🌌 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: 721.9

Radius: 12.2

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.66 AU - 0.96 AU

Year: 503 Days

Day: 9.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,592,555 km

• M1: 151,842 km (0.12 R)
• M2: 531,222 km (0.102 R)
• M3: 1,049,429 km (0.112 R)
• M4: 1,472,492 km (0.066 R)
• M5: 1,952,402 km (0.072 R)
• M6: 2,720,886 km (0.103 R)
• M7: 3,668,738 km (0.099 R)
• M8: 4,840,688 km (0.074 R)
• M9: 5,582,394 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.3

Radius: 12.5

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.79 AU - 1.13 AU

Year: 649 Days

Day: 9.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,592,555 km

• M1: 155,432 km (0.105 R)
• M2: 617,540 km (0.103 R)
• M3: 1,063,192 km (0.12 R)
• M4: 1,500,766 km (0.119 R)
• M5: 1,942,828 km (0.109 R)
• M6: 2,366,638 km (0.061 R)
• M7: 2,756,640 km (0.073 R)
• M8: 4,711,136 km (0.101 R)
• M9: 5,419,183 km (0.096 R)
• M10: 6,050,187 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.6

Radius: 12.9

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.2 AU - 1.92 AU

Year: 1345 Days

Day: 6.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,592,555 km

• M1: 160,519 km (0.092 R)
• M2: 593,455 km (0.096 R)
• M3: 1,132,306 km (0.11 R)
• M4: 1,617,452 km (0.11 R)
• M5: 2,111,424 km (0.091 R)
• M6: 2,809,149 km (0.084 R)
• M7: 3,336,481 km (0.068 R)
• M8: 3,815,194 km (0.105 R)
• M9: 4,446,797 km (0.099 R)
• M10: 5,876,504 km (0.057 R)
• M11: 6,579,015 km (0.069 R)
• M12: 7,061,319 km (0.119 R)
• M13: 7,541,528 km (0.093 R)
• M14: 8,399,621 km (0.08 R)
• M15: 9,623,332 km (0.069 R)
• M16: 10,535,430 km (0.095 R)
• M17: 11,197,550 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.3

Radius: 13.2

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 3.86 AU - 4.36 AU

Year: 5751 Days

Day: 14.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,592,555 km

• M1: 164,857 km (0.08 R)
• M2: 595,250 km (0.063 R)
• M3: 1,406,220 km (0.106 R)
• M4: 2,202,679 km (0.105 R)
• M5: 3,156,515 km (0.097 R)
• M6: 4,040,040 km (0.032 R)
• M7: 5,140,482 km (0.12 R)
• M8: 8,326,617 km (0.093 R)
• M9: 8,779,899 km (0.111 R)
• M10: 10,147,224 km (0.098 R)
• M11: 11,003,821 km (0.067 R)
• M12: 12,325,668 km (0.094 R)
• M13: 13,921,877 km (0.1 R)
• M14: 14,740,177 km (0.108 R)
• M15: 15,590,192 km (0.108 R)
• M16: 18,824,798 km (0.115 R)
• M17: 20,339,027 km (0.098 R)
• M18: 21,392,795 km (0.065 R)
• M19: 26,149,109 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.3

Radius: 12.3

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.31 AU - 5.35 AU

Year: 8494 Days

Day: 11.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,592,555 km

• M1: 153,039 km (0.116 R)
• M2: 648,357 km (0.116 R)
• M3: 1,049,279 km (0.105 R)
• M4: 1,449,753 km (0.084 R)
• M5: 1,896,303 km (0.063 R)
• M6: 2,667,330 km (0.094 R)
• M7: 3,095,330 km (0.026 R)
• M8: 3,944,148 km (0.041 R)
• M9: 4,802,092 km (0.082 R)
• M10: 5,350,218 km (0.113 R)
• M11: 6,572,433 km (0.101 R)
• M12: 7,510,412 km (0.045 R)
• M13: 8,051,507 km (0.088 R)
• M14: 8,827,172 km (0.054 R)
• M15: 12,597,038 km (0.085 R)
• M16: 13,250,931 km (0.099 R)
• M17: 16,865,514 km (0.109 R)
• M18: 18,549,089 km (0.099 R)
• M19: 22,247,747 km (0.085 R)
• M20: 23,446,923 km (0.093 R)
• M21: 31,761,573 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.9

Radius: 11.1

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.79 AU - 5.91 AU

Year: 8542 Days

Day: 9 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,592,555 km

• M1: 143,016 km (0.115 R)
• M2: 2,417,502 km (0.088 R)
• M3: 3,751,466 km (0.051 R)
• M4: 7,800,033 km (0.099 R)
• M5: 8,372,843 km (0.107 R)
• M6: 9,110,810 km (0.101 R)
• M7: 10,001,515 km (0.069 R)
• M8: 11,873,284 km (0.067 R)
• M9: 13,288,629 km (0.092 R)
• M10: 15,346,797 km (0.055 R)
• M11: 19,045,903 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.7

Radius: 7.7

Gravity: 14.13 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.33 AU - 9.43 AU

Year: 18265 Days

Day: 16.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,592,555 km

• M1: 96,640 km (0.069 R)
• M2: 637,137 km (0.079 R)
• M3: 1,424,770 km (0.091 R)
• M4: 1,774,979 km (0.112 R)
• M5: 2,223,772 km (0.115 R)
• M6: 2,795,087 km (0.06 R)
• M7: 5,177,433 km (0.097 R)
• M8: 6,051,383 km (0.094 R)
• M9: 18,771,690 km (0.119 R)
• M10: 19,498,138 km (0.05 R)
• M11: 21,298,249 km (0.095 R)
• M12: 25,886,864 km (0.089 R)
• M13: 27,590,634 km (0.077 R)
• M14: 34,477,672 km (0.095 R)
• M15: 36,118,910 km (0.115 R)
• M16: 36,397,461 km (0.066 R)
• M17: 36,817,981 km (0.1 R)
• M18: 43,993,891 km (0.066 R)
• M19: 50,122,467 km (0.06 R)
• M20: 67,353,150 km (0.111 R)
• M21: 68,624,732 km (0.091 R)
• M22: 75,450,883 km (0.113 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: 154 - 15,329 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit