 393,442 km (0.083 R)
• M3: 713,582 km (0.078 R)
• M4: 1,642,285 km (0.087 R)
• M5: 1,953,150 km (0.099 R)
• M6: 2,363,796 km (0.113 R)
• M7: 2,886,641 km (0.086 R)
• M8: 3,296,838 km (0.071 R)
• M9: 3,863,963 km (0.103 R)
• M10: 4,494,668 km (0.096 R)
• M11: 5,982,718 km (0.102 R)
• M12: 7,106,796 km (0.054 R)
• M13: 8,452,728 km (0.084 R)
• M14: 8,866,666 km (0.066 R)
• M15: 9,831,422 km (0.11 R)
• M16: 10,157,097 km (0.099 R)
• M17: 11,354,179 km (0.112 R)
• M18: 11,858,474 km (0.113 R)
• M19: 12,340,029 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.4

Radius: 10.5

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.22 AU - 2.6 AU

Year: 2416 Days

Day: 9.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 86.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,329,856 km

• M1: 130,599 km (0.032 R)
• M2: 518,805 km (0.094 R)
• M3: 1,146,967 km (0.112 R)
• M4: 1,667,418 km (0.072 R)
• M5: 2,878,861 km (0.071 R)
• M6: 3,409,485 km (0.073 R)
• M7: 4,063,527 km (0.107 R)
• M8: 4,710,837 km (0.094 R)
• M9: 5,377,295 km (0.108 R)
• M10: 6,105,538 km (0.113 R)
• M11: 7,128,488 km (0.092 R)
• M12: 9,547,336 km (0.059 R)
• M13: 10,425,027 km (0.093 R)
• M14: 11,556,436 km (0.108 R)
• M15: 13,028,479 km (0.086 R)
• M16: 14,061,601 km (0.087 R)
• M17: 14,764,412 km (0.112 R)
• M18: 15,294,438 km (0.081 R)
• M19: 17,703,412 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.9

Radius: 13.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.14 AU - 4.56 AU

Year: 5858 Days

Day: 5.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,329,856 km

• M1: 166,652 km (0.06 R)
• M2: 585,975 km (0.06 R)
• M3: 1,214,136 km (0.034 R)
• M4: 1,666,670 km (0.089 R)
• M5: 3,105,353 km (0.08 R)
• M6: 3,784,078 km (0.082 R)
• M7: 4,350,755 km (0.109 R)
• M8: 6,251,695 km (0.083 R)
• M9: 6,671,915 km (0.111 R)
• M10: 7,239,939 km (0.093 R)
• M11: 8,473,523 km (0.078 R)
• M12: 9,565,587 km (0.044 R)
• M13: 10,166,222 km (0.105 R)
• M14: 17,873,056 km (0.12 R)
• M15: 18,416,844 km (0.113 R)
• M16: 18,909,620 km (0.102 R)
• M17: 20,902,413 km (0.12 R)
• M18: 21,574,107 km (0.058 R)
• M19: 22,890,120 km (0.109 R)

Asteroid Belt

Center: 5.45 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 107.8

Radius: 4.4

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 5.86 AU - 7.24 AU

Year: 10824 Days

Day: 20.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,329,856 km

• M1: 54,902 km (0.083 R)
• M2: 474,973 km (0.098 R)
• M3: 2,486,466 km (0.071 R)
• M4: 3,028,310 km (0.061 R)
• M5: 3,478,450 km (0.1 R)
• M6: 4,965,303 km (0.118 R)
• M7: 10,953,855 km (0.119 R)
• M8: 13,326,029 km (0.058 R)
• M9: 14,685,275 km (0.085 R)
• M10: 18,735,488 km (0.038 R)
• M11: 24,218,250 km (0.08 R)
• M12: 24,369,344 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 153.3

Radius: 3.1

Gravity: 15.95 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 7.72 AU - 11.26 AU

Year: 18876 Days

Day: 17.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,329,856 km

• M1: 38,596 km (0.077 R)
• M2: 182,509 km (0.075 R)
• M3: 315,203 km (0.085 R)
• M4: 426,803 km (0.116 R)
• M5: 922,420 km (0.106 R)
• M6: 1,034,469 km (0.097 R)
• M7: 1,155,644 km (0.05 R)
• M8: 2,713,705 km (0.081 R)
• M9: 3,189,875 km (0.072 R)
• M10: 4,950,044 km (0.11 R)
• M11: 5,623,234 km (0.102 R)
• M12: 6,801,018 km (0.06 R)
• M13: 6,954,207 km (0.057 R)
• M14: 7,387,143 km (0.097 R)
• M15: 12,461,203 km (0.105 R)
• M16: 14,691,259 km (0.049 R)
• M17: 17,889,213 km (0.114 R)
• M18: 18,849,182 km (0.084 R)
• M19: 26,266,843 km (0.069 R)
• M20: 27,408,424 km (0.071 R)
• M21: 38,476,722 km (0.088 R)
• M22: 38,719,220 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 396

Radius: 7

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.79 AU - 11.23 AU

Year: 20449 Days

Day: 15.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,329,856 km

• M1: 110,104 km (0.085 R)
• M2: 365,318 km (0.093 R)
• M3: 818,749 km (0.112 R)
• M4: 1,482,216 km (0.094 R)
• M5: 2,354,072 km (0.068 R)
• M6: 2,937,055 km (0.111 R)
• M7: 4,645,612 km (0.114 R)
• M8: 6,059,013 km (0.083 R)
• M9: 10,717,191 km (0.087 R)
• M10: 15,922,449 km (0.037 R)
• M11: 22,027,987 km (0.107 R)
• M12: 23,965,728 km (0.119 R)
• M13: 25,078,587 km (0.074 R)
• M14: 29,530,470 km (0.065 R)
• M15: 32,488,469 km (0.075 R)
• M16: 39,123,882 km (0.069 R)
• M17: 42,391,100 km (0.115 R)
• M18: 42,977,374 km (0.073 R)
• M19: 52,767,807 km (0.095 R)
• M20: 54,130,194 km (0.1 R)
• M21: 62,610,898 km (0.109 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: 417 - 14,921 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit