🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.3

Radius: 12.8

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.42 AU - 0.64 AU

Year: 262 Days

Day: 15 Hours

Environment

Temp: -151 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,236,139 km

• M1: 159,172 km (0.1 R)
• M2: 581,487 km (0.094 R)
• M3: 1,085,033 km (0.116 R)
• M4: 1,554,023 km (0.12 R)
• M5: 2,144,186 km (0.119 R)
• M6: 2,806,755 km (0.117 R)
• M7: 3,895,529 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.7

Radius: 9.6

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.53 AU - 0.69 AU

Year: 323 Days

Day: 10.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 134.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,236,139 km

• M1: 119,379 km (0.119 R)
• M2: 435,330 km (0.059 R)
• M3: 896,690 km (0.057 R)
• M4: 1,378,993 km (0.035 R)
• M5: 1,704,219 km (0.109 R)
• M6: 2,058,467 km (0.091 R)
• M7: 2,393,865 km (0.06 R)
• M8: 2,775,190 km (0.119 R)
• M9: 3,375,227 km (0.096 R)
• M10: 3,974,965 km (0.082 R)
• M11: 4,332,354 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.6

Radius: 11.4

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.89 AU - 1.11 AU

Year: 678 Days

Day: 12.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 161.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,236,139 km

• M1: 141,819 km (0.07 R)
• M2: 556,654 km (0.106 R)
• M3: 937,530 km (0.067 R)
• M4: 1,317,209 km (0.084 R)
• M5: 2,152,863 km (0.04 R)
• M6: 2,645,489 km (0.073 R)
• M7: 3,039,530 km (0.113 R)
• M8: 3,426,689 km (0.09 R)
• M9: 3,922,307 km (0.061 R)
• M10: 4,647,856 km (0.067 R)
• M11: 5,149,159 km (0.044 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.8

Radius: 8.9

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.27 AU - 4.33 AU

Year: 6048 Days

Day: 8.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,236,139 km

• M1: 112,049 km (0.106 R)
• M2: 389,852 km (0.025 R)
• M3: 853,456 km (0.078 R)
• M4: 1,203,664 km (0.068 R)
• M5: 2,327,892 km (0.077 R)
• M6: 2,838,919 km (0.113 R)
• M7: 3,635,079 km (0.095 R)
• M8: 5,781,060 km (0.072 R)
• M9: 6,083,248 km (0.114 R)
• M10: 7,398,811 km (0.098 R)
• M11: 9,014,468 km (0.025 R)
• M12: 10,228,904 km (0.07 R)
• M13: 11,407,586 km (0.082 R)
• M14: 12,674,231 km (0.1 R)
• M15: 13,498,964 km (0.04 R)
• M16: 14,086,435 km (0.089 R)
• M17: 14,579,659 km (0.093 R)
• M18: 15,312,389 km (0.028 R)
• M19: 17,595,103 km (0.065 R)
• M20: 22,010,036 km (0.041 R)
• M21: 22,749,049 km (0.045 R)
• M22: 23,200,236 km (0.067 R)
• M23: 24,354,533 km (0.109 R)
• M24: 26,860,597 km (0.094 R)
• M25: 28,219,095 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733

Radius: 8.1

Gravity: 11.17 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.32 AU - 4.4 AU

Year: 6175 Days

Day: 10.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,236,139 km

• M1: 117,584 km (0.089 R)
• M2: 566,677 km (0.062 R)
• M3: 895,792 km (0.111 R)
• M4: 1,177,335 km (0.102 R)
• M5: 1,469,649 km (0.104 R)
• M6: 2,919,253 km (0.111 R)
• M7: 3,757,899 km (0.119 R)
• M8: 4,612,252 km (0.077 R)
• M9: 5,172,047 km (0.091 R)
• M10: 6,326,344 km (0.06 R)
• M11: 11,899,015 km (0.069 R)
• M12: 12,681,860 km (0.107 R)
• M13: 13,666,065 km (0.101 R)
• M14: 14,996,588 km (0.047 R)
• M15: 18,251,239 km (0.113 R)
• M16: 29,077,787 km (0.117 R)
• M17: 33,466,240 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819.6

Radius: 7

Gravity: 16.73 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.37 AU - 8.09 AU

Year: 11842 Days

Day: 18.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,236,139 km

• M1: 87,216 km (0.056 R)
• M2: 628,909 km (0.088 R)
• M3: 1,546,992 km (0.076 R)
• M4: 1,781,262 km (0.094 R)
• M5: 3,062,119 km (0.098 R)
• M6: 6,029,243 km (0.084 R)
• M7: 6,337,115 km (0.118 R)
• M8: 6,574,976 km (0.11 R)
• M9: 8,363,419 km (0.104 R)
• M10: 9,756,773 km (0.104 R)
• M11: 12,370,996 km (0.044 R)
• M12: 14,443,076 km (0.103 R)
• M13: 15,561,171 km (0.104 R)
• M14: 17,499,510 km (0.034 R)
• M15: 22,668,117 km (0.105 R)
• M16: 30,422,073 km (0.099 R)
• M17: 30,873,111 km (0.119 R)
• M18: 37,278,293 km (0.025 R)
• M19: 38,055,006 km (0.062 R)
• M20: 38,842,339 km (0.116 R)
• M21: 41,822,179 km (0.103 R)
• M22: 51,510,586 km (0.041 R)
• M23: 54,270,667 km (0.074 R)
• M24: 54,934,133 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305.7

Radius: 6.5

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.25 AU - 9.85 AU

Year: 16957 Days

Day: 24.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,236,139 km

• M1: 82,129 km (0.079 R)
• M2: 542,143 km (0.072 R)
• M3: 1,485,058 km (0.03 R)
• M4: 1,768,995 km (0.041 R)
• M5: 2,467,018 km (0.075 R)
• M6: 3,261,682 km (0.101 R)
• M7: 4,632,896 km (0.096 R)
• M8: 6,199,336 km (0.052 R)
• M9: 6,699,292 km (0.104 R)
• M10: 7,477,949 km (0.113 R)
• M11: 7,692,622 km (0.037 R)
• M12: 10,707,617 km (0.076 R)
• M13: 11,597,276 km (0.063 R)
• M14: 24,760,392 km (0.116 R)
• M15: 29,602,726 km (0.12 R)
• M16: 34,208,994 km (0.041 R)
• M17: 35,885,238 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.5

Radius: 6.5

Gravity: 14.76 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 9.22 AU - 9.48 AU

Year: 19391 Days

Day: 19.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,236,139 km

• M1: 83,476 km (0.114 R)
• M2: 422,913 km (0.075 R)
• M3: 730,187 km (0.103 R)
• M4: 1,090,868 km (0.076 R)
• M5: 1,454,241 km (0.081 R)
• M6: 2,357,662 km (0.082 R)
• M7: 3,174,467 km (0.094 R)
• M8: 3,589,601 km (0.099 R)
• M9: 3,977,957 km (0.106 R)
• M10: 6,439,291 km (0.105 R)
• M11: 8,832,408 km (0.046 R)
• M12: 11,569,451 km (0.042 R)
• M13: 18,819,113 km (0.093 R)
• M14: 21,300,194 km (0.115 R)
• M15: 23,272,941 km (0.088 R)
• M16: 27,920,348 km (0.12 R)
• M17: 29,319,836 km (0.057 R)
• M18: 43,461,473 km (0.087 R)
• M19: 46,135,983 km (0.085 R)
• M20: 48,253,691 km (0.118 R)
• M21: 48,751,403 km (0.105 R)
• M22: 50,776,808 km (0.111 R)
• M23: 51,636,996 km (0.108 R)
• M24: 56,634,463 km (0.086 R)
• M25: 59,250,032 km (0.04 R)
• M26: 65,934,962 km (0.115 R)
• M27: 66,138,864 km (0.119 R)
• M28: 68,618,449 km (0.1 R)
• M29: 69,669,524 km (0.066 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 14,071 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit