🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.5

Radius: 9.6

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.58 AU - 0.68 AU

Year: 345 Days

Day: 5.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,789,269 km

• M1: 119,529 km (0.117 R)
• M2: 437,424 km (0.084 R)
• M3: 809,474 km (0.117 R)
• M4: 1,212,491 km (0.084 R)
• M5: 1,612,665 km (0.111 R)
• M6: 2,263,117 km (0.108 R)
• M7: 2,624,844 km (0.113 R)
• M8: 3,090,243 km (0.085 R)
• M9: 3,610,096 km (0.095 R)
• M10: 3,936,369 km (0.077 R)
• M11: 4,576,498 km (0.054 R)
• M12: 5,097,248 km (0.115 R)
• M13: 5,525,397 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.1

Radius: 8.1

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.64 AU - 0.94 AU

Year: 485 Days

Day: 14 Hours

Environment

Temp: -173 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,789,269 km

• M1: 100,679 km (0.085 R)
• M2: 479,162 km (0.106 R)
• M3: 975,378 km (0.092 R)
• M4: 1,295,817 km (0.111 R)
• M5: 1,714,392 km (0.102 R)
• M6: 1,999,525 km (0.074 R)
• M7: 2,372,473 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.6

Radius: 8

Gravity: 14.1 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.34 AU - 1.36 AU

Year: 1083 Days

Day: 5.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 30,789,269 km

• M1: 102,175 km (0.113 R)
• M2: 353,799 km (0.035 R)
• M3: 611,406 km (0.109 R)
• M4: 921,373 km (0.117 R)
• M5: 1,305,092 km (0.093 R)
• M6: 1,606,083 km (0.105 R)
• M7: 1,942,828 km (0.094 R)
• M8: 2,245,913 km (0.072 R)
• M9: 3,290,854 km (0.118 R)
• M10: 3,580,775 km (0.118 R)
• M11: 4,125,161 km (0.092 R)
• M12: 4,499,605 km (0.093 R)
• M13: 4,761,700 km (0.092 R)
• M14: 5,113,554 km (0.112 R)
• M15: 5,461,818 km (0.074 R)
• M16: 5,980,474 km (0.09 R)
• M17: 6,917,256 km (0.038 R)
• M18: 7,655,372 km (0.072 R)
• M19: 8,002,738 km (0.044 R)
• M20: 11,481,637 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.9

Radius: 14.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.76 AU - 1.78 AU

Year: 1625 Days

Day: 6.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 30,789,269 km

• M1: 184,005 km (0.117 R)
• M2: 665,860 km (0.098 R)
• M3: 1,386,772 km (0.118 R)
• M4: 1,941,930 km (0.081 R)
• M5: 2,423,336 km (0.12 R)
• M6: 3,274,847 km (0.094 R)
• M7: 4,186,646 km (0.051 R)
• M8: 4,733,426 km (0.034 R)
• M9: 6,044,352 km (0.115 R)
• M10: 6,668,175 km (0.055 R)
• M11: 7,841,920 km (0.091 R)
• M12: 9,117,541 km (0.113 R)
• M13: 10,562,657 km (0.068 R)
• M14: 11,433,167 km (0.04 R)
• M15: 12,627,855 km (0.111 R)
• M16: 13,235,073 km (0.047 R)
• M17: 13,989,495 km (0.074 R)
• M18: 14,950,213 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.4

Radius: 14.6

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.01 AU - 2.09 AU

Year: 2026 Days

Day: 9.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,789,269 km

• M1: 181,612 km (0.072 R)
• M2: 1,020,856 km (0.115 R)
• M3: 1,880,146 km (0.112 R)
• M4: 3,722,893 km (0.107 R)
• M5: 4,565,877 km (0.07 R)
• M6: 5,087,375 km (0.106 R)
• M7: 5,824,892 km (0.096 R)
• M8: 6,461,282 km (0.077 R)
• M9: 9,022,248 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17

Radius: 14.7

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.9 AU - 2.32 AU

Year: 2116 Days

Day: 10.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,789,269 km

• M1: 233,073 km (0.104 R)
• M2: 705,055 km (0.094 R)
• M3: 1,338,901 km (0.099 R)
• M4: 1,865,336 km (0.092 R)
• M5: 2,612,577 km (0.118 R)
• M6: 3,418,910 km (0.117 R)
• M7: 4,533,115 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.9

Radius: 14.9

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.65 AU - 3.23 AU

Year: 3480 Days

Day: 12 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,789,269 km

• M1: 185,352 km (0.101 R)
• M2: 648,656 km (0.077 R)
• M3: 1,153,998 km (0.089 R)
• M4: 1,859,202 km (0.045 R)
• M5: 2,440,540 km (0.048 R)
• M6: 4,287,774 km (0.1 R)
• M7: 5,531,232 km (0.093 R)
• M8: 6,415,804 km (0.067 R)
• M9: 7,099,317 km (0.09 R)
• M10: 8,322,878 km (0.038 R)
• M11: 9,137,288 km (0.065 R)
• M12: 10,374,612 km (0.111 R)
• M13: 10,882,497 km (0.115 R)
• M14: 11,362,706 km (0.092 R)
• M15: 13,229,837 km (0.062 R)
• M16: 14,496,333 km (0.038 R)
• M17: 16,746,285 km (0.086 R)
• M18: 17,565,483 km (0.063 R)
• M19: 20,446,289 km (0.113 R)
• M20: 23,196,197 km (0.119 R)
• M21: 24,288,411 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.6

Radius: 6.7

Gravity: 4.54 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 4.9 AU - 6.54 AU

Year: 9443 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,789,269 km

• M1: 83,326 km (0.115 R)
• M2: 314,455 km (0.12 R)
• M3: 529,427 km (0.04 R)
• M4: 1,034,020 km (0.043 R)
• M5: 1,411,157 km (0.119 R)
• M6: 1,975,739 km (0.104 R)
• M7: 2,524,614 km (0.066 R)
• M8: 2,789,103 km (0.081 R)
• M9: 4,326,520 km (0.114 R)
• M10: 5,475,731 km (0.061 R)
• M11: 5,890,416 km (0.091 R)
• M12: 6,984,725 km (0.096 R)
• M13: 9,568,878 km (0.101 R)
• M14: 11,688,082 km (0.085 R)
• M15: 12,576,693 km (0.119 R)
• M16: 13,141,275 km (0.116 R)
• M17: 14,101,544 km (0.107 R)
• M18: 16,401,761 km (0.085 R)
• M19: 24,071,793 km (0.064 R)
• M20: 28,895,128 km (0.083 R)
• M21: 30,330,968 km (0.076 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 381 - 18,476 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit