🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.4 AU - 0.64 AU

Year: 246 Days

Day: 32.3 Hours

Environment

Temp: -120 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,189,566 km

• M1: 148,251 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.6

Radius: 10.3

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.62 AU - 1.02 AU

Year: 487 Days

Day: 9 Hours

Environment

Temp: -138 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,189,566 km

• M1: 128,056 km (0.107 R)
• M2: 521,349 km (0.036 R)
• M3: 1,123,181 km (0.102 R)
• M4: 1,652,458 km (0.06 R)
• M5: 1,993,691 km (0.077 R)
• M6: 2,326,247 km (0.081 R)
• M7: 3,631,488 km (0.103 R)
• M8: 3,956,564 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.9

Radius: 10.1

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.04 AU - 1.34 AU

Year: 852 Days

Day: 11.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,189,566 km

• M1: 125,662 km (0.085 R)
• M2: 505,042 km (0.062 R)
• M3: 906,862 km (0.115 R)
• M4: 1,261,409 km (0.108 R)
• M5: 2,024,658 km (0.073 R)
• M6: 2,554,084 km (0.12 R)
• M7: 2,907,285 km (0.118 R)
• M8: 3,253,006 km (0.117 R)
• M9: 3,786,472 km (0.09 R)
• M10: 4,121,421 km (0.041 R)
• M11: 5,082,737 km (0.118 R)
• M12: 5,802,453 km (0.078 R)
• M13: 7,586,108 km (0.102 R)
• M14: 8,046,720 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.3

Radius: 12.2

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.22 AU - 1.42 AU

Year: 995 Days

Day: 10.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,189,566 km

• M1: 151,842 km (0.066 R)
• M2: 626,965 km (0.074 R)
• M3: 1,019,958 km (0.049 R)
• M4: 1,427,912 km (0.102 R)
• M5: 2,345,096 km (0.114 R)
• M6: 2,899,955 km (0.097 R)
• M7: 3,567,760 km (0.119 R)
• M8: 4,126,807 km (0.041 R)
• M9: 4,552,413 km (0.064 R)
• M10: 5,108,618 km (0.114 R)
• M11: 5,636,848 km (0.102 R)
• M12: 6,220,728 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.1

Radius: 8.8

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.65 AU - 1.85 AU

Year: 1519 Days

Day: 13.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,189,566 km

• M1: 109,805 km (0.099 R)
• M2: 725,550 km (0.104 R)
• M3: 1,061,846 km (0.09 R)
• M4: 1,587,233 km (0.107 R)
• M5: 1,910,066 km (0.1 R)
• M6: 3,167,436 km (0.108 R)
• M7: 3,684,296 km (0.109 R)
• M8: 5,077,352 km (0.114 R)
• M9: 5,353,360 km (0.103 R)
• M10: 7,424,393 km (0.116 R)
• M11: 10,195,394 km (0.093 R)
• M12: 10,958,642 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.6

Radius: 12.8

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.94 AU - 2.82 AU

Year: 2409 Days

Day: 12.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,189,566 km

• M1: 159,172 km (0.104 R)
• M2: 601,533 km (0.037 R)
• M3: 1,054,216 km (0.076 R)
• M4: 1,458,280 km (0.113 R)
• M5: 1,887,177 km (0.104 R)
• M6: 2,456,397 km (0.068 R)
• M7: 2,929,426 km (0.066 R)
• M8: 3,340,969 km (0.118 R)
• M9: 4,490,778 km (0.113 R)
• M10: 5,514,626 km (0.056 R)
• M11: 6,577,669 km (0.043 R)
• M12: 7,260,733 km (0.09 R)
• M13: 8,504,041 km (0.101 R)
• M14: 8,937,276 km (0.102 R)
• M15: 9,561,548 km (0.119 R)
• M16: 10,363,991 km (0.062 R)
• M17: 12,396,876 km (0.102 R)
• M18: 15,553,391 km (0.088 R)
• M19: 18,426,419 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.3

Radius: 8.7

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.98 AU - 2.88 AU

Year: 2485 Days

Day: 12.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,189,566 km

• M1: 108,309 km (0.031 R)
• M2: 591,360 km (0.103 R)
• M3: 1,139,487 km (0.107 R)
• M4: 1,574,218 km (0.103 R)
• M5: 2,190,711 km (0.09 R)
• M6: 2,675,857 km (0.12 R)
• M7: 3,313,892 km (0.09 R)
• M8: 3,678,013 km (0.119 R)
• M9: 4,011,317 km (0.108 R)
• M10: 4,591,009 km (0.083 R)
• M11: 5,294,119 km (0.073 R)
• M12: 7,165,140 km (0.062 R)
• M13: 7,806,316 km (0.106 R)
• M14: 8,233,867 km (0.088 R)
• M15: 9,236,472 km (0.069 R)
• M16: 10,573,727 km (0.107 R)
• M17: 11,915,620 km (0.119 R)
• M18: 12,606,762 km (0.1 R)
• M19: 15,881,759 km (0.076 R)
• M20: 16,970,382 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.6

Radius: 12.8

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 4.1 AU - 5.2 AU

Year: 6578 Days

Day: 13.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 27,189,566 km

• M1: 159,172 km (0.026 R)
• M2: 824,583 km (0.115 R)
• M3: 1,958,386 km (0.102 R)
• M4: 2,422,289 km (0.103 R)
• M5: 3,060,174 km (0.065 R)
• M6: 4,000,696 km (0.102 R)
• M7: 4,459,213 km (0.105 R)
• M8: 4,896,039 km (0.11 R)
• M9: 5,482,762 km (0.094 R)
• M10: 9,858,649 km (0.071 R)
• M11: 10,942,336 km (0.098 R)
• M12: 11,589,197 km (0.063 R)
• M13: 15,397,062 km (0.093 R)
• M14: 17,051,016 km (0.101 R)
• M15: 17,515,966 km (0.104 R)
• M16: 18,961,530 km (0.071 R)
• M17: 20,410,984 km (0.051 R)
• M18: 23,123,492 km (0.111 R)
• M19: 24,608,102 km (0.113 R)
• M20: 27,042,508 km (0.116 R)
• M21: 27,584,501 km (0.095 R)
• M22: 28,041,522 km (0.07 R)
• M23: 31,087,634 km (0.11 R)
• M24: 31,982,529 km (0.057 R)
• M25: 33,202,499 km (0.057 R)
• M26: 35,843,351 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 37.8

Radius: 3.5

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 7.27 AU - 11.05 AU

Year: 18187 Days

Day: 22.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,189,566 km

• M1: 45,328 km (0.046 R)
• M2: 229,782 km (0.104 R)
• M3: 391,348 km (0.059 R)
• M4: 1,036,863 km (0.04 R)
• M5: 1,793,978 km (0.081 R)
• M6: 2,517,283 km (0.093 R)
• M7: 2,861,957 km (0.082 R)
• M8: 3,816,541 km (0.104 R)
• M9: 4,365,715 km (0.109 R)
• M10: 6,734,747 km (0.11 R)
• M11: 7,027,061 km (0.102 R)
• M12: 9,314,711 km (0.108 R)
• M13: 9,883,034 km (0.119 R)
• M14: 12,777,603 km (0.093 R)
• M15: 17,430,695 km (0.082 R)
• M16: 19,309,944 km (0.097 R)
• M17: 21,738,067 km (0.073 R)
• M18: 22,019,759 km (0.101 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 17,549 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit