🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.83 AU - 1.25 AU

Year: 404 Days

Day: 25.9 Hours

Environment

Temp: -6 °C

Axial Tilt: 28.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.34 AU - 1.74 AU

Year: 728 Days

Day: 34 Hours

Environment

Temp: -64 °C

Axial Tilt: 112.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.55 AU - 1.85 AU

Year: 844 Days

Day: 38.4 Hours

Environment

Temp: -75 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.6 AU - 2.02 AU

Year: 927 Days

Day: 44.6 Hours

Environment

Temp: -61 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,705,695 km

• M1: 522,545 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.36 AU - 3.36 AU

Year: 1842 Days

Day: 39.8 Hours

Environment

Temp: -112 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.8

Radius: 8.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 4.79 AU - 5.47 AU

Year: 4425 Days

Day: 9.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 85,705,695 km

• M1: 103,671 km (0.066 R)
• M2: 817,403 km (0.055 R)
• M3: 1,082,640 km (0.076 R)
• M4: 1,501,514 km (0.05 R)
• M5: 2,940,496 km (0.117 R)
• M6: 3,325,860 km (0.078 R)
• M7: 4,234,069 km (0.093 R)
• M8: 5,712,843 km (0.076 R)
• M9: 6,266,655 km (0.103 R)
• M10: 8,172,532 km (0.113 R)
• M11: 8,755,664 km (0.038 R)
• M12: 9,149,406 km (0.076 R)
• M13: 10,103,391 km (0.067 R)
• M14: 10,536,627 km (0.09 R)
• M15: 11,227,470 km (0.053 R)
• M16: 11,948,083 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.2

Radius: 13.3

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 7.17 AU - 8.19 AU

Year: 8105 Days

Day: 13.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 85,705,695 km

• M1: 165,904 km (0.108 R)
• M2: 639,232 km (0.085 R)
• M3: 1,235,379 km (0.098 R)
• M4: 1,832,574 km (0.093 R)
• M5: 2,729,712 km (0.064 R)
• M6: 3,534,250 km (0.094 R)
• M7: 5,053,566 km (0.088 R)
• M8: 5,662,130 km (0.065 R)
• M9: 6,193,651 km (0.071 R)
• M10: 7,190,571 km (0.11 R)
• M11: 8,051,208 km (0.091 R)
• M12: 10,220,527 km (0.116 R)
• M13: 11,649,785 km (0.109 R)
• M14: 12,392,538 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368

Radius: 13.4

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 8.37 AU - 9.67 AU

Year: 10316 Days

Day: 13.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 67 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,705,695 km

• M1: 166,652 km (0.074 R)
• M2: 1,055,114 km (0.097 R)
• M3: 1,710,053 km (0.116 R)
• M4: 2,374,866 km (0.061 R)
• M5: 4,022,687 km (0.108 R)
• M6: 5,299,056 km (0.092 R)
• M7: 6,579,614 km (0.109 R)
• M8: 9,202,962 km (0.112 R)
• M9: 12,404,506 km (0.105 R)
• M10: 14,107,229 km (0.106 R)
• M11: 18,607,133 km (0.073 R)
• M12: 21,849,966 km (0.083 R)
• M13: 23,147,428 km (0.099 R)
• M14: 25,014,410 km (0.11 R)
• M15: 28,000,383 km (0.087 R)
• M16: 29,433,231 km (0.082 R)
• M17: 36,546,909 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 895

Radius: 7.2

Gravity: 17.26 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 12.48 AU - 16.42 AU

Year: 20917 Days

Day: 21.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,705,695 km

• M1: 92,601 km (0.106 R)
• M2: 334,650 km (0.106 R)
• M3: 893,847 km (0.051 R)
• M4: 1,395,449 km (0.094 R)
• M5: 2,566,800 km (0.112 R)
• M6: 3,887,600 km (0.079 R)
• M7: 4,287,176 km (0.114 R)
• M8: 4,787,431 km (0.111 R)
• M9: 5,246,697 km (0.089 R)
• M10: 5,651,508 km (0.097 R)
• M11: 8,865,469 km (0.088 R)
• M12: 10,727,514 km (0.071 R)
• M13: 19,237,538 km (0.119 R)
• M14: 19,907,587 km (0.113 R)
• M15: 20,297,439 km (0.056 R)
• M16: 21,804,937 km (0.103 R)
• M17: 24,148,687 km (0.091 R)
• M18: 26,187,107 km (0.068 R)
• M19: 33,395,630 km (0.106 R)
• M20: 43,433,647 km (0.037 R)
• M21: 50,834,553 km (0.068 R)
• M22: 64,607,431 km (0.112 R)
• M23: 69,177,945 km (0.036 R)
• M24: 78,956,410 km (0.117 R)
• M25: 83,414,875 km (0.06 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 348 - 19,127 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit