🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.63 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.7

Radius: 14.4

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.99 AU - 1.53 AU

Year: 928 Days

Day: 9.2 Hours

Environment

Temp: -174 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,021,667 km

• M1: 179,069 km (0.102 R)
• M2: 664,215 km (0.113 R)
• M3: 1,304,045 km (0.088 R)
• M4: 2,051,136 km (0.108 R)
• M5: 2,842,060 km (0.098 R)
• M6: 3,995,011 km (0.049 R)
• M7: 4,884,221 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.6

Radius: 8.3

Gravity: 14.44 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.14 AU - 1.66 AU

Year: 1087 Days

Day: 7.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,021,667 km

• M1: 103,372 km (0.092 R)
• M2: 454,478 km (0.11 R)
• M3: 835,953 km (0.117 R)
• M4: 1,105,229 km (0.05 R)
• M5: 1,375,702 km (0.1 R)
• M6: 2,076,418 km (0.093 R)
• M7: 2,569,643 km (0.08 R)
• M8: 3,376,873 km (0.105 R)
• M9: 4,527,280 km (0.068 R)
• M10: 6,123,340 km (0.118 R)
• M11: 6,665,333 km (0.116 R)
• M12: 7,790,908 km (0.106 R)
• M13: 8,230,127 km (0.084 R)
• M14: 8,831,510 km (0.104 R)
• M15: 9,554,367 km (0.11 R)
• M16: 9,898,592 km (0.098 R)
• M17: 10,913,464 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.9

Radius: 12.2

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.21 AU - 2.53 AU

Year: 2393 Days

Day: 14.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,021,667 km

• M1: 190,288 km (0.118 R)
• M2: 888,761 km (0.117 R)
• M3: 1,685,070 km (0.097 R)
• M4: 2,498,284 km (0.092 R)
• M5: 4,667,154 km (0.118 R)
• M6: 5,204,660 km (0.089 R)
• M7: 6,183,478 km (0.106 R)
• M8: 6,862,503 km (0.113 R)
• M9: 7,876,777 km (0.11 R)
• M10: 9,637,394 km (0.088 R)
• M11: 12,639,075 km (0.104 R)
• M12: 16,745,686 km (0.087 R)
• M13: 18,348,628 km (0.108 R)
• M14: 18,982,773 km (0.097 R)
• M15: 20,233,860 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.9

Radius: 11.9

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.62 AU - 4.06 AU

Year: 4004 Days

Day: 7.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,021,667 km

• M1: 148,102 km (0.107 R)
• M2: 1,384,678 km (0.04 R)
• M3: 1,769,892 km (0.07 R)
• M4: 2,586,996 km (0.079 R)
• M5: 2,968,022 km (0.106 R)
• M6: 3,367,747 km (0.064 R)
• M7: 4,254,563 km (0.081 R)
• M8: 4,936,431 km (0.051 R)
• M9: 6,340,556 km (0.119 R)
• M10: 7,167,234 km (0.103 R)
• M11: 9,072,363 km (0.068 R)
• M12: 10,781,369 km (0.097 R)
• M13: 12,277,348 km (0.091 R)
• M14: 14,670,764 km (0.115 R)
• M15: 20,817,740 km (0.063 R)
• M16: 23,339,213 km (0.028 R)
• M17: 24,490,069 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.3

Radius: 14.3

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.05 AU - 4.23 AU

Year: 4556 Days

Day: 14.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,021,667 km

• M1: 177,872 km (0.073 R)
• M2: 1,068,129 km (0.106 R)
• M3: 1,707,959 km (0.061 R)
• M4: 2,223,623 km (0.069 R)
• M5: 3,535,446 km (0.05 R)
• M6: 4,130,098 km (0.049 R)
• M7: 4,808,674 km (0.068 R)
• M8: 5,389,114 km (0.119 R)
• M9: 7,630,688 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.2

Radius: 10.9

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.28 AU - 4.86 AU

Year: 5386 Days

Day: 6.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,021,667 km

• M1: 135,984 km (0.119 R)
• M2: 486,193 km (0.099 R)
• M3: 924,814 km (0.09 R)
• M4: 3,149,783 km (0.097 R)
• M5: 3,676,068 km (0.064 R)
• M6: 4,438,419 km (0.098 R)
• M7: 4,833,657 km (0.107 R)
• M8: 5,939,484 km (0.11 R)
• M9: 6,478,934 km (0.032 R)
• M10: 8,123,613 km (0.03 R)
• M11: 8,539,645 km (0.118 R)
• M12: 9,339,545 km (0.065 R)
• M13: 9,913,103 km (0.066 R)
• M14: 15,803,968 km (0.117 R)
• M15: 18,929,217 km (0.1 R)
• M16: 21,908,159 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.7

Radius: 10.2

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 4.12 AU - 4.14 AU

Year: 5506 Days

Day: 5.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,021,667 km

• M1: 126,859 km (0.07 R)
• M2: 590,912 km (0.095 R)
• M3: 1,719,328 km (0.089 R)
• M4: 2,219,584 km (0.103 R)
• M5: 2,553,636 km (0.114 R)
• M6: 3,392,730 km (0.091 R)
• M7: 3,839,130 km (0.106 R)
• M8: 4,613,748 km (0.105 R)
• M9: 5,829,530 km (0.119 R)
• M10: 7,218,396 km (0.032 R)
• M11: 8,460,208 km (0.079 R)
• M12: 8,981,557 km (0.073 R)
• M13: 10,712,554 km (0.116 R)
• M14: 11,796,241 km (0.116 R)
• M15: 12,447,291 km (0.052 R)
• M16: 15,485,324 km (0.099 R)
• M17: 17,021,695 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.4

Radius: 7.1

Gravity: 13.06 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 9.13 AU - 11.93 AU

Year: 22416 Days

Day: 24.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,021,667 km

• M1: 89,160 km (0.07 R)
• M2: 378,183 km (0.093 R)
• M3: 697,724 km (0.082 R)
• M4: 985,850 km (0.114 R)
• M5: 1,646,175 km (0.089 R)
• M6: 2,790,299 km (0.094 R)
• M7: 3,770,764 km (0.032 R)
• M8: 4,187,843 km (0.079 R)
• M9: 7,762,334 km (0.102 R)
• M10: 11,078,770 km (0.108 R)
• M11: 12,412,285 km (0.103 R)
• M12: 21,503,946 km (0.081 R)
• M13: 24,539,287 km (0.119 R)
• M14: 31,832,183 km (0.1 R)
• M15: 36,321,914 km (0.116 R)
• M16: 45,203,989 km (0.063 R)
• M17: 49,616,228 km (0.096 R)
• M18: 50,143,112 km (0.098 R)
• M19: 53,016,438 km (0.04 R)
• M20: 59,088,765 km (0.092 R)
• M21: 63,110,106 km (0.117 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 15,081 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit