🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.9

Radius: 13.4

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.75 AU - 0.87 AU

Year: 486 Days

Day: 7.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,445,273 km

• M1: 166,652 km (0.065 R)
• M2: 660,624 km (0.064 R)
• M3: 1,108,969 km (0.093 R)
• M4: 1,627,326 km (0.055 R)
• M5: 2,111,574 km (0.087 R)
• M6: 2,747,066 km (0.079 R)
• M7: 3,222,488 km (0.114 R)
• M8: 3,950,431 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.4

Radius: 8.5

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.11 AU - 1.57 AU

Year: 1034 Days

Day: 10.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,445,273 km

• M1: 105,766 km (0.117 R)
• M2: 373,396 km (0.077 R)
• M3: 780,302 km (0.084 R)
• M4: 1,049,878 km (0.109 R)
• M5: 1,449,005 km (0.062 R)
• M6: 1,752,389 km (0.054 R)
• M7: 2,059,963 km (0.074 R)
• M8: 2,623,199 km (0.09 R)
• M9: 2,941,393 km (0.068 R)
• M10: 3,219,795 km (0.087 R)
• M11: 3,874,136 km (0.056 R)
• M12: 4,732,229 km (0.097 R)
• M13: 5,044,889 km (0.113 R)
• M14: 5,352,612 km (0.103 R)
• M15: 5,769,691 km (0.078 R)
• M16: 6,541,017 km (0.12 R)
• M17: 7,310,848 km (0.066 R)
• M18: 7,705,786 km (0.112 R)
• M19: 8,262,889 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.1

Radius: 11.5

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.95 AU - 4.15 AU

Year: 4460 Days

Day: 11.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,445,273 km

• M1: 146,008 km (0.118 R)
• M2: 613,351 km (0.102 R)
• M3: 1,970,054 km (0.05 R)
• M4: 2,350,482 km (0.083 R)
• M5: 3,168,932 km (0.113 R)
• M6: 3,716,759 km (0.075 R)
• M7: 5,446,858 km (0.049 R)
• M8: 6,414,158 km (0.065 R)
• M9: 6,781,720 km (0.082 R)
• M10: 7,293,794 km (0.054 R)
• M11: 7,935,269 km (0.115 R)
• M12: 9,331,167 km (0.112 R)
• M13: 11,722,938 km (0.059 R)
• M14: 12,414,678 km (0.086 R)
• M15: 14,601,949 km (0.107 R)
• M16: 15,294,587 km (0.108 R)
• M17: 17,563,837 km (0.063 R)
• M18: 19,470,462 km (0.062 R)
• M19: 22,689,359 km (0.109 R)
• M20: 24,499,045 km (0.108 R)
• M21: 24,872,142 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.1

Radius: 13.9

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.2 AU - 4.64 AU

Year: 5176 Days

Day: 7.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,445,273 km

• M1: 172,935 km (0.115 R)
• M2: 977,921 km (0.048 R)
• M3: 1,742,965 km (0.081 R)
• M4: 2,776,536 km (0.077 R)
• M5: 5,010,033 km (0.11 R)
• M6: 5,589,126 km (0.118 R)
• M7: 6,493,894 km (0.058 R)
• M8: 7,132,826 km (0.049 R)
• M9: 8,281,888 km (0.065 R)
• M10: 11,427,781 km (0.047 R)
• M11: 11,924,297 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.7

Radius: 13.8

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.56 AU - 4.94 AU

Year: 5843 Days

Day: 9.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,445,273 km

• M1: 172,636 km (0.097 R)
• M2: 958,623 km (0.103 R)
• M3: 2,369,929 km (0.101 R)
• M4: 2,853,280 km (0.096 R)
• M5: 3,441,798 km (0.062 R)
• M6: 7,191,618 km (0.109 R)
• M7: 7,865,108 km (0.097 R)
• M8: 8,840,785 km (0.076 R)
• M9: 9,574,563 km (0.073 R)
• M10: 11,341,314 km (0.074 R)
• M11: 19,820,970 km (0.081 R)
• M12: 22,319,404 km (0.06 R)
• M13: 23,900,803 km (0.027 R)
• M14: 24,718,954 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.5

Radius: 11.5

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.68 AU - 5.1 AU

Year: 6134 Days

Day: 6.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,445,273 km

• M1: 143,016 km (0.116 R)
• M2: 665,860 km (0.119 R)
• M3: 2,441,437 km (0.103 R)
• M4: 2,948,873 km (0.066 R)
• M5: 4,135,484 km (0.069 R)
• M6: 5,339,746 km (0.099 R)
• M7: 6,063,950 km (0.101 R)
• M8: 6,421,937 km (0.079 R)
• M9: 7,932,726 km (0.108 R)
• M10: 8,462,901 km (0.119 R)
• M11: 16,698,862 km (0.053 R)
• M12: 17,295,309 km (0.059 R)
• M13: 17,793,769 km (0.109 R)
• M14: 19,228,862 km (0.107 R)
• M15: 20,801,883 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708

Radius: 8

Gravity: 11.06 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 7.56 AU - 7.86 AU

Year: 14276 Days

Day: 18.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,445,273 km

• M1: 99,782 km (0.095 R)
• M2: 380,128 km (0.047 R)
• M3: 1,280,259 km (0.094 R)
• M4: 1,874,461 km (0.109 R)
• M5: 2,147,627 km (0.044 R)
• M6: 2,531,944 km (0.069 R)
• M7: 3,412,776 km (0.068 R)
• M8: 5,289,631 km (0.099 R)
• M9: 12,891,746 km (0.112 R)
• M10: 14,933,159 km (0.103 R)
• M11: 18,467,558 km (0.053 R)
• M12: 18,882,393 km (0.106 R)
• M13: 19,388,632 km (0.104 R)
• M14: 19,990,464 km (0.092 R)
• M15: 29,435,775 km (0.101 R)
• M16: 32,701,197 km (0.097 R)
• M17: 33,186,492 km (0.118 R)
• M18: 46,940,221 km (0.11 R)
• M19: 50,082,824 km (0.111 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 17,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit