🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.6

Radius: 10.9

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.85 AU - 1.29 AU

Year: 726 Days

Day: 12.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,602,414 km

• M1: 135,536 km (0.028 R)
• M2: 522,396 km (0.075 R)
• M3: 881,879 km (0.109 R)
• M4: 1,369,120 km (0.071 R)
• M5: 1,811,032 km (0.041 R)
• M6: 2,272,691 km (0.102 R)
• M7: 3,159,507 km (0.03 R)
• M8: 3,741,293 km (0.079 R)
• M9: 4,219,857 km (0.11 R)
• M10: 5,418,136 km (0.088 R)
• M11: 6,480,131 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.9

Radius: 12.5

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.46 AU - 1.86 AU

Year: 1403 Days

Day: 13.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,602,414 km

• M1: 155,582 km (0.085 R)
• M2: 581,188 km (0.068 R)
• M3: 1,086,978 km (0.119 R)
• M4: 1,592,320 km (0.029 R)
• M5: 2,264,463 km (0.115 R)
• M6: 2,729,114 km (0.09 R)
• M7: 3,774,953 km (0.115 R)
• M8: 6,285,355 km (0.117 R)
• M9: 6,784,563 km (0.039 R)
• M10: 7,608,249 km (0.037 R)
• M11: 9,425,713 km (0.092 R)
• M12: 10,081,101 km (0.093 R)
• M13: 10,514,038 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.5

Radius: 9.8

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.57 AU - 2.77 AU

Year: 2862 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,602,414 km

• M1: 121,922 km (0.085 R)
• M2: 429,047 km (0.093 R)
• M3: 979,716 km (0.082 R)
• M4: 1,332,767 km (0.106 R)
• M5: 1,703,022 km (0.09 R)
• M6: 2,290,792 km (0.103 R)
• M7: 2,909,379 km (0.067 R)
• M8: 3,950,132 km (0.084 R)
• M9: 4,282,837 km (0.055 R)
• M10: 4,679,571 km (0.098 R)
• M11: 5,859,001 km (0.099 R)
• M12: 6,182,730 km (0.1 R)
• M13: 6,632,870 km (0.084 R)
• M14: 6,984,725 km (0.063 R)
• M15: 7,919,262 km (0.109 R)
• M16: 9,733,735 km (0.074 R)
• M17: 11,101,209 km (0.111 R)
• M18: 12,861,079 km (0.109 R)
• M19: 13,456,029 km (0.046 R)
• M20: 14,898,901 km (0.104 R)
• M21: 16,177,963 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.4

Radius: 10.1

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.45 AU - 3.61 AU

Year: 3460 Days

Day: 14.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,602,414 km

• M1: 125,662 km (0.06 R)
• M2: 833,859 km (0.063 R)
• M3: 1,341,145 km (0.094 R)
• M4: 1,804,300 km (0.082 R)
• M5: 2,193,554 km (0.117 R)
• M6: 2,954,408 km (0.094 R)
• M7: 3,419,957 km (0.106 R)
• M8: 3,934,125 km (0.081 R)
• M9: 4,255,760 km (0.111 R)
• M10: 6,721,732 km (0.069 R)
• M11: 9,817,959 km (0.101 R)
• M12: 10,245,509 km (0.115 R)
• M13: 12,081,374 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.3

Radius: 13

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 4.61 AU - 4.95 AU

Year: 6856 Days

Day: 10.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,602,414 km

• M1: 162,613 km (0.105 R)
• M2: 587,471 km (0.058 R)
• M3: 1,234,930 km (0.06 R)
• M4: 1,754,185 km (0.105 R)
• M5: 2,384,889 km (0.116 R)
• M6: 2,810,645 km (0.064 R)
• M7: 3,415,319 km (0.083 R)
• M8: 3,912,732 km (0.088 R)
• M9: 4,536,705 km (0.095 R)
• M10: 4,998,214 km (0.111 R)
• M11: 5,796,319 km (0.036 R)
• M12: 6,308,243 km (0.102 R)
• M13: 7,835,637 km (0.037 R)
• M14: 8,543,534 km (0.07 R)
• M15: 9,997,027 km (0.054 R)
• M16: 10,454,498 km (0.082 R)
• M17: 10,973,752 km (0.081 R)
• M18: 11,559,727 km (0.109 R)
• M19: 12,848,064 km (0.071 R)
• M20: 13,610,115 km (0.052 R)
• M21: 15,647,488 km (0.117 R)
• M22: 16,140,264 km (0.084 R)
• M23: 17,947,556 km (0.058 R)
• M24: 20,906,302 km (0.069 R)
• M25: 23,770,054 km (0.098 R)
• M26: 24,339,873 km (0.038 R)
• M27: 26,363,034 km (0.079 R)
• M28: 32,701,646 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.6

Radius: 14.2

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.72 AU - 5.72 AU

Year: 8974 Days

Day: 7.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,602,414 km

• M1: 287,228 km (0.095 R)
• M2: 1,530,685 km (0.102 R)
• M3: 2,423,934 km (0.115 R)
• M4: 3,329,899 km (0.103 R)
• M5: 5,639,989 km (0.046 R)
• M6: 6,862,653 km (0.115 R)
• M7: 9,374,700 km (0.073 R)
• M8: 17,623,377 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 445.9

Radius: 3.4

Gravity: 38.57 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.68 AU - 10.12 AU

Year: 15971 Days

Day: 22.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,602,414 km

• M1: 47,123 km (0.097 R)
• M2: 211,681 km (0.103 R)
• M3: 384,167 km (0.076 R)
• M4: 866,172 km (0.079 R)
• M5: 1,004,998 km (0.03 R)
• M6: 1,260,811 km (0.11 R)
• M7: 1,411,306 km (0.068 R)
• M8: 2,271,494 km (0.08 R)
• M9: 2,558,273 km (0.094 R)
• M10: 2,800,323 km (0.11 R)
• M11: 3,253,754 km (0.089 R)
• M12: 3,672,179 km (0.114 R)
• M13: 4,244,241 km (0.094 R)
• M14: 4,396,233 km (0.113 R)
• M15: 5,210,643 km (0.1 R)
• M16: 7,346,751 km (0.064 R)
• M17: 9,274,170 km (0.102 R)
• M18: 11,397,114 km (0.118 R)
• M19: 14,089,427 km (0.055 R)
• M20: 16,496,756 km (0.091 R)
• M21: 17,718,970 km (0.072 R)
• M22: 19,329,840 km (0.045 R)
• M23: 20,170,730 km (0.1 R)
• M24: 25,935,334 km (0.117 R)
• M25: 28,325,609 km (0.102 R)
• M26: 29,299,641 km (0.093 R)
• M27: 29,629,055 km (0.117 R)
• M28: 29,961,162 km (0.103 R)
• M29: 33,658,474 km (0.059 R)
• M30: 34,019,902 km (0.097 R)
• M31: 34,996,477 km (0.075 R)
• M32: 42,221,157 km (0.111 R)
• M33: 48,210,607 km (0.112 R)
• M34: 53,915,372 km (0.106 R)
• M35: 56,249,996 km (0.098 R)
• M36: 56,588,985 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 217.9

Radius: 7.6

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 7.64 AU - 10.46 AU

Year: 17860 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,602,414 km

• M1: 107,710 km (0.109 R)
• M2: 365,617 km (0.111 R)
• M3: 613,351 km (0.066 R)
• M4: 1,030,281 km (0.104 R)
• M5: 2,569,194 km (0.1 R)
• M6: 4,927,903 km (0.095 R)
• M7: 6,508,854 km (0.098 R)
• M8: 7,130,433 km (0.1 R)
• M9: 9,571,272 km (0.114 R)
• M10: 12,696,222 km (0.074 R)
• M11: 14,359,451 km (0.104 R)
• M12: 14,617,657 km (0.106 R)
• M13: 15,343,655 km (0.074 R)
• M14: 15,818,030 km (0.074 R)
• M15: 17,227,392 km (0.075 R)
• M16: 19,104,396 km (0.094 R)
• M17: 21,700,667 km (0.068 R)
• M18: 24,615,133 km (0.049 R)
• M19: 25,078,288 km (0.07 R)
• M20: 28,893,333 km (0.11 R)
• M21: 29,512,518 km (0.106 R)
• M22: 30,035,363 km (0.085 R)
• M23: 31,423,631 km (0.08 R)
• M24: 36,799,879 km (0.116 R)
• M25: 42,625,370 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 434.6

Radius: 3.8

Gravity: 30.1 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 9.77 AU - 10.71 AU

Year: 21496 Days

Day: 24.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,602,414 km

• M1: 73,901 km (0.118 R)
• M2: 427,401 km (0.045 R)
• M3: 1,898,247 km (0.096 R)
• M4: 2,336,120 km (0.099 R)
• M5: 2,647,733 km (0.116 R)
• M6: 3,929,038 km (0.116 R)
• M7: 6,420,142 km (0.045 R)
• M8: 6,763,769 km (0.068 R)
• M9: 9,141,178 km (0.065 R)
• M10: 11,267,562 km (0.098 R)
• M11: 12,346,462 km (0.062 R)
• M12: 12,810,066 km (0.058 R)
• M13: 13,772,130 km (0.112 R)
• M14: 20,299,085 km (0.03 R)
• M15: 23,061,409 km (0.072 R)
• M16: 38,262,797 km (0.087 R)
• M17: 55,012,373 km (0.091 R)
• M18: 61,270,950 km (0.079 R)
• M19: 61,461,836 km (0.104 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 18,128 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit