🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.3

Radius: 9.5

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.65 AU - 0.87 AU

Year: 449 Days

Day: 14.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 30,535,984 km

• M1: 118,182 km (0.096 R)
• M2: 485,894 km (0.073 R)
• M3: 807,529 km (0.118 R)
• M4: 1,172,997 km (0.12 R)
• M5: 1,535,622 km (0.112 R)
• M6: 1,995,037 km (0.04 R)
• M7: 2,348,088 km (0.095 R)
• M8: 3,110,439 km (0.118 R)
• M9: 3,521,833 km (0.05 R)
• M10: 3,933,526 km (0.051 R)
• M11: 4,351,652 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.3

Radius: 14.7

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.68 AU - 0.9 AU

Year: 476 Days

Day: 10.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,535,984 km

• M1: 182,809 km (0.1 R)
• M2: 641,326 km (0.111 R)
• M3: 1,145,770 km (0.096 R)
• M4: 1,611,019 km (0.065 R)
• M5: 3,069,599 km (0.117 R)
• M6: 3,877,427 km (0.047 R)
• M7: 4,433,632 km (0.064 R)
• M8: 5,058,802 km (0.099 R)
• M9: 5,519,264 km (0.104 R)
• M10: 6,170,912 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.3

Radius: 11.7

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.72 AU - 0.88 AU

Year: 485 Days

Day: 5.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,535,984 km

• M1: 145,559 km (0.037 R)
• M2: 606,320 km (0.085 R)
• M3: 1,385,127 km (0.111 R)
• M4: 1,776,924 km (0.11 R)
• M5: 2,261,172 km (0.113 R)
• M6: 2,671,369 km (0.1 R)
• M7: 3,439,704 km (0.031 R)
• M8: 4,212,676 km (0.097 R)
• M9: 4,869,560 km (0.076 R)
• M10: 5,610,070 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.1

Radius: 8.2

Gravity: 9.62 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.3 AU - 1.54 AU

Year: 1148 Days

Day: 10.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 30,535,984 km

• M1: 102,026 km (0.097 R)
• M2: 367,562 km (0.06 R)
• M3: 764,894 km (0.03 R)
• M4: 1,166,265 km (0.08 R)
• M5: 1,444,966 km (0.047 R)
• M6: 1,703,621 km (0.084 R)
• M7: 2,086,890 km (0.107 R)
• M8: 2,515,039 km (0.118 R)
• M9: 4,744,796 km (0.114 R)
• M10: 5,466,456 km (0.101 R)
• M11: 8,044,925 km (0.088 R)
• M12: 9,155,539 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.9

Radius: 10.1

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.18 AU - 1.86 AU

Year: 1271 Days

Day: 7.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,535,984 km

• M1: 125,662 km (0.078 R)
• M2: 544,985 km (0.036 R)
• M3: 914,043 km (0.119 R)
• M4: 1,657,245 km (0.063 R)
• M5: 2,245,913 km (0.07 R)
• M6: 2,894,868 km (0.086 R)
• M7: 4,020,592 km (0.063 R)
• M8: 4,531,469 km (0.112 R)
• M9: 4,855,049 km (0.115 R)
• M10: 6,560,615 km (0.034 R)
• M11: 7,293,195 km (0.118 R)
• M12: 8,252,866 km (0.058 R)
• M13: 8,763,443 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.1

Radius: 9.3

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.73 AU - 2.03 AU

Year: 1748 Days

Day: 7 Hours

Environment

Temp: -198 °C

Axial Tilt: 139 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,535,984 km

• M1: 115,938 km (0.077 R)
• M2: 486,642 km (0.055 R)
• M3: 1,633,758 km (0.113 R)
• M4: 2,748,113 km (0.06 R)
• M5: 3,300,877 km (0.072 R)
• M6: 3,709,429 km (0.069 R)
• M7: 4,385,462 km (0.085 R)
• M8: 5,035,614 km (0.084 R)
• M9: 5,430,104 km (0.079 R)
• M10: 8,270,219 km (0.036 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.7

Radius: 10

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.32 AU - 3.54 AU

Year: 3402 Days

Day: 8.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,535,984 km

• M1: 124,316 km (0.088 R)
• M2: 445,353 km (0.107 R)
• M3: 854,353 km (0.092 R)
• M4: 1,171,501 km (0.106 R)
• M5: 1,504,207 km (0.12 R)
• M6: 2,070,435 km (0.079 R)
• M7: 2,595,972 km (0.061 R)
• M8: 4,372,746 km (0.073 R)
• M9: 6,077,114 km (0.049 R)
• M10: 8,537,550 km (0.113 R)
• M11: 9,928,661 km (0.094 R)
• M12: 11,378,414 km (0.097 R)
• M13: 11,817,484 km (0.096 R)
• M14: 12,405,104 km (0.059 R)
• M15: 13,589,620 km (0.078 R)
• M16: 15,909,434 km (0.115 R)
• M17: 16,237,652 km (0.066 R)
• M18: 17,363,974 km (0.101 R)
• M19: 21,055,601 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.7

Radius: 9.9

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.51 AU - 4.15 AU

Year: 5084 Days

Day: 9 Hours

Environment

Temp: -213 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 30,535,984 km

• M1: 123,269 km (0.099 R)
• M2: 435,479 km (0.095 R)
• M3: 746,493 km (0.05 R)
• M4: 1,103,883 km (0.084 R)
• M5: 1,554,023 km (0.107 R)
• M6: 2,167,673 km (0.103 R)
• M7: 2,490,805 km (0.072 R)
• M8: 2,990,461 km (0.077 R)
• M9: 3,681,604 km (0.113 R)
• M10: 4,573,207 km (0.035 R)
• M11: 4,926,407 km (0.1 R)
• M12: 5,434,891 km (0.037 R)
• M13: 5,860,796 km (0.075 R)
• M14: 6,651,869 km (0.11 R)
• M15: 7,206,429 km (0.036 R)
• M16: 7,721,195 km (0.045 R)
• M17: 9,697,832 km (0.069 R)
• M18: 11,250,059 km (0.099 R)
• M19: 12,961,459 km (0.067 R)
• M20: 13,931,601 km (0.107 R)
• M21: 15,225,323 km (0.11 R)
• M22: 16,774,559 km (0.044 R)
• M23: 19,194,304 km (0.103 R)
• M24: 20,453,470 km (0.103 R)
• M25: 24,714,615 km (0.081 R)
• M26: 26,123,977 km (0.108 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.8

Radius: 10.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.76 AU - 5.64 AU

Year: 8043 Days

Day: 11.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,535,984 km

• M1: 129,402 km (0.092 R)
• M2: 768,634 km (0.118 R)
• M3: 1,377,946 km (0.054 R)
• M4: 3,839,729 km (0.114 R)
• M5: 5,497,871 km (0.103 R)
• M6: 6,566,748 km (0.085 R)
• M7: 7,306,210 km (0.112 R)
• M8: 16,894,536 km (0.079 R)
• M9: 18,475,187 km (0.086 R)
• M10: 20,014,400 km (0.047 R)
• M11: 21,134,439 km (0.097 R)
• M12: 22,443,869 km (0.119 R)
• M13: 22,816,966 km (0.061 R)
• M14: 24,039,031 km (0.049 R)
• M15: 24,824,570 km (0.115 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 20,425 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit