🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.1

Radius: 10.4

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.62 AU - 0.92 AU

Year: 466 Days

Day: 7.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 126.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,727,321 km

• M1: 129,402 km (0.094 R)
• M2: 492,177 km (0.049 R)
• M3: 1,013,675 km (0.115 R)
• M4: 1,351,168 km (0.08 R)
• M5: 2,092,874 km (0.104 R)
• M6: 2,936,905 km (0.112 R)
• M7: 4,551,814 km (0.109 R)
• M8: 4,962,610 km (0.111 R)
• M9: 5,413,947 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.3

Radius: 10.6

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.93 AU - 1.03 AU

Year: 670 Days

Day: 7.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,727,321 km

• M1: 131,796 km (0.063 R)
• M2: 462,257 km (0.077 R)
• M3: 838,197 km (0.118 R)
• M4: 1,337,704 km (0.113 R)
• M5: 1,669,512 km (0.077 R)
• M6: 2,854,627 km (0.104 R)
• M7: 3,375,975 km (0.109 R)
• M8: 4,314,552 km (0.045 R)
• M9: 5,037,110 km (0.077 R)
• M10: 5,989,300 km (0.056 R)
• M11: 6,599,510 km (0.063 R)
• M12: 7,294,093 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.1

Radius: 9.7

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.24 AU - 1.58 AU

Year: 1156 Days

Day: 12.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,727,321 km

• M1: 121,174 km (0.05 R)
• M2: 598,391 km (0.106 R)
• M3: 906,114 km (0.1 R)
• M4: 1,689,708 km (0.054 R)
• M5: 2,077,466 km (0.071 R)
• M6: 2,662,244 km (0.075 R)
• M7: 3,203,489 km (0.08 R)
• M8: 3,886,403 km (0.118 R)
• M9: 4,429,144 km (0.12 R)
• M10: 4,759,157 km (0.076 R)
• M11: 5,173,543 km (0.035 R)
• M12: 5,849,726 km (0.026 R)
• M13: 6,848,142 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219

Radius: 8.6

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.85 AU - 1.87 AU

Year: 1751 Days

Day: 6.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,727,321 km

• M1: 108,010 km (0.101 R)
• M2: 375,640 km (0.026 R)
• M3: 655,239 km (0.044 R)
• M4: 954,135 km (0.069 R)
• M5: 1,265,000 km (0.07 R)
• M6: 1,652,757 km (0.049 R)
• M7: 1,977,085 km (0.103 R)
• M8: 2,526,259 km (0.085 R)
• M9: 3,256,746 km (0.077 R)
• M10: 5,017,513 km (0.07 R)
• M11: 5,745,157 km (0.084 R)
• M12: 6,541,167 km (0.087 R)
• M13: 7,215,105 km (0.117 R)
• M14: 9,778,764 km (0.083 R)
• M15: 10,106,683 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.6

Radius: 12.5

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.14 AU - 3.42 AU

Year: 3199 Days

Day: 10.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,727,321 km

• M1: 155,432 km (0.087 R)
• M2: 714,629 km (0.084 R)
• M3: 1,285,195 km (0.083 R)
• M4: 1,727,407 km (0.117 R)
• M5: 2,258,629 km (0.064 R)
• M6: 2,707,871 km (0.091 R)
• M7: 3,485,930 km (0.099 R)
• M8: 4,473,276 km (0.116 R)
• M9: 5,360,989 km (0.061 R)
• M10: 5,768,344 km (0.078 R)
• M11: 6,908,280 km (0.087 R)
• M12: 7,642,058 km (0.119 R)
• M13: 8,292,659 km (0.082 R)
• M14: 8,769,876 km (0.085 R)
• M15: 10,273,933 km (0.119 R)
• M16: 11,604,456 km (0.096 R)
• M17: 12,245,932 km (0.06 R)
• M18: 14,458,784 km (0.114 R)
• M19: 16,074,590 km (0.075 R)
• M20: 20,636,727 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.6

Radius: 10.2

Gravity: 9.27 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.14 AU - 4.34 AU

Year: 4993 Days

Day: 10.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,727,321 km

• M1: 127,607 km (0.106 R)
• M2: 510,578 km (0.101 R)
• M3: 890,257 km (0.04 R)
• M4: 1,241,064 km (0.06 R)
• M5: 2,569,343 km (0.065 R)
• M6: 3,969,729 km (0.114 R)
• M7: 4,516,809 km (0.095 R)
• M8: 5,085,131 km (0.081 R)
• M9: 5,519,862 km (0.109 R)
• M10: 6,074,122 km (0.078 R)
• M11: 6,597,715 km (0.099 R)
• M12: 10,167,569 km (0.106 R)
• M13: 17,764,298 km (0.049 R)
• M14: 18,361,792 km (0.098 R)
• M15: 19,737,494 km (0.033 R)
• M16: 22,848,083 km (0.078 R)
• M17: 26,186,060 km (0.112 R)
• M18: 30,115,547 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.1

Radius: 8.9

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.14 AU - 5.3 AU

Year: 8232 Days

Day: 5.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 44,727,321 km

• M1: 112,647 km (0.115 R)
• M2: 438,621 km (0.066 R)
• M3: 814,560 km (0.117 R)
• M4: 1,141,731 km (0.118 R)
• M5: 1,557,015 km (0.092 R)
• M6: 1,959,882 km (0.04 R)
• M7: 2,395,361 km (0.088 R)
• M8: 3,104,156 km (0.108 R)
• M9: 4,231,675 km (0.099 R)
• M10: 5,389,263 km (0.036 R)
• M11: 6,178,242 km (0.114 R)
• M12: 7,004,621 km (0.116 R)
• M13: 9,322,790 km (0.117 R)
• M14: 9,644,575 km (0.105 R)
• M15: 10,555,775 km (0.096 R)
• M16: 10,905,685 km (0.118 R)
• M17: 14,229,600 km (0.117 R)
• M18: 15,218,591 km (0.041 R)
• M19: 16,385,156 km (0.102 R)
• M20: 16,922,362 km (0.049 R)
• M21: 18,245,405 km (0.089 R)
• M22: 22,709,555 km (0.116 R)
• M23: 23,209,362 km (0.051 R)
• M24: 24,577,733 km (0.118 R)
• M25: 29,692,335 km (0.107 R)
• M26: 31,099,153 km (0.093 R)
• M27: 32,972,567 km (0.111 R)
• M28: 33,937,025 km (0.117 R)
• M29: 37,057,487 km (0.076 R)
• M30: 37,750,275 km (0.084 R)
• M31: 38,924,020 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 538.1

Radius: 4.5

Gravity: 26.57 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.64 AU - 6.38 AU

Year: 10170 Days

Day: 22.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 44,727,321 km

• M1: 56,249 km (0.119 R)
• M2: 295,306 km (0.048 R)
• M3: 1,068,428 km (0.073 R)
• M4: 1,214,436 km (0.093 R)
• M5: 1,506,002 km (0.116 R)
• M6: 1,661,284 km (0.113 R)
• M7: 3,112,234 km (0.064 R)
• M8: 3,887,301 km (0.113 R)
• M9: 5,474,085 km (0.06 R)
• M10: 6,086,838 km (0.086 R)
• M11: 7,985,385 km (0.042 R)
• M12: 8,637,332 km (0.097 R)
• M13: 10,497,731 km (0.056 R)
• M14: 11,821,224 km (0.115 R)
• M15: 14,477,184 km (0.053 R)
• M16: 15,378,212 km (0.084 R)
• M17: 16,179,758 km (0.075 R)
• M18: 18,084,587 km (0.093 R)
• M19: 19,743,179 km (0.091 R)
• M20: 21,011,171 km (0.114 R)
• M21: 22,164,421 km (0.082 R)
• M22: 22,501,465 km (0.053 R)
• M23: 23,620,756 km (0.097 R)
• M24: 24,416,916 km (0.099 R)
• M25: 27,296,525 km (0.069 R)
• M26: 28,867,752 km (0.07 R)
• M27: 29,472,127 km (0.063 R)
• M28: 35,987,713 km (0.062 R)
• M29: 36,570,396 km (0.111 R)
• M30: 36,805,115 km (0.073 R)
• M31: 42,358,188 km (0.04 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 499 - 20,214 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit