🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.5

Radius: 10.9

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.59 AU - 0.63 AU

Year: 323 Days

Day: 6.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 31,859,899 km

• M1: 135,835 km (0.084 R)
• M2: 708,795 km (0.077 R)
• M3: 1,067,979 km (0.073 R)
• M4: 1,582,147 km (0.081 R)
• M5: 2,027,350 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.3

Radius: 12.6

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.87 AU - 0.95 AU

Year: 589 Days

Day: 12.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,859,899 km

• M1: 156,629 km (0.113 R)
• M2: 733,179 km (0.092 R)
• M3: 1,147,565 km (0.069 R)
• M4: 1,675,047 km (0.098 R)
• M5: 2,301,114 km (0.117 R)
• M6: 2,849,091 km (0.071 R)
• M7: 4,386,060 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.4

Radius: 8.9

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.84 AU - 1.24 AU

Year: 719 Days

Day: 12.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,859,899 km

• M1: 111,151 km (0.111 R)
• M2: 507,735 km (0.095 R)
• M3: 794,963 km (0.087 R)
• M4: 1,247,497 km (0.103 R)
• M5: 1,572,872 km (0.041 R)
• M6: 2,144,635 km (0.106 R)
• M7: 2,550,195 km (0.094 R)
• M8: 2,981,934 km (0.088 R)
• M9: 3,613,985 km (0.086 R)
• M10: 4,022,388 km (0.076 R)
• M11: 4,542,839 km (0.055 R)
• M12: 5,472,290 km (0.099 R)
• M13: 6,031,786 km (0.044 R)
• M14: 7,447,580 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.5

Radius: 9.5

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.74 AU - 1.76 AU

Year: 1570 Days

Day: 12.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,859,899 km

• M1: 118,182 km (0.112 R)
• M2: 430,842 km (0.102 R)
• M3: 822,938 km (0.115 R)
• M4: 1,121,685 km (0.029 R)
• M5: 1,616,106 km (0.08 R)
• M6: 2,107,684 km (0.045 R)
• M7: 2,424,832 km (0.094 R)
• M8: 2,787,008 km (0.113 R)
• M9: 3,228,771 km (0.102 R)
• M10: 3,961,950 km (0.116 R)
• M11: 4,377,084 km (0.068 R)
• M12: 5,014,969 km (0.113 R)
• M13: 5,439,079 km (0.098 R)
• M14: 6,688,222 km (0.056 R)
• M15: 7,431,424 km (0.027 R)
• M16: 7,929,884 km (0.066 R)
• M17: 8,591,256 km (0.12 R)
• M18: 9,774,575 km (0.114 R)
• M19: 10,181,781 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.4

Radius: 12

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.64 AU - 3.22 AU

Year: 3402 Days

Day: 7.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,859,899 km

• M1: 149,448 km (0.115 R)
• M2: 696,976 km (0.117 R)
• M3: 2,059,215 km (0.102 R)
• M4: 3,509,865 km (0.118 R)
• M5: 4,373,643 km (0.111 R)
• M6: 5,588,079 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.1

Radius: 14.3

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.42 AU - 4.74 AU

Year: 5590 Days

Day: 9.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,859,899 km

• M1: 177,872 km (0.117 R)
• M2: 732,282 km (0.094 R)
• M3: 1,611,468 km (0.061 R)
• M4: 2,100,803 km (0.082 R)
• M5: 2,550,344 km (0.117 R)
• M6: 3,104,455 km (0.082 R)
• M7: 4,063,527 km (0.066 R)
• M8: 4,613,150 km (0.102 R)
• M9: 5,071,667 km (0.068 R)
• M10: 5,801,705 km (0.109 R)
• M11: 6,975,300 km (0.051 R)
• M12: 10,598,710 km (0.063 R)
• M13: 11,114,224 km (0.084 R)
• M14: 13,454,085 km (0.088 R)
• M15: 15,802,023 km (0.116 R)
• M16: 18,211,596 km (0.073 R)
• M17: 19,643,696 km (0.074 R)
• M18: 21,743,153 km (0.107 R)
• M19: 22,654,204 km (0.084 R)
• M20: 25,791,870 km (0.108 R)
• M21: 26,640,838 km (0.078 R)
• M22: 28,664,298 km (0.058 R)
• M23: 32,817,734 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 595.3

Radius: 8.7

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.66 AU - 5.36 AU

Year: 6496 Days

Day: 6.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 57.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 31,859,899 km

• M1: 108,159 km (0.108 R)
• M2: 420,370 km (0.115 R)
• M3: 788,830 km (0.104 R)
• M4: 1,069,026 km (0.119 R)
• M5: 1,549,535 km (0.071 R)
• M6: 1,840,652 km (0.094 R)
• M7: 2,715,201 km (0.112 R)
• M8: 3,961,950 km (0.116 R)
• M9: 4,671,792 km (0.03 R)
• M10: 5,029,032 km (0.09 R)
• M11: 5,705,962 km (0.066 R)
• M12: 6,885,392 km (0.082 R)
• M13: 7,168,281 km (0.094 R)
• M14: 7,644,451 km (0.072 R)
• M15: 7,986,432 km (0.087 R)
• M16: 8,660,221 km (0.117 R)
• M17: 9,941,078 km (0.075 R)
• M18: 11,990,868 km (0.029 R)
• M19: 12,401,215 km (0.115 R)
• M20: 13,522,900 km (0.096 R)
• M21: 14,250,394 km (0.108 R)
• M22: 16,214,165 km (0.12 R)
• M23: 22,475,135 km (0.065 R)
• M24: 25,375,090 km (0.115 R)
• M25: 27,796,481 km (0.109 R)
• M26: 31,130,419 km (0.094 R)
• M27: 33,799,395 km (0.027 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160.7

Radius: 5.6

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 5.53 AU - 7.43 AU

Year: 11188 Days

Day: 20.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,859,899 km

• M1: 92,751 km (0.099 R)
• M2: 412,741 km (0.07 R)
• M3: 695,331 km (0.105 R)
• M4: 1,786,647 km (0.102 R)
• M5: 2,562,013 km (0.027 R)
• M6: 3,266,021 km (0.098 R)
• M7: 3,541,580 km (0.027 R)
• M8: 5,833,868 km (0.091 R)
• M9: 6,304,503 km (0.094 R)
• M10: 10,649,872 km (0.111 R)
• M11: 10,880,552 km (0.096 R)
• M12: 14,526,402 km (0.082 R)
• M13: 15,155,760 km (0.114 R)
• M14: 17,985,404 km (0.076 R)
• M15: 18,710,654 km (0.088 R)
• M16: 21,220,907 km (0.101 R)
• M17: 26,305,888 km (0.097 R)
• M18: 28,548,659 km (0.094 R)
• M19: 29,083,771 km (0.029 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 400 - 14,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit