🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.7

Radius: 13

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.91 AU - 1.07 AU

Year: 668 Days

Day: 14.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,190,999 km

• M1: 161,715 km (0.085 R)
• M2: 593,156 km (0.079 R)
• M3: 1,005,746 km (0.057 R)
• M4: 1,466,508 km (0.045 R)
• M5: 1,900,940 km (0.097 R)
• M6: 2,354,521 km (0.105 R)
• M7: 2,836,974 km (0.113 R)
• M8: 3,348,150 km (0.118 R)
• M9: 4,202,204 km (0.087 R)
• M10: 4,681,217 km (0.101 R)
• M11: 5,416,789 km (0.056 R)
• M12: 6,004,111 km (0.086 R)
• M13: 6,594,274 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.7

Radius: 11.1

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.1 AU - 1.24 AU

Year: 858 Days

Day: 10.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,190,999 km

• M1: 138,228 km (0.095 R)
• M2: 510,578 km (0.087 R)
• M3: 1,439,132 km (0.11 R)
• M4: 2,498,883 km (0.119 R)
• M5: 3,092,487 km (0.083 R)
• M6: 3,548,312 km (0.117 R)
• M7: 4,173,332 km (0.091 R)
• M8: 4,579,191 km (0.082 R)
• M9: 4,958,272 km (0.105 R)
• M10: 6,733,101 km (0.104 R)
• M11: 7,836,535 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.9

Radius: 13.7

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.5 AU - 2.56 AU

Year: 2729 Days

Day: 7.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,190,999 km

• M1: 171,589 km (0.082 R)
• M2: 615,446 km (0.113 R)
• M3: 1,227,750 km (0.082 R)
• M4: 1,724,265 km (0.101 R)
• M5: 2,896,813 km (0.118 R)
• M6: 3,410,383 km (0.091 R)
• M7: 3,933,078 km (0.105 R)
• M8: 4,360,030 km (0.069 R)
• M9: 7,008,959 km (0.046 R)
• M10: 8,167,445 km (0.067 R)
• M11: 9,575,760 km (0.12 R)
• M12: 11,035,685 km (0.104 R)
• M13: 12,374,287 km (0.096 R)
• M14: 12,985,694 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.1

Radius: 13.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.45 AU - 2.67 AU

Year: 2778 Days

Day: 11.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 24,190,999 km

• M1: 163,062 km (0.105 R)
• M2: 652,247 km (0.057 R)
• M3: 1,130,661 km (0.093 R)
• M4: 1,660,237 km (0.088 R)
• M5: 2,747,066 km (0.066 R)
• M6: 3,252,856 km (0.114 R)
• M7: 3,859,475 km (0.11 R)
• M8: 4,497,062 km (0.051 R)
• M9: 5,853,465 km (0.053 R)
• M10: 6,957,348 km (0.12 R)
• M11: 7,405,543 km (0.083 R)
• M12: 8,459,909 km (0.038 R)
• M13: 9,685,116 km (0.066 R)
• M14: 10,787,203 km (0.104 R)
• M15: 11,471,165 km (0.094 R)
• M16: 12,485,737 km (0.085 R)
• M17: 13,194,831 km (0.096 R)
• M18: 13,883,879 km (0.116 R)
• M19: 14,937,647 km (0.12 R)
• M20: 16,095,534 km (0.102 R)
• M21: 16,723,097 km (0.111 R)
• M22: 17,749,937 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.7

Radius: 9.4

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.36 AU - 3.64 AU

Year: 4441 Days

Day: 6.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,190,999 km

• M1: 117,285 km (0.083 R)
• M2: 559,646 km (0.115 R)
• M3: 1,392,158 km (0.092 R)
• M4: 2,107,535 km (0.115 R)
• M5: 2,755,742 km (0.106 R)
• M6: 3,531,258 km (0.06 R)
• M7: 3,924,850 km (0.048 R)
• M8: 4,323,378 km (0.066 R)
• M9: 7,274,645 km (0.089 R)
• M10: 8,437,170 km (0.098 R)
• M11: 9,143,272 km (0.098 R)
• M12: 9,845,784 km (0.025 R)
• M13: 12,665,255 km (0.105 R)
• M14: 13,696,134 km (0.114 R)
• M15: 14,340,901 km (0.115 R)
• M16: 15,865,752 km (0.05 R)
• M17: 16,456,963 km (0.116 R)
• M18: 21,512,623 km (0.072 R)
• M19: 23,202,929 km (0.114 R)
• M20: 28,977,706 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.7

Radius: 6.6

Gravity: 14.3 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 5.24 AU - 7 AU

Year: 10269 Days

Day: 20.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 24,190,999 km

• M1: 82,129 km (0.071 R)
• M2: 1,162,824 km (0.052 R)
• M3: 1,671,906 km (0.046 R)
• M4: 1,952,851 km (0.092 R)
• M5: 2,175,003 km (0.096 R)
• M6: 2,433,359 km (0.105 R)
• M7: 3,503,133 km (0.033 R)
• M8: 6,414,457 km (0.097 R)
• M9: 7,594,037 km (0.119 R)
• M10: 9,145,217 km (0.095 R)
• M11: 10,685,926 km (0.119 R)
• M12: 11,600,567 km (0.118 R)
• M13: 11,879,118 km (0.115 R)
• M14: 12,683,207 km (0.06 R)
• M15: 13,584,384 km (0.106 R)
• M16: 14,335,515 km (0.109 R)
• M17: 16,264,729 km (0.102 R)
• M18: 16,613,891 km (0.113 R)
• M19: 19,827,103 km (0.101 R)
• M20: 20,065,712 km (0.093 R)
• M21: 28,045,562 km (0.058 R)
• M22: 28,649,039 km (0.075 R)
• M23: 29,158,570 km (0.09 R)
• M24: 30,617,299 km (0.073 R)
• M25: 34,133,148 km (0.079 R)
• M26: 40,023,863 km (0.06 R)
• M27: 44,215,745 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202.2

Radius: 6.6

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 6.07 AU - 7.47 AU

Year: 11947 Days

Day: 17.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,190,999 km

• M1: 82,129 km (0.034 R)
• M2: 404,662 km (0.105 R)
• M3: 877,541 km (0.113 R)
• M4: 2,144,037 km (0.073 R)
• M5: 2,499,182 km (0.103 R)
• M6: 4,430,491 km (0.11 R)
• M7: 4,894,094 km (0.097 R)
• M8: 5,853,914 km (0.102 R)
• M9: 7,113,528 km (0.112 R)
• M10: 10,768,952 km (0.102 R)
• M11: 14,906,829 km (0.096 R)
• M12: 19,419,300 km (0.03 R)
• M13: 19,777,736 km (0.113 R)
• M14: 21,029,870 km (0.08 R)
• M15: 22,255,825 km (0.114 R)
• M16: 23,854,278 km (0.067 R)
• M17: 30,918,290 km (0.112 R)
• M18: 33,826,173 km (0.105 R)
• M19: 34,033,216 km (0.115 R)
• M20: 34,764,451 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.3

Radius: 5.1

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 6.82 AU - 8.3 AU

Year: 14099 Days

Day: 17.4 Hours

Environment

Temp: -240 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,190,999 km

• M1: 91,404 km (0.092 R)
• M2: 839,244 km (0.076 R)
• M3: 1,037,012 km (0.112 R)
• M4: 2,175,303 km (0.074 R)
• M5: 3,025,467 km (0.033 R)
• M6: 4,188,142 km (0.056 R)
• M7: 5,675,743 km (0.065 R)
• M8: 7,094,978 km (0.098 R)
• M9: 7,683,496 km (0.105 R)
• M10: 10,992,900 km (0.056 R)
• M11: 13,611,461 km (0.067 R)
• M12: 17,072,558 km (0.039 R)
• M13: 18,546,546 km (0.104 R)
• M14: 23,616,567 km (0.044 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 15,688 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit