🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.9

Radius: 12.5

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.73 AU - 1.01 AU

Year: 524 Days

Day: 12.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,219,640 km

• M1: 155,432 km (0.06 R)
• M2: 811,269 km (0.101 R)
• M3: 1,233,434 km (0.03 R)
• M4: 1,642,435 km (0.11 R)
• M5: 2,202,829 km (0.086 R)
• M6: 2,878,413 km (0.102 R)
• M7: 3,425,941 km (0.067 R)
• M8: 4,391,445 km (0.096 R)
• M9: 5,259,712 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.6

Radius: 15

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.98 AU - 1.34 AU

Year: 807 Days

Day: 14.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 21,219,640 km

• M1: 186,848 km (0.11 R)
• M2: 694,433 km (0.115 R)
• M3: 1,163,572 km (0.067 R)
• M4: 1,716,187 km (0.064 R)
• M5: 2,254,290 km (0.102 R)
• M6: 3,068,103 km (0.108 R)
• M7: 3,795,298 km (0.056 R)
• M8: 4,606,268 km (0.044 R)
• M9: 5,513,729 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.9

Radius: 14.9

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.4 AU - 1.52 AU

Year: 1139 Days

Day: 7.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,219,640 km

• M1: 186,549 km (0.044 R)
• M2: 950,994 km (0.067 R)
• M3: 1,454,839 km (0.106 R)
• M4: 2,070,135 km (0.085 R)
• M5: 2,563,060 km (0.104 R)
• M6: 3,273,501 km (0.037 R)
• M7: 4,683,161 km (0.082 R)
• M8: 5,286,340 km (0.084 R)
• M9: 5,814,271 km (0.109 R)
• M10: 6,512,594 km (0.116 R)
• M11: 7,000,881 km (0.082 R)
• M12: 7,513,703 km (0.119 R)
• M13: 8,236,560 km (0.079 R)
• M14: 8,753,271 km (0.108 R)
• M15: 9,436,933 km (0.101 R)
• M16: 10,003,161 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.3

Radius: 11.1

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.66 AU - 3.3 AU

Year: 3322 Days

Day: 12 Hours

Environment

Temp: -206 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,219,640 km

• M1: 140,772 km (0.108 R)
• M2: 553,213 km (0.053 R)
• M3: 1,041,201 km (0.09 R)
• M4: 1,452,147 km (0.107 R)
• M5: 2,257,133 km (0.076 R)
• M6: 3,565,366 km (0.073 R)
• M7: 4,691,240 km (0.058 R)
• M8: 6,195,745 km (0.107 R)
• M9: 7,631,735 km (0.042 R)
• M10: 8,971,833 km (0.118 R)
• M11: 11,150,277 km (0.1 R)
• M12: 11,624,951 km (0.106 R)
• M13: 13,839,897 km (0.05 R)
• M14: 16,678,218 km (0.073 R)
• M15: 17,352,156 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.6

Radius: 10.6

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.44 AU - 5.06 AU

Year: 5657 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,219,640 km

• M1: 147,055 km (0.115 R)
• M2: 551,867 km (0.11 R)
• M3: 936,483 km (0.095 R)
• M4: 1,744,311 km (0.091 R)
• M5: 2,331,632 km (0.081 R)
• M6: 4,428,396 km (0.083 R)
• M7: 5,306,386 km (0.1 R)
• M8: 5,648,516 km (0.055 R)
• M9: 6,878,211 km (0.069 R)
• M10: 7,256,245 km (0.112 R)
• M11: 8,639,726 km (0.066 R)
• M12: 11,073,234 km (0.116 R)
• M13: 11,512,454 km (0.081 R)
• M14: 13,657,238 km (0.108 R)
• M15: 14,871,973 km (0.1 R)
• M16: 16,055,891 km (0.053 R)
• M17: 16,931,786 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.3

Radius: 8.6

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 4.55 AU - 5.59 AU

Year: 7371 Days

Day: 12.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,219,640 km

• M1: 107,112 km (0.063 R)
• M2: 456,274 km (0.117 R)
• M3: 807,230 km (0.091 R)
• M4: 1,314,816 km (0.109 R)
• M5: 1,839,455 km (0.077 R)
• M6: 5,240,264 km (0.053 R)
• M7: 5,709,403 km (0.073 R)
• M8: 9,815,864 km (0.116 R)
• M9: 11,379,611 km (0.106 R)
• M10: 14,564,998 km (0.115 R)
• M11: 15,241,629 km (0.07 R)
• M12: 15,682,943 km (0.098 R)
• M13: 21,824,385 km (0.094 R)
• M14: 22,224,110 km (0.099 R)
• M15: 23,871,931 km (0.081 R)
• M16: 27,874,571 km (0.114 R)
• M17: 29,109,202 km (0.089 R)
• M18: 34,629,663 km (0.07 R)
• M19: 36,502,180 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.5

Radius: 14.8

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.36 AU - 7.2 AU

Year: 8972 Days

Day: 8.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 59.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,219,640 km

• M1: 184,005 km (0.101 R)
• M2: 894,745 km (0.1 R)
• M3: 1,443,320 km (0.118 R)
• M4: 2,630,080 km (0.033 R)
• M5: 3,574,940 km (0.085 R)
• M6: 5,727,654 km (0.088 R)
• M7: 6,695,103 km (0.08 R)
• M8: 7,944,096 km (0.033 R)
• M9: 10,720,333 km (0.099 R)
• M10: 11,495,400 km (0.073 R)
• M11: 12,032,755 km (0.106 R)
• M12: 12,870,204 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 317.1

Radius: 8

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 9.25 AU - 10.27 AU

Year: 19687 Days

Day: 19.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 21,219,640 km

• M1: 99,632 km (0.082 R)
• M2: 653,443 km (0.098 R)
• M3: 1,086,529 km (0.097 R)
• M4: 1,781,860 km (0.102 R)
• M5: 2,405,085 km (0.115 R)
• M6: 3,417,713 km (0.086 R)
• M7: 4,500,353 km (0.118 R)
• M8: 5,504,753 km (0.077 R)
• M9: 6,449,912 km (0.053 R)
• M10: 6,856,818 km (0.09 R)
• M11: 18,463,220 km (0.063 R)
• M12: 20,387,347 km (0.073 R)
• M13: 20,647,947 km (0.077 R)
• M14: 24,045,763 km (0.083 R)
• M15: 24,826,515 km (0.09 R)
• M16: 27,481,129 km (0.057 R)
• M17: 31,230,051 km (0.052 R)
• M18: 33,106,906 km (0.104 R)
• M19: 38,521,003 km (0.117 R)
• M20: 48,548,847 km (0.05 R)
• M21: 49,638,219 km (0.025 R)
• M22: 56,007,049 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 12.6

Radius: 5.9

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.5 AU - 11.34 AU

Year: 21718 Days

Day: 16.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,219,640 km

• M1: 73,453 km (0.11 R)
• M2: 799,301 km (0.075 R)
• M3: 1,766,452 km (0.072 R)
• M4: 2,911,623 km (0.077 R)
• M5: 3,927,991 km (0.092 R)
• M6: 4,220,605 km (0.092 R)
• M7: 4,686,752 km (0.06 R)
• M8: 5,386,122 km (0.084 R)
• M9: 6,433,456 km (0.11 R)
• M10: 7,080,766 km (0.103 R)
• M11: 8,131,691 km (0.066 R)
• M12: 8,469,783 km (0.102 R)
• M13: 10,381,045 km (0.06 R)
• M14: 12,832,057 km (0.109 R)
• M15: 17,137,483 km (0.106 R)
• M16: 18,032,378 km (0.027 R)
• M17: 18,607,432 km (0.085 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 12,360 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit