🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.72 AU - 1 AU

Year: 286 Days

Day: 43 Hours

Environment

Temp: 130 °C

Axial Tilt: 18.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.93 AU - 0.95 AU

Year: 326 Days

Day: 32.7 Hours

Environment

Temp: 123 °C

Axial Tilt: 25.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.28 AU - 1.36 AU

Year: 543 Days

Day: 18.5 Hours

Environment

Temp: 1 °C

Axial Tilt: 31.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.83 AU - 3.45 AU

Year: 1993 Days

Day: 44.5 Hours

Environment

Temp: -109 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.81 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 8.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.7

Radius: 8.6

Gravity: 9.92 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 8.1 AU - 8.84 AU

Year: 8829 Days

Day: 14.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 92,217,927 km

• M1: 109,356 km (0.11 R)
• M2: 425,606 km (0.066 R)
• M3: 737,218 km (0.109 R)
• M4: 1,274,723 km (0.092 R)
• M5: 1,784,703 km (0.091 R)
• M6: 2,676,456 km (0.058 R)
• M7: 3,514,952 km (0.066 R)
• M8: 4,182,756 km (0.118 R)
• M9: 4,963,209 km (0.101 R)
• M10: 5,404,373 km (0.082 R)
• M11: 7,315,934 km (0.107 R)
• M12: 8,401,865 km (0.101 R)
• M13: 11,636,171 km (0.12 R)
• M14: 13,229,538 km (0.094 R)
• M15: 15,027,854 km (0.102 R)
• M16: 19,795,089 km (0.103 R)
• M17: 20,985,589 km (0.117 R)
• M18: 22,561,154 km (0.101 R)
• M19: 26,227,199 km (0.068 R)
• M20: 27,564,754 km (0.111 R)
• M21: 38,469,092 km (0.095 R)
• M22: 40,822,267 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.8

Radius: 14.7

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 8.41 AU - 11.75 AU

Year: 11462 Days

Day: 13.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 92,217,927 km

• M1: 221,704 km (0.086 R)
• M2: 681,119 km (0.087 R)
• M3: 1,512,584 km (0.107 R)
• M4: 2,368,882 km (0.095 R)
• M5: 3,932,479 km (0.089 R)
• M6: 7,855,384 km (0.074 R)
• M7: 8,948,047 km (0.08 R)
• M8: 12,734,070 km (0.063 R)
• M9: 14,806,898 km (0.07 R)
• M10: 15,863,807 km (0.082 R)
• M11: 20,243,434 km (0.028 R)
• M12: 21,916,238 km (0.076 R)
• M13: 23,601,158 km (0.052 R)
• M14: 28,723,240 km (0.094 R)
• M15: 29,354,693 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.7

Radius: 8.7

Gravity: 11.78 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 9.73 AU - 10.89 AU

Year: 11857 Days

Day: 13.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 92,217,927 km

• M1: 109,057 km (0.112 R)
• M2: 395,686 km (0.059 R)
• M3: 698,024 km (0.102 R)
• M4: 968,796 km (0.066 R)
• M5: 1,420,581 km (0.097 R)
• M6: 2,726,421 km (0.109 R)
• M7: 3,370,290 km (0.095 R)
• M8: 3,687,588 km (0.115 R)
• M9: 4,082,825 km (0.11 R)
• M10: 4,600,583 km (0.11 R)
• M11: 5,059,400 km (0.049 R)
• M12: 6,068,438 km (0.085 R)
• M13: 6,340,556 km (0.11 R)
• M14: 7,120,410 km (0.097 R)
• M15: 8,432,084 km (0.086 R)
• M16: 8,870,107 km (0.117 R)
• M17: 11,003,073 km (0.092 R)
• M18: 13,391,403 km (0.095 R)
• M19: 16,253,958 km (0.093 R)
• M20: 19,083,303 km (0.096 R)
• M21: 20,353,538 km (0.109 R)
• M22: 21,499,308 km (0.05 R)
• M23: 21,951,244 km (0.106 R)
• M24: 22,225,456 km (0.039 R)
• M25: 23,345,047 km (0.115 R)
• M26: 34,056,105 km (0.079 R)
• M27: 35,417,146 km (0.036 R)
• M28: 36,302,018 km (0.046 R)
• M29: 36,685,587 km (0.086 R)
• M30: 38,115,593 km (0.036 R)
• M31: 45,678,214 km (0.115 R)
• M32: 48,715,200 km (0.088 R)
• M33: 54,516,456 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 691.6

Radius: 6.8

Gravity: 14.96 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 17.61 AU - 17.69 AU

Year: 26558 Days

Day: 16.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 92,217,927 km

• M1: 84,672 km (0.081 R)
• M2: 296,503 km (0.112 R)
• M3: 866,770 km (0.099 R)
• M4: 1,439,431 km (0.054 R)
• M5: 1,685,220 km (0.099 R)
• M6: 2,378,457 km (0.103 R)
• M7: 2,622,301 km (0.118 R)
• M8: 3,103,557 km (0.098 R)
• M9: 4,383,068 km (0.094 R)
• M10: 4,789,376 km (0.082 R)
• M11: 8,040,437 km (0.07 R)
• M12: 9,468,199 km (0.095 R)
• M13: 11,057,227 km (0.08 R)
• M14: 13,039,250 km (0.074 R)
• M15: 14,351,821 km (0.106 R)
• M16: 14,754,090 km (0.096 R)
• M17: 15,496,993 km (0.07 R)
• M18: 16,613,891 km (0.113 R)
• M19: 19,103,199 km (0.085 R)
• M20: 21,411,195 km (0.053 R)
• M21: 28,419,855 km (0.102 R)
• M22: 32,920,956 km (0.053 R)
• M23: 33,903,216 km (0.036 R)
• M24: 41,494,410 km (0.096 R)
• M25: 43,471,196 km (0.045 R)
• M26: 44,143,788 km (0.049 R)
• M27: 44,823,412 km (0.051 R)
• M28: 53,530,606 km (0.032 R)
• M29: 55,279,555 km (0.063 R)
• M30: 60,545,699 km (0.106 R)
• M31: 61,384,494 km (0.062 R)
• M32: 63,299,945 km (0.076 R)
• M33: 66,580,328 km (0.071 R)
• M34: 72,296,612 km (0.117 R)
• M35: 77,590,132 km (0.07 R)
• M36: 86,269,950 km (0.108 R)
• M37: 90,569,393 km (0.103 R)
• M38: 91,116,772 km (0.103 R)

Kuiper Belt

Range: 30.6 - 48.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 347 - 10,657 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit