🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.1

Radius: 11.4

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.71 AU - 1.09 AU

Year: 589 Days

Day: 11.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 82,983,992 km

• M1: 142,417 km (0.117 R)
• M2: 816,206 km (0.091 R)
• M3: 1,283,999 km (0.055 R)
• M4: 1,809,685 km (0.106 R)
• M5: 2,186,223 km (0.074 R)
• M6: 2,687,376 km (0.067 R)
• M7: 3,935,770 km (0.094 R)
• M8: 4,835,901 km (0.077 R)
• M9: 5,235,776 km (0.092 R)
• M10: 6,268,151 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 967.6

Radius: 12.4

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.24 AU - 1.68 AU

Year: 1218 Days

Day: 8.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,983,992 km

• M1: 154,235 km (0.051 R)
• M2: 543,190 km (0.103 R)
• M3: 1,251,536 km (0.094 R)
• M4: 1,767,050 km (0.096 R)
• M5: 2,165,130 km (0.057 R)
• M6: 3,045,962 km (0.09 R)
• M7: 3,658,266 km (0.059 R)
• M8: 4,652,494 km (0.087 R)
• M9: 6,375,113 km (0.103 R)
• M10: 8,344,868 km (0.077 R)
• M11: 10,422,633 km (0.047 R)
• M12: 13,056,753 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.8

Radius: 11

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.41 AU - 1.83 AU

Year: 1423 Days

Day: 10.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,983,992 km

• M1: 136,882 km (0.051 R)
• M2: 636,240 km (0.105 R)
• M3: 1,095,505 km (0.104 R)
• M4: 1,740,122 km (0.113 R)
• M5: 2,154,509 km (0.099 R)
• M6: 3,172,821 km (0.082 R)
• M7: 3,842,122 km (0.104 R)
• M8: 5,930,060 km (0.069 R)
• M9: 8,580,485 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.6

Radius: 9.2

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.46 AU - 3.08 AU

Year: 3182 Days

Day: 12.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,983,992 km

• M1: 114,442 km (0.083 R)
• M2: 568,472 km (0.097 R)
• M3: 1,431,352 km (0.09 R)
• M4: 2,307,248 km (0.091 R)
• M5: 2,668,078 km (0.062 R)
• M6: 3,402,155 km (0.098 R)
• M7: 3,731,120 km (0.073 R)
• M8: 5,770,588 km (0.082 R)
• M9: 6,131,418 km (0.113 R)
• M10: 7,502,632 km (0.116 R)
• M11: 8,167,745 km (0.046 R)
• M12: 10,399,894 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.1

Radius: 5.8

Gravity: 9.28 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 7.97 AU - 10.39 AU

Year: 19199 Days

Day: 24.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,983,992 km

• M1: 74,201 km (0.049 R)
• M2: 268,079 km (0.09 R)
• M3: 677,978 km (0.079 R)
• M4: 993,629 km (0.103 R)
• M5: 3,194,513 km (0.11 R)
• M6: 3,526,022 km (0.073 R)
• M7: 5,361,737 km (0.075 R)
• M8: 6,017,724 km (0.111 R)
• M9: 6,365,090 km (0.067 R)
• M10: 8,933,087 km (0.093 R)
• M11: 9,232,881 km (0.064 R)
• M12: 12,548,419 km (0.03 R)
• M13: 12,924,658 km (0.116 R)
• M14: 13,831,520 km (0.098 R)
• M15: 14,711,006 km (0.09 R)
• M16: 15,555,336 km (0.081 R)
• M17: 17,494,723 km (0.084 R)
• M18: 17,728,395 km (0.106 R)
• M19: 18,281,757 km (0.087 R)
• M20: 19,257,136 km (0.12 R)
• M21: 21,756,617 km (0.056 R)
• M22: 22,117,447 km (0.048 R)
• M23: 22,299,358 km (0.043 R)
• M24: 23,412,067 km (0.083 R)
• M25: 24,367,249 km (0.069 R)
• M26: 27,809,047 km (0.091 R)
• M27: 32,726,180 km (0.067 R)
• M28: 37,672,185 km (0.066 R)
• M29: 38,323,534 km (0.116 R)
• M30: 44,671,420 km (0.077 R)
• M31: 45,108,096 km (0.096 R)
• M32: 46,883,673 km (0.113 R)
• M33: 48,551,839 km (0.08 R)
• M34: 49,013,498 km (0.103 R)
• M35: 55,117,839 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 661.3

Radius: 6.8

Gravity: 14.3 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.36 AU - 12.46 AU

Year: 23184 Days

Day: 23.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,983,992 km

• M1: 84,822 km (0.082 R)
• M2: 757,713 km (0.081 R)
• M3: 1,146,817 km (0.08 R)
• M4: 2,064,899 km (0.091 R)
• M5: 4,669,398 km (0.088 R)
• M6: 6,052,580 km (0.096 R)
• M7: 7,194,461 km (0.07 R)
• M8: 9,483,757 km (0.099 R)
• M9: 10,952,359 km (0.111 R)
• M10: 21,411,195 km (0.079 R)
• M11: 23,061,559 km (0.072 R)
• M12: 29,132,689 km (0.112 R)
• M13: 33,813,756 km (0.066 R)
• M14: 42,848,271 km (0.096 R)
• M15: 46,464,799 km (0.075 R)
• M16: 46,803,339 km (0.095 R)
• M17: 47,485,356 km (0.117 R)
• M18: 49,924,699 km (0.044 R)
• M19: 54,486,088 km (0.073 R)
• M20: 59,119,134 km (0.116 R)
• M21: 66,122,109 km (0.076 R)
• M22: 70,489,170 km (0.077 R)
• M23: 74,349,244 km (0.027 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 18,719 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit