🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.43 AU - 0.63 AU

Year: 245 Days

Day: 16.1 Hours

Environment

Temp: -115 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,970,512 km

• M1: 179,069 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.8

Radius: 11.5

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.83 AU - 1.07 AU

Year: 589 Days

Day: 5.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,970,512 km

• M1: 143,016 km (0.064 R)
• M2: 503,546 km (0.067 R)
• M3: 916,736 km (0.102 R)
• M4: 1,401,433 km (0.073 R)
• M5: 1,893,161 km (0.038 R)
• M6: 2,462,531 km (0.073 R)
• M7: 3,016,791 km (0.112 R)
• M8: 3,419,957 km (0.12 R)
• M9: 4,203,401 km (0.042 R)
• M10: 4,638,132 km (0.119 R)
• M11: 5,072,864 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.3

Radius: 8.5

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.52 AU - 2.76 AU

Year: 2727 Days

Day: 5.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 49,970,512 km

• M1: 105,766 km (0.089 R)
• M2: 588,368 km (0.084 R)
• M3: 895,343 km (0.043 R)
• M4: 1,164,470 km (0.118 R)
• M5: 1,460,973 km (0.111 R)
• M6: 1,951,055 km (0.047 R)
• M7: 2,272,541 km (0.086 R)
• M8: 2,917,458 km (0.106 R)
• M9: 4,567,223 km (0.06 R)
• M10: 4,900,228 km (0.101 R)
• M11: 5,876,055 km (0.1 R)
• M12: 7,762,783 km (0.088 R)
• M13: 10,442,380 km (0.101 R)
• M14: 11,021,773 km (0.055 R)
• M15: 11,737,599 km (0.111 R)
• M16: 12,284,678 km (0.082 R)
• M17: 14,599,406 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.1

Radius: 11.8

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 2.37 AU - 2.91 AU

Year: 2727 Days

Day: 9.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,970,512 km

• M1: 146,756 km (0.091 R)
• M2: 556,504 km (0.1 R)
• M3: 926,011 km (0.087 R)
• M4: 1,308,682 km (0.117 R)
• M5: 1,834,219 km (0.069 R)
• M6: 2,274,037 km (0.069 R)
• M7: 2,784,465 km (0.092 R)
• M8: 3,264,525 km (0.091 R)
• M9: 3,741,443 km (0.114 R)
• M10: 6,188,415 km (0.069 R)
• M11: 6,864,298 km (0.08 R)
• M12: 10,571,034 km (0.072 R)
• M13: 12,518,350 km (0.073 R)
• M14: 13,507,641 km (0.113 R)
• M15: 14,355,112 km (0.081 R)
• M16: 16,052,450 km (0.065 R)
• M17: 16,842,327 km (0.034 R)
• M18: 18,047,487 km (0.1 R)
• M19: 19,722,834 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.9

Radius: 10.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 5.26 AU - 6.24 AU

Year: 8767 Days

Day: 9.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,970,512 km

• M1: 125,662 km (0.091 R)
• M2: 564,134 km (0.104 R)
• M3: 1,551,480 km (0.056 R)
• M4: 1,883,288 km (0.111 R)
• M5: 2,572,485 km (0.118 R)
• M6: 3,463,490 km (0.116 R)
• M7: 4,884,819 km (0.08 R)
• M8: 5,322,243 km (0.105 R)
• M9: 6,088,783 km (0.072 R)
• M10: 7,165,588 km (0.083 R)
• M11: 7,840,724 km (0.045 R)
• M12: 14,966,369 km (0.098 R)
• M13: 17,982,562 km (0.075 R)
• M14: 18,304,945 km (0.079 R)
• M15: 19,295,133 km (0.109 R)
• M16: 20,740,847 km (0.097 R)
• M17: 23,924,290 km (0.057 R)
• M18: 24,629,494 km (0.076 R)
• M19: 25,429,394 km (0.101 R)
• M20: 26,081,641 km (0.036 R)
• M21: 27,933,064 km (0.073 R)
• M22: 28,890,790 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573.1

Radius: 6.8

Gravity: 12.39 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 5.83 AU - 8.27 AU

Year: 11902 Days

Day: 23.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,970,512 km

• M1: 84,822 km (0.093 R)
• M2: 370,105 km (0.064 R)
• M3: 857,046 km (0.028 R)
• M4: 1,184,366 km (0.05 R)
• M5: 1,465,610 km (0.112 R)
• M6: 1,791,135 km (0.109 R)
• M7: 2,237,236 km (0.11 R)
• M8: 3,111,636 km (0.057 R)
• M9: 4,195,771 km (0.116 R)
• M10: 4,517,108 km (0.105 R)
• M11: 5,685,018 km (0.108 R)
• M12: 7,454,462 km (0.102 R)
• M13: 7,752,610 km (0.082 R)
• M14: 12,212,123 km (0.077 R)
• M15: 12,868,110 km (0.101 R)
• M16: 14,120,543 km (0.087 R)
• M17: 15,315,381 km (0.091 R)
• M18: 15,589,893 km (0.059 R)
• M19: 18,986,064 km (0.106 R)
• M20: 19,462,683 km (0.102 R)
• M21: 20,110,292 km (0.052 R)
• M22: 23,113,769 km (0.091 R)
• M23: 23,748,363 km (0.108 R)
• M24: 25,915,587 km (0.108 R)
• M25: 31,514,736 km (0.077 R)
• M26: 32,182,691 km (0.111 R)
• M27: 36,026,010 km (0.115 R)
• M28: 37,248,374 km (0.061 R)
• M29: 38,371,854 km (0.037 R)
• M30: 40,034,485 km (0.111 R)
• M31: 41,611,246 km (0.103 R)
• M32: 45,309,605 km (0.065 R)
• M33: 46,589,414 km (0.064 R)
• M34: 48,039,616 km (0.104 R)
• M35: 50,270,868 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 369.4

Radius: 7.7

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 6.95 AU - 9.13 AU

Year: 14495 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,970,512 km

• M1: 134,638 km (0.062 R)
• M2: 381,774 km (0.111 R)
• M3: 743,053 km (0.11 R)
• M4: 1,262,456 km (0.062 R)
• M5: 1,871,918 km (0.08 R)
• M6: 2,271,045 km (0.072 R)
• M7: 2,725,823 km (0.063 R)
• M8: 3,558,335 km (0.116 R)
• M9: 4,824,831 km (0.112 R)
• M10: 5,306,984 km (0.106 R)
• M11: 5,680,680 km (0.098 R)
• M12: 6,035,676 km (0.108 R)
• M13: 6,330,084 km (0.11 R)
• M14: 8,948,795 km (0.107 R)
• M15: 10,391,218 km (0.072 R)
• M16: 11,982,341 km (0.052 R)
• M17: 12,987,190 km (0.066 R)
• M18: 13,603,832 km (0.066 R)
• M19: 17,646,415 km (0.075 R)
• M20: 20,306,265 km (0.113 R)
• M21: 23,582,309 km (0.084 R)
• M22: 25,727,543 km (0.077 R)
• M23: 34,666,614 km (0.111 R)
• M24: 38,302,889 km (0.117 R)
• M25: 43,946,469 km (0.105 R)
• M26: 44,221,729 km (0.115 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 13,880 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit