🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.46 AU - 0.68 AU

Year: 282 Days

Day: 21.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42

Radius: 13.1

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.69 AU - 1.01 AU

Year: 514 Days

Day: 12.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 54,095,917 km

• M1: 163,211 km (0.08 R)
• M2: 903,122 km (0.088 R)
• M3: 1,384,827 km (0.087 R)
• M4: 2,070,883 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.3

Radius: 10.1

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.99 AU - 1.45 AU

Year: 884 Days

Day: 14.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,095,917 km

• M1: 125,662 km (0.077 R)
• M2: 444,904 km (0.084 R)
• M3: 762,650 km (0.106 R)
• M4: 1,350,570 km (0.109 R)
• M5: 1,889,720 km (0.096 R)
• M6: 2,784,016 km (0.111 R)
• M7: 4,181,859 km (0.101 R)
• M8: 5,295,017 km (0.081 R)
• M9: 6,282,512 km (0.092 R)
• M10: 8,219,057 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 217.7

Radius: 11

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.52 AU - 3.08 AU

Year: 3074 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,095,917 km

• M1: 138,378 km (0.106 R)
• M2: 511,924 km (0.044 R)
• M3: 866,471 km (0.064 R)
• M4: 1,302,249 km (0.029 R)
• M5: 1,779,467 km (0.089 R)
• M6: 2,346,891 km (0.094 R)
• M7: 2,899,356 km (0.091 R)
• M8: 3,757,899 km (0.116 R)
• M9: 4,716,970 km (0.104 R)
• M10: 5,199,872 km (0.118 R)
• M11: 5,738,574 km (0.045 R)
• M12: 7,581,620 km (0.047 R)
• M13: 8,730,382 km (0.077 R)
• M14: 9,789,984 km (0.112 R)
• M15: 10,472,749 km (0.097 R)
• M16: 11,187,078 km (0.057 R)
• M17: 11,593,536 km (0.114 R)
• M18: 12,436,221 km (0.087 R)
• M19: 14,372,765 km (0.045 R)
• M20: 14,897,704 km (0.093 R)

Asteroid Belt

Center: 3.81 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.9

Radius: 12.3

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.05 AU - 5.57 AU

Year: 6920 Days

Day: 11 Hours

Environment

Temp: -216 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 54,095,917 km

• M1: 153,039 km (0.08 R)
• M2: 582,534 km (0.119 R)
• M3: 1,191,248 km (0.076 R)
• M4: 1,774,231 km (0.065 R)
• M5: 2,253,393 km (0.11 R)
• M6: 3,543,974 km (0.066 R)
• M7: 4,338,488 km (0.081 R)
• M8: 5,795,870 km (0.046 R)
• M9: 10,761,772 km (0.101 R)
• M10: 11,698,703 km (0.105 R)
• M11: 12,689,340 km (0.07 R)
• M12: 16,761,245 km (0.106 R)
• M13: 17,415,885 km (0.064 R)
• M14: 18,155,646 km (0.104 R)
• M15: 18,916,202 km (0.106 R)
• M16: 19,339,863 km (0.118 R)
• M17: 21,784,891 km (0.05 R)
• M18: 22,328,978 km (0.1 R)
• M19: 24,679,909 km (0.113 R)
• M20: 25,101,326 km (0.094 R)
• M21: 27,913,167 km (0.059 R)
• M22: 30,347,574 km (0.116 R)
• M23: 32,314,038 km (0.058 R)
• M24: 33,843,676 km (0.068 R)
• M25: 34,259,558 km (0.074 R)
• M26: 34,678,881 km (0.063 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 172.7

Radius: 6.3

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.04 AU - 7.44 AU

Year: 10226 Days

Day: 18.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,095,917 km

• M1: 78,988 km (0.074 R)
• M2: 288,574 km (0.095 R)
• M3: 592,707 km (0.072 R)
• M4: 1,036,564 km (0.04 R)
• M5: 1,787,246 km (0.105 R)
• M6: 2,237,984 km (0.104 R)
• M7: 2,567,099 km (0.086 R)
• M8: 2,966,077 km (0.088 R)
• M9: 3,220,693 km (0.053 R)
• M10: 3,662,904 km (0.038 R)
• M11: 4,590,859 km (0.096 R)
• M12: 5,755,628 km (0.051 R)
• M13: 6,406,529 km (0.114 R)
• M14: 12,250,869 km (0.078 R)
• M15: 13,219,365 km (0.101 R)
• M16: 14,738,382 km (0.101 R)
• M17: 15,365,796 km (0.037 R)
• M18: 20,126,598 km (0.093 R)
• M19: 21,617,192 km (0.07 R)
• M20: 22,650,913 km (0.101 R)
• M21: 25,136,631 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.3

Radius: 7.5

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 9.24 AU - 12.96 AU

Year: 24260 Days

Day: 24 Hours

Environment

Temp: -240 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,095,917 km

• M1: 94,845 km (0.089 R)
• M2: 397,781 km (0.105 R)
• M3: 676,182 km (0.115 R)
• M4: 1,424,022 km (0.044 R)
• M5: 2,069,537 km (0.116 R)
• M6: 2,762,624 km (0.029 R)
• M7: 3,549,509 km (0.112 R)
• M8: 4,756,464 km (0.076 R)
• M9: 5,628,769 km (0.105 R)
• M10: 6,140,544 km (0.111 R)
• M11: 6,446,621 km (0.037 R)
• M12: 7,131,031 km (0.085 R)
• M13: 7,512,655 km (0.069 R)
• M14: 8,502,545 km (0.069 R)
• M15: 9,425,414 km (0.093 R)
• M16: 12,839,536 km (0.101 R)
• M17: 14,051,578 km (0.082 R)
• M18: 14,516,828 km (0.034 R)
• M19: 14,923,734 km (0.051 R)
• M20: 20,502,687 km (0.088 R)
• M21: 27,023,210 km (0.066 R)
• M22: 29,651,196 km (0.085 R)
• M23: 31,419,891 km (0.062 R)
• M24: 33,964,850 km (0.112 R)
• M25: 39,724,219 km (0.106 R)
• M26: 40,386,937 km (0.046 R)
• M27: 44,093,524 km (0.075 R)
• M28: 48,020,767 km (0.091 R)
• M29: 50,609,558 km (0.062 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 13,407 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit