🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.47 AU - 0.63 AU

Year: 263 Days

Day: 23.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.4

Radius: 12.4

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.7 AU - 0.9 AU

Year: 462 Days

Day: 10 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,997,357 km

• M1: 154,235 km (0.102 R)
• M2: 600,635 km (0.032 R)
• M3: 1,011,730 km (0.038 R)
• M4: 1,411,157 km (0.069 R)
• M5: 1,834,818 km (0.118 R)
• M6: 2,221,229 km (0.074 R)
• M7: 3,021,578 km (0.04 R)
• M8: 3,864,113 km (0.083 R)
• M9: 4,522,942 km (0.056 R)
• M10: 5,350,517 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.9

Radius: 8.9

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.93 AU - 1.27 AU

Year: 745 Days

Day: 13.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,997,357 km

• M1: 110,702 km (0.108 R)
• M2: 411,245 km (0.087 R)
• M3: 765,044 km (0.115 R)
• M4: 1,050,327 km (0.089 R)
• M5: 1,597,406 km (0.094 R)
• M6: 2,173,059 km (0.109 R)
• M7: 3,014,547 km (0.108 R)
• M8: 3,428,185 km (0.104 R)
• M9: 3,705,689 km (0.117 R)
• M10: 4,088,959 km (0.111 R)
• M11: 4,730,285 km (0.078 R)
• M12: 5,363,532 km (0.115 R)
• M13: 5,719,875 km (0.069 R)
• M14: 6,273,686 km (0.057 R)
• M15: 6,819,718 km (0.115 R)
• M16: 7,721,195 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.7

Radius: 12.4

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 2.77 AU - 3.21 AU

Year: 3338 Days

Day: 8 Hours

Environment

Temp: -197 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,997,357 km

• M1: 154,235 km (0.093 R)
• M2: 1,000,810 km (0.103 R)
• M3: 1,992,045 km (0.095 R)
• M4: 5,485,904 km (0.096 R)
• M5: 7,194,012 km (0.044 R)
• M6: 8,718,414 km (0.116 R)
• M7: 9,232,732 km (0.038 R)
• M8: 10,671,863 km (0.114 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 869.4

Radius: 7.9

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 6.57 AU - 8.87 AU

Year: 13850 Days

Day: 18.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 45,997,357 km

• M1: 98,585 km (0.064 R)
• M2: 553,961 km (0.054 R)
• M3: 831,615 km (0.111 R)
• M4: 1,140,833 km (0.117 R)
• M5: 1,542,055 km (0.102 R)
• M6: 1,942,977 km (0.108 R)
• M7: 2,227,811 km (0.117 R)
• M8: 2,518,779 km (0.099 R)
• M9: 2,765,167 km (0.048 R)
• M10: 9,308,728 km (0.072 R)
• M11: 11,405,042 km (0.073 R)
• M12: 13,456,179 km (0.118 R)
• M13: 13,797,561 km (0.112 R)
• M14: 15,666,487 km (0.091 R)
• M15: 17,943,367 km (0.099 R)
• M16: 18,357,005 km (0.118 R)
• M17: 19,032,140 km (0.102 R)
• M18: 21,433,336 km (0.065 R)
• M19: 22,562,500 km (0.094 R)
• M20: 24,633,384 km (0.113 R)
• M21: 26,827,835 km (0.038 R)
• M22: 27,260,023 km (0.044 R)
• M23: 27,917,207 km (0.116 R)
• M24: 28,697,060 km (0.03 R)
• M25: 30,769,290 km (0.064 R)
• M26: 32,204,831 km (0.098 R)
• M27: 33,186,343 km (0.113 R)
• M28: 42,349,063 km (0.08 R)
• M29: 43,378,296 km (0.079 R)
• M30: 51,386,121 km (0.071 R)
• M31: 54,087,858 km (0.108 R)
• M32: 59,772,727 km (0.105 R)
• M33: 60,140,738 km (0.088 R)
• M34: 61,253,746 km (0.111 R)

Asteroid Belt

Center: 8.24 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236.7

Radius: 6.2

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 7.33 AU - 10.17 AU

Year: 16712 Days

Day: 19.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 83.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,997,357 km

• M1: 80,184 km (0.057 R)
• M2: 281,842 km (0.089 R)
• M3: 547,079 km (0.086 R)
• M4: 908,358 km (0.079 R)
• M5: 1,458,878 km (0.111 R)
• M6: 1,855,014 km (0.104 R)
• M7: 2,283,462 km (0.074 R)
• M8: 2,796,882 km (0.093 R)
• M9: 3,889,844 km (0.09 R)
• M10: 6,203,824 km (0.09 R)
• M11: 8,205,443 km (0.096 R)
• M12: 9,399,982 km (0.106 R)
• M13: 9,839,202 km (0.052 R)
• M14: 10,038,765 km (0.055 R)
• M15: 11,131,129 km (0.093 R)
• M16: 13,859,345 km (0.114 R)
• M17: 16,437,365 km (0.089 R)
• M18: 18,549,837 km (0.076 R)
• M19: 19,789,554 km (0.048 R)
• M20: 25,209,635 km (0.048 R)
• M21: 28,106,747 km (0.12 R)
• M22: 32,085,452 km (0.063 R)
• M23: 33,981,007 km (0.109 R)
• M24: 37,749,227 km (0.112 R)
• M25: 38,732,983 km (0.09 R)
• M26: 40,367,789 km (0.079 R)
• M27: 43,774,581 km (0.083 R)
• M28: 45,134,426 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.3

Radius: 4.2

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 9.11 AU - 9.23 AU

Year: 17930 Days

Day: 20.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 45,997,357 km

• M1: 52,210 km (0.098 R)
• M2: 233,522 km (0.117 R)
• M3: 787,483 km (0.084 R)
• M4: 1,071,719 km (0.108 R)
• M5: 1,557,763 km (0.106 R)
• M6: 1,890,169 km (0.034 R)
• M7: 2,398,353 km (0.09 R)
• M8: 2,798,677 km (0.11 R)
• M9: 4,553,610 km (0.113 R)
• M10: 6,327,990 km (0.099 R)
• M11: 7,286,912 km (0.11 R)
• M12: 7,864,360 km (0.103 R)
• M13: 8,164,304 km (0.092 R)
• M14: 8,970,337 km (0.067 R)
• M15: 9,877,499 km (0.099 R)
• M16: 10,896,559 km (0.114 R)
• M17: 13,082,035 km (0.074 R)
• M18: 15,676,660 km (0.083 R)
• M19: 16,776,055 km (0.097 R)
• M20: 19,904,296 km (0.109 R)
• M21: 20,783,483 km (0.111 R)
• M22: 21,191,586 km (0.106 R)
• M23: 21,521,898 km (0.094 R)
• M24: 25,200,061 km (0.059 R)
• M25: 26,323,092 km (0.058 R)
• M26: 30,307,182 km (0.1 R)
• M27: 33,546,275 km (0.101 R)
• M28: 37,247,476 km (0.12 R)
• M29: 39,196,138 km (0.083 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 13,549 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit