🌌 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: 291.1

Radius: 11.6

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.72 AU - 1.08 AU

Year: 579 Days

Day: 14.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,513,389 km

• M1: 144,212 km (0.091 R)
• M2: 655,239 km (0.069 R)
• M3: 1,163,273 km (0.103 R)
• M4: 1,619,547 km (0.031 R)
• M5: 2,071,332 km (0.069 R)
• M6: 2,531,645 km (0.079 R)
• M7: 3,200,646 km (0.116 R)
• M8: 3,783,181 km (0.093 R)
• M9: 4,435,427 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.3

Radius: 8.8

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.92 AU - 1.08 AU

Year: 678 Days

Day: 8.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,513,389 km

• M1: 109,506 km (0.06 R)
• M2: 507,885 km (0.107 R)
• M3: 784,790 km (0.102 R)
• M4: 1,186,012 km (0.114 R)
• M5: 1,960,630 km (0.078 R)
• M6: 2,485,718 km (0.074 R)
• M7: 2,793,890 km (0.1 R)
• M8: 3,418,910 km (0.074 R)
• M9: 3,816,242 km (0.095 R)
• M10: 4,275,956 km (0.097 R)
• M11: 4,552,562 km (0.115 R)
• M12: 4,858,490 km (0.04 R)
• M13: 5,178,031 km (0.103 R)
• M14: 7,309,053 km (0.057 R)
• M15: 7,634,877 km (0.11 R)
• M16: 8,645,261 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.3

Radius: 8.1

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.14 AU - 1.24 AU

Year: 880 Days

Day: 14 Hours

Environment

Temp: -184 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,513,389 km

• M1: 104,719 km (0.091 R)
• M2: 357,838 km (0.105 R)
• M3: 631,153 km (0.116 R)
• M4: 923,318 km (0.055 R)
• M5: 1,224,608 km (0.079 R)
• M6: 1,742,217 km (0.083 R)
• M7: 2,140,446 km (0.09 R)
• M8: 2,482,726 km (0.105 R)
• M9: 3,278,138 km (0.094 R)
• M10: 3,747,277 km (0.093 R)
• M11: 5,282,899 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.2

Radius: 9

Gravity: 11.3 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.18 AU - 1.82 AU

Year: 1246 Days

Day: 14.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,513,389 km

• M1: 111,899 km (0.107 R)
• M2: 411,095 km (0.029 R)
• M3: 696,079 km (0.089 R)
• M4: 1,031,777 km (0.06 R)
• M5: 1,350,121 km (0.062 R)
• M6: 1,638,845 km (0.097 R)
• M7: 2,034,082 km (0.068 R)
• M8: 2,417,502 km (0.115 R)
• M9: 2,753,199 km (0.094 R)
• M10: 3,698,059 km (0.117 R)
• M11: 4,552,712 km (0.091 R)
• M12: 4,845,176 km (0.108 R)
• M13: 6,190,360 km (0.089 R)
• M14: 6,873,274 km (0.11 R)
• M15: 7,311,895 km (0.095 R)
• M16: 8,920,072 km (0.099 R)
• M17: 10,280,216 km (0.05 R)
• M18: 10,785,857 km (0.074 R)
• M19: 11,414,168 km (0.068 R)
• M20: 11,737,449 km (0.112 R)
• M21: 12,782,390 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.3

Radius: 11.5

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.82 AU - 4.9 AU

Year: 6175 Days

Day: 10.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,513,389 km

• M1: 143,165 km (0.119 R)
• M2: 544,536 km (0.042 R)
• M3: 1,056,011 km (0.05 R)
• M4: 1,563,447 km (0.1 R)
• M5: 2,104,992 km (0.098 R)
• M6: 2,591,035 km (0.074 R)
• M7: 3,224,582 km (0.094 R)
• M8: 4,220,156 km (0.032 R)
• M9: 5,898,943 km (0.055 R)
• M10: 9,327,876 km (0.099 R)
• M11: 11,287,010 km (0.07 R)
• M12: 13,654,546 km (0.081 R)
• M13: 15,567,304 km (0.104 R)
• M14: 17,711,490 km (0.109 R)
• M15: 18,854,268 km (0.111 R)
• M16: 21,153,438 km (0.052 R)
• M17: 21,554,061 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 527

Radius: 3.1

Gravity: 54.84 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.93 AU - 8.97 AU

Year: 16660 Days

Day: 18.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 73,513,389 km

• M1: 39,195 km (0.084 R)
• M2: 153,338 km (0.118 R)
• M3: 380,577 km (0.119 R)
• M4: 562,189 km (0.089 R)
• M5: 760,107 km (0.061 R)
• M6: 902,075 km (0.087 R)
• M7: 1,061,397 km (0.115 R)
• M8: 1,840,951 km (0.073 R)
• M9: 2,022,264 km (0.114 R)
• M10: 2,752,002 km (0.078 R)
• M11: 3,112,683 km (0.079 R)
• M12: 3,317,632 km (0.11 R)
• M13: 5,547,987 km (0.113 R)
• M14: 7,795,695 km (0.114 R)
• M15: 9,751,836 km (0.101 R)
• M16: 10,413,957 km (0.066 R)
• M17: 11,342,511 km (0.073 R)
• M18: 13,229,987 km (0.087 R)
• M19: 13,971,394 km (0.1 R)
• M20: 15,098,614 km (0.111 R)
• M21: 19,520,278 km (0.067 R)
• M22: 19,952,616 km (0.113 R)
• M23: 22,871,420 km (0.072 R)
• M24: 24,035,441 km (0.083 R)
• M25: 24,233,209 km (0.095 R)
• M26: 24,432,025 km (0.107 R)
• M27: 24,833,097 km (0.11 R)
• M28: 25,751,329 km (0.068 R)
• M29: 32,097,869 km (0.083 R)
• M30: 36,469,717 km (0.077 R)
• M31: 37,521,689 km (0.101 R)
• M32: 39,274,228 km (0.117 R)
• M33: 39,686,370 km (0.116 R)
• M34: 40,799,229 km (0.047 R)
• M35: 43,525,201 km (0.107 R)
• M36: 47,448,854 km (0.108 R)
• M37: 50,460,708 km (0.092 R)
• M38: 51,766,099 km (0.078 R)
• M39: 54,443,901 km (0.069 R)
• M40: 55,127,563 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.4

Radius: 7.6

Gravity: 12.71 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.34 AU - 10.68 AU

Year: 18343 Days

Day: 16.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,513,389 km

• M1: 94,546 km (0.112 R)
• M2: 461,659 km (0.098 R)
• M3: 774,468 km (0.108 R)
• M4: 1,571,974 km (0.103 R)
• M5: 3,135,721 km (0.116 R)
• M6: 3,966,139 km (0.117 R)
• M7: 5,891,164 km (0.053 R)
• M8: 8,062,727 km (0.101 R)
• M9: 9,776,370 km (0.085 R)
• M10: 11,784,273 km (0.056 R)
• M11: 14,052,177 km (0.103 R)
• M12: 22,275,273 km (0.044 R)
• M13: 31,068,037 km (0.117 R)
• M14: 36,984,483 km (0.078 R)
• M15: 45,983,244 km (0.09 R)
• M16: 61,269,902 km (0.062 R)
• M17: 64,847,984 km (0.11 R)
• M18: 66,482,191 km (0.117 R)
• M19: 67,725,649 km (0.061 R)
• M20: 73,073,773 km (0.112 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: 282 - 13,169 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit