🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.8

Radius: 11.6

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.82 AU - 1.1 AU

Year: 661 Days

Day: 5.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,225,864 km

• M1: 144,212 km (0.116 R)
• M2: 525,837 km (0.106 R)
• M3: 1,004,998 km (0.115 R)
• M4: 1,562,999 km (0.082 R)
• M5: 2,825,305 km (0.038 R)
• M6: 3,574,342 km (0.081 R)
• M7: 4,265,185 km (0.108 R)
• M8: 4,659,076 km (0.081 R)
• M9: 5,234,130 km (0.106 R)
• M10: 5,612,463 km (0.062 R)
• M11: 6,086,988 km (0.052 R)
• M12: 6,691,513 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.2

Radius: 13.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.42 AU - 1.44 AU

Year: 1202 Days

Day: 14.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,225,864 km

• M1: 171,589 km (0.091 R)
• M2: 838,945 km (0.085 R)
• M3: 1,455,288 km (0.114 R)
• M4: 2,054,876 km (0.096 R)
• M5: 3,137,067 km (0.071 R)
• M6: 4,236,462 km (0.105 R)
• M7: 6,017,574 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.7

Radius: 14

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.23 AU - 1.97 AU

Year: 1423 Days

Day: 6.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,225,864 km

• M1: 175,927 km (0.114 R)
• M2: 743,651 km (0.101 R)
• M3: 1,184,217 km (0.102 R)
• M4: 1,942,977 km (0.072 R)
• M5: 2,415,856 km (0.114 R)
• M6: 3,098,022 km (0.082 R)
• M7: 3,550,705 km (0.107 R)
• M8: 4,065,771 km (0.039 R)
• M9: 4,830,515 km (0.114 R)
• M10: 6,108,231 km (0.118 R)
• M11: 8,023,532 km (0.072 R)
• M12: 8,672,488 km (0.107 R)
• M13: 9,292,571 km (0.057 R)
• M14: 11,625,251 km (0.109 R)
• M15: 12,226,484 km (0.083 R)
• M16: 12,769,525 km (0.114 R)
• M17: 13,696,732 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.9

Radius: 14

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.78 AU - 3.56 AU

Year: 3967 Days

Day: 12.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,225,864 km

• M1: 174,132 km (0.109 R)
• M2: 678,726 km (0.104 R)
• M3: 1,134,550 km (0.113 R)
• M4: 1,877,004 km (0.077 R)
• M5: 2,470,310 km (0.07 R)
• M6: 3,576,735 km (0.105 R)
• M7: 4,341,929 km (0.052 R)
• M8: 6,842,607 km (0.114 R)
• M9: 7,433,369 km (0.058 R)
• M10: 7,890,390 km (0.074 R)
• M11: 9,640,236 km (0.084 R)
• M12: 10,384,187 km (0.084 R)
• M13: 11,898,566 km (0.078 R)
• M14: 12,940,515 km (0.08 R)
• M15: 13,944,167 km (0.096 R)
• M16: 15,625,498 km (0.104 R)
• M17: 16,323,671 km (0.099 R)
• M18: 17,898,188 km (0.077 R)
• M19: 18,366,131 km (0.116 R)
• M20: 18,902,289 km (0.051 R)
• M21: 19,695,308 km (0.078 R)
• M22: 22,274,824 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.5

Radius: 9.2

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.89 AU - 4.21 AU

Year: 4702 Days

Day: 9.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,225,864 km

• M1: 133,740 km (0.072 R)
• M2: 565,330 km (0.081 R)
• M3: 1,195,885 km (0.102 R)
• M4: 1,496,876 km (0.104 R)
• M5: 1,797,269 km (0.091 R)
• M6: 2,394,912 km (0.093 R)
• M7: 3,312,097 km (0.116 R)
• M8: 3,829,107 km (0.102 R)
• M9: 5,236,973 km (0.101 R)
• M10: 6,298,669 km (0.109 R)
• M11: 7,532,103 km (0.074 R)
• M12: 13,475,477 km (0.101 R)
• M13: 15,452,562 km (0.101 R)
• M14: 17,131,799 km (0.034 R)
• M15: 20,374,332 km (0.118 R)
• M16: 20,780,939 km (0.118 R)
• M17: 24,994,663 km (0.074 R)
• M18: 27,219,183 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.4

Radius: 9.7

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.6 AU - 4.44 AU

Year: 5666 Days

Day: 6.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 78,225,864 km

• M1: 120,576 km (0.093 R)
• M2: 424,858 km (0.108 R)
• M3: 897,587 km (0.058 R)
• M4: 1,234,332 km (0.098 R)
• M5: 1,644,230 km (0.087 R)
• M6: 2,234,244 km (0.097 R)
• M7: 2,553,935 km (0.052 R)
• M8: 3,110,738 km (0.045 R)
• M9: 3,449,278 km (0.09 R)
• M10: 4,248,580 km (0.11 R)
• M11: 4,873,151 km (0.041 R)
• M12: 5,221,414 km (0.112 R)
• M13: 5,760,416 km (0.114 R)
• M14: 6,089,082 km (0.101 R)
• M15: 7,357,223 km (0.086 R)
• M16: 8,446,445 km (0.072 R)
• M17: 9,433,492 km (0.116 R)
• M18: 9,976,233 km (0.117 R)
• M19: 10,942,187 km (0.088 R)
• M20: 11,494,652 km (0.094 R)
• M21: 11,825,412 km (0.112 R)
• M22: 14,106,331 km (0.083 R)
• M23: 14,927,773 km (0.062 R)
• M24: 16,968,138 km (0.071 R)
• M25: 17,896,992 km (0.104 R)
• M26: 19,991,362 km (0.105 R)
• M27: 20,470,524 km (0.085 R)
• M28: 20,817,292 km (0.102 R)
• M29: 21,594,303 km (0.116 R)
• M30: 24,739,449 km (0.114 R)
• M31: 25,611,006 km (0.092 R)
• M32: 28,520,684 km (0.084 R)
• M33: 29,040,836 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.8

Radius: 8.2

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.86 AU - 4.68 AU

Year: 6202 Days

Day: 13.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,225,864 km

• M1: 102,175 km (0.113 R)
• M2: 580,141 km (0.057 R)
• M3: 2,157,500 km (0.092 R)
• M4: 4,437,522 km (0.052 R)
• M5: 5,892,211 km (0.086 R)
• M6: 7,055,036 km (0.08 R)
• M7: 8,257,802 km (0.091 R)
• M8: 10,474,843 km (0.067 R)
• M9: 15,127,785 km (0.076 R)
• M10: 15,554,887 km (0.096 R)
• M11: 17,577,899 km (0.117 R)
• M12: 18,229,548 km (0.118 R)
• M13: 20,669,938 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.2

Radius: 3.2

Gravity: 12.62 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 7.11 AU - 8.29 AU

Year: 15019 Days

Day: 19.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,225,864 km

• M1: 39,793 km (0.059 R)
• M2: 163,810 km (0.089 R)
• M3: 387,758 km (0.09 R)
• M4: 589,116 km (0.095 R)
• M5: 694,882 km (0.108 R)
• M6: 830,268 km (0.082 R)
• M7: 1,219,821 km (0.072 R)
• M8: 1,518,568 km (0.112 R)
• M9: 1,776,624 km (0.067 R)
• M10: 2,595,074 km (0.066 R)
• M11: 2,943,039 km (0.071 R)
• M12: 3,522,132 km (0.106 R)
• M13: 6,296,425 km (0.054 R)
• M14: 6,604,148 km (0.112 R)
• M15: 6,708,866 km (0.064 R)
• M16: 8,014,407 km (0.097 R)
• M17: 10,020,963 km (0.073 R)
• M18: 10,299,065 km (0.077 R)
• M19: 12,128,947 km (0.105 R)
• M20: 15,050,593 km (0.06 R)
• M21: 16,608,655 km (0.106 R)
• M22: 21,844,580 km (0.096 R)
• M23: 22,390,313 km (0.104 R)
• M24: 23,509,006 km (0.109 R)
• M25: 29,287,074 km (0.114 R)
• M26: 30,430,152 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 967.5

Radius: 4.6

Gravity: 45.72 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.42 AU - 10.66 AU

Year: 17543 Days

Day: 23.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 78,225,864 km

• M1: 57,146 km (0.047 R)
• M2: 359,783 km (0.099 R)
• M3: 552,166 km (0.063 R)
• M4: 834,008 km (0.102 R)
• M5: 2,125,786 km (0.096 R)
• M6: 2,341,207 km (0.069 R)
• M7: 3,704,193 km (0.119 R)
• M8: 4,346,417 km (0.052 R)
• M9: 7,469,122 km (0.098 R)
• M10: 7,765,476 km (0.094 R)
• M11: 8,756,113 km (0.11 R)
• M12: 8,974,975 km (0.111 R)
• M13: 11,694,664 km (0.053 R)
• M14: 11,960,200 km (0.091 R)
• M15: 15,308,799 km (0.062 R)
• M16: 18,687,018 km (0.117 R)
• M17: 19,325,203 km (0.037 R)
• M18: 21,623,475 km (0.099 R)
• M19: 23,253,044 km (0.118 R)
• M20: 23,567,499 km (0.12 R)
• M21: 27,331,381 km (0.042 R)
• M22: 27,916,608 km (0.081 R)
• M23: 29,233,518 km (0.062 R)
• M24: 30,341,291 km (0.068 R)
• M25: 32,119,860 km (0.117 R)
• M26: 40,834,684 km (0.11 R)
• M27: 42,999,365 km (0.082 R)
• M28: 45,893,485 km (0.114 R)
• M29: 56,852,427 km (0.107 R)
• M30: 57,997,150 km (0.074 R)
• M31: 71,399,623 km (0.098 R)
• M32: 71,620,429 km (0.094 R)
• M33: 73,179,389 km (0.095 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 156 - 10,687 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit