🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.5

Radius: 9.4

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.84 AU - 0.86 AU

Year: 541 Days

Day: 9.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,161,178 km

• M1: 117,434 km (0.11 R)
• M2: 499,058 km (0.1 R)
• M3: 2,246,062 km (0.064 R)
• M4: 3,174,467 km (0.09 R)
• M5: 3,539,186 km (0.047 R)
• M6: 5,225,304 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.9

Radius: 11.9

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.69 AU - 1.13 AU

Year: 599 Days

Day: 5.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,161,178 km

• M1: 147,952 km (0.051 R)
• M2: 591,510 km (0.034 R)
• M3: 1,070,223 km (0.114 R)
• M4: 1,679,236 km (0.104 R)
• M5: 2,123,841 km (0.043 R)
• M6: 2,561,116 km (0.104 R)
• M7: 3,397,966 km (0.066 R)
• M8: 3,773,905 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468

Radius: 12.9

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.99 AU - 1.05 AU

Year: 711 Days

Day: 11 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,161,178 km

• M1: 160,369 km (0.106 R)
• M2: 712,086 km (0.093 R)
• M3: 1,493,436 km (0.111 R)
• M4: 1,923,679 km (0.117 R)
• M5: 2,590,736 km (0.103 R)
• M6: 3,031,601 km (0.119 R)
• M7: 4,081,479 km (0.094 R)
• M8: 4,939,722 km (0.074 R)
• M9: 5,952,050 km (0.053 R)
• M10: 7,203,437 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.9

Radius: 8.5

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.29 AU - 1.37 AU

Year: 1059 Days

Day: 14.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,161,178 km

• M1: 105,766 km (0.071 R)
• M2: 371,003 km (0.041 R)
• M3: 737,817 km (0.056 R)
• M4: 1,442,423 km (0.054 R)
• M5: 1,860,549 km (0.079 R)
• M6: 2,260,274 km (0.109 R)
• M7: 2,573,383 km (0.049 R)
• M8: 3,529,463 km (0.091 R)
• M9: 3,859,625 km (0.094 R)
• M10: 4,243,194 km (0.06 R)
• M11: 4,512,919 km (0.108 R)
• M12: 5,200,022 km (0.118 R)
• M13: 5,648,816 km (0.108 R)
• M14: 6,272,639 km (0.113 R)
• M15: 6,781,271 km (0.12 R)
• M16: 7,104,253 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.1

Radius: 13.3

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 2.11 AU - 2.67 AU

Year: 2550 Days

Day: 6.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,161,178 km

• M1: 198,816 km (0.098 R)
• M2: 713,881 km (0.073 R)
• M3: 1,178,981 km (0.035 R)
• M4: 1,930,860 km (0.117 R)
• M5: 2,358,859 km (0.064 R)
• M6: 3,382,109 km (0.118 R)
• M7: 4,147,451 km (0.12 R)
• M8: 4,776,062 km (0.12 R)
• M9: 6,736,093 km (0.048 R)
• M10: 8,721,705 km (0.103 R)
• M11: 9,726,255 km (0.098 R)
• M12: 10,545,304 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 644.2

Radius: 6.4

Gravity: 15.73 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.37 AU - 7.69 AU

Year: 14263 Days

Day: 19.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 69,161,178 km

• M1: 79,586 km (0.025 R)
• M2: 356,342 km (0.115 R)
• M3: 622,028 km (0.115 R)
• M4: 1,008,140 km (0.032 R)
• M5: 1,370,167 km (0.103 R)
• M6: 1,832,873 km (0.091 R)
• M7: 2,100,803 km (0.105 R)
• M8: 2,456,696 km (0.113 R)
• M9: 2,738,239 km (0.087 R)
• M10: 3,686,540 km (0.102 R)
• M11: 5,458,677 km (0.114 R)
• M12: 5,826,089 km (0.063 R)
• M13: 6,054,375 km (0.091 R)
• M14: 7,156,762 km (0.079 R)
• M15: 7,732,714 km (0.101 R)
• M16: 8,243,740 km (0.111 R)
• M17: 10,293,381 km (0.091 R)
• M18: 12,222,146 km (0.063 R)
• M19: 14,867,784 km (0.114 R)
• M20: 16,550,162 km (0.06 R)
• M21: 16,931,936 km (0.102 R)
• M22: 17,476,322 km (0.079 R)
• M23: 18,193,345 km (0.117 R)
• M24: 25,149,197 km (0.115 R)
• M25: 29,045,623 km (0.077 R)
• M26: 30,733,686 km (0.09 R)
• M27: 30,963,468 km (0.107 R)
• M28: 32,964,340 km (0.091 R)
• M29: 33,447,242 km (0.066 R)
• M30: 34,180,570 km (0.068 R)
• M31: 41,409,588 km (0.063 R)
• M32: 41,690,084 km (0.051 R)
• M33: 42,539,351 km (0.113 R)
• M34: 53,646,395 km (0.094 R)
• M35: 55,838,303 km (0.113 R)
• M36: 56,696,995 km (0.095 R)
• M37: 59,325,878 km (0.064 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 522.6

Radius: 5.4

Gravity: 17.92 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 6.08 AU - 9.26 AU

Year: 14662 Days

Day: 24.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 69,161,178 km

• M1: 67,469 km (0.083 R)
• M2: 257,757 km (0.046 R)
• M3: 473,028 km (0.045 R)
• M4: 660,175 km (0.116 R)
• M5: 867,368 km (0.115 R)
• M6: 1,117,795 km (0.071 R)
• M7: 1,798,466 km (0.056 R)
• M8: 2,305,902 km (0.092 R)
• M9: 2,571,887 km (0.062 R)
• M10: 2,858,067 km (0.083 R)
• M11: 3,762,536 km (0.106 R)
• M12: 3,958,509 km (0.106 R)
• M13: 4,524,887 km (0.112 R)
• M14: 4,876,741 km (0.119 R)
• M15: 6,079,957 km (0.046 R)
• M16: 6,350,430 km (0.076 R)
• M17: 8,378,079 km (0.101 R)
• M18: 9,512,181 km (0.068 R)
• M19: 12,201,801 km (0.093 R)
• M20: 14,050,980 km (0.061 R)
• M21: 14,387,575 km (0.079 R)
• M22: 19,767,115 km (0.075 R)
• M23: 21,851,312 km (0.111 R)
• M24: 22,946,369 km (0.097 R)
• M25: 24,269,711 km (0.089 R)
• M26: 25,643,020 km (0.094 R)
• M27: 26,247,096 km (0.095 R)
• M28: 27,067,341 km (0.107 R)
• M29: 34,496,970 km (0.116 R)
• M30: 35,480,576 km (0.106 R)
• M31: 40,680,598 km (0.062 R)
• M32: 44,032,488 km (0.102 R)
• M33: 46,813,063 km (0.058 R)
• M34: 47,112,409 km (0.089 R)
• M35: 48,475,096 km (0.055 R)
• M36: 49,398,114 km (0.109 R)
• M37: 52,559,417 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213.8

Radius: 7.2

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.72 AU - 9.98 AU

Year: 18173 Days

Day: 21 Hours

Environment

Temp: -240 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 69,161,178 km

• M1: 91,853 km (0.076 R)
• M2: 322,832 km (0.113 R)
• M3: 590,313 km (0.047 R)
• M4: 881,580 km (0.086 R)
• M5: 2,179,491 km (0.091 R)
• M6: 2,459,090 km (0.097 R)
• M7: 3,469,474 km (0.076 R)
• M8: 3,695,815 km (0.056 R)
• M9: 4,464,300 km (0.111 R)
• M10: 5,569,230 km (0.079 R)
• M11: 6,652,617 km (0.093 R)
• M12: 6,924,437 km (0.098 R)
• M13: 9,087,173 km (0.09 R)
• M14: 9,965,163 km (0.109 R)
• M15: 10,373,116 km (0.08 R)
• M16: 13,546,835 km (0.116 R)
• M17: 22,673,801 km (0.107 R)
• M18: 24,099,768 km (0.056 R)
• M19: 24,557,238 km (0.09 R)
• M20: 25,301,488 km (0.099 R)
• M21: 25,774,217 km (0.116 R)
• M22: 26,060,697 km (0.077 R)
• M23: 26,639,940 km (0.109 R)
• M24: 27,129,125 km (0.072 R)
• M25: 27,624,444 km (0.12 R)
• M26: 28,531,007 km (0.044 R)
• M27: 29,043,080 km (0.059 R)
• M28: 32,467,076 km (0.07 R)
• M29: 40,231,954 km (0.07 R)
• M30: 40,488,664 km (0.076 R)
• M31: 41,135,375 km (0.063 R)
• M32: 44,884,896 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 491.2

Radius: 3.6

Gravity: 37.9 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 7.49 AU - 11.67 AU

Year: 20467 Days

Day: 23.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,161,178 km

• M1: 44,730 km (0.117 R)
• M2: 186,399 km (0.113 R)
• M3: 606,021 km (0.073 R)
• M4: 1,375,253 km (0.078 R)
• M5: 1,713,045 km (0.083 R)
• M6: 1,873,863 km (0.119 R)
• M7: 3,059,276 km (0.104 R)
• M8: 3,958,360 km (0.089 R)
• M9: 5,425,765 km (0.09 R)
• M10: 6,598,313 km (0.034 R)
• M11: 9,430,500 km (0.069 R)
• M12: 15,048,648 km (0.116 R)
• M13: 16,757,355 km (0.104 R)
• M14: 17,163,065 km (0.054 R)
• M15: 18,677,593 km (0.12 R)
• M16: 21,112,897 km (0.096 R)
• M17: 22,260,163 km (0.112 R)
• M18: 26,274,622 km (0.076 R)
• M19: 27,153,809 km (0.102 R)
• M20: 28,970,675 km (0.107 R)
• M21: 31,721,780 km (0.065 R)
• M22: 50,936,130 km (0.117 R)
• M23: 54,393,038 km (0.085 R)
• M24: 61,769,559 km (0.114 R)
• M25: 62,541,933 km (0.106 R)
• M26: 69,161,190 km (0.089 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 11,347 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit