🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.84 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.54 AU - 1.8 AU

Year: 758 Days

Day: 15.6 Hours

Environment

Temp: -41 °C

Axial Tilt: 43.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.44 AU - 2 AU

Year: 793 Days

Day: 39.5 Hours

Environment

Temp: -37 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.99 AU - 3.21 AU

Year: 1918 Days

Day: 31.5 Hours

Environment

Temp: -88 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.64 AU - 3.96 AU

Year: 2107 Days

Day: 32.1 Hours

Environment

Temp: -97 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,560,815 km

• M1: 823,985 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.66 AU - 4.5 AU

Year: 2896 Days

Day: 34.7 Hours

Environment

Temp: -109 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.55 AU - 4.99 AU

Year: 3661 Days

Day: 15.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 4.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.4

Radius: 11.5

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.94 AU - 8.6 AU

Year: 7612 Days

Day: 12.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 97,560,815 km

• M1: 143,016 km (0.065 R)
• M2: 572,511 km (0.038 R)
• M3: 1,450,950 km (0.101 R)
• M4: 1,874,910 km (0.111 R)
• M5: 2,276,880 km (0.077 R)
• M6: 3,324,962 km (0.083 R)
• M7: 4,283,735 km (0.042 R)
• M8: 5,837,758 km (0.082 R)
• M9: 6,209,808 km (0.119 R)
• M10: 7,461,493 km (0.095 R)
• M11: 11,369,438 km (0.103 R)
• M12: 13,349,665 km (0.05 R)
• M13: 13,998,022 km (0.078 R)
• M14: 18,195,439 km (0.103 R)
• M15: 19,140,300 km (0.026 R)
• M16: 20,117,473 km (0.073 R)
• M17: 20,735,312 km (0.055 R)
• M18: 21,605,224 km (0.096 R)
• M19: 23,418,051 km (0.078 R)
• M20: 24,535,696 km (0.056 R)
• M21: 26,324,289 km (0.075 R)
• M22: 29,561,586 km (0.054 R)
• M23: 33,055,594 km (0.1 R)
• M24: 33,483,893 km (0.088 R)
• M25: 34,571,021 km (0.097 R)
• M26: 39,515,081 km (0.062 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.6

Radius: 11.7

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 7.4 AU - 10.06 AU

Year: 9066 Days

Day: 12.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 97,560,815 km

• M1: 174,282 km (0.088 R)
• M2: 663,915 km (0.076 R)
• M3: 1,171,800 km (0.063 R)
• M4: 1,934,749 km (0.082 R)
• M5: 2,513,543 km (0.051 R)
• M6: 2,983,281 km (0.117 R)
• M7: 3,967,336 km (0.088 R)
• M8: 4,405,807 km (0.071 R)
• M9: 7,589,250 km (0.104 R)
• M10: 8,399,920 km (0.119 R)
• M11: 9,698,580 km (0.052 R)
• M12: 10,143,184 km (0.095 R)
• M13: 16,457,711 km (0.09 R)
• M14: 19,090,334 km (0.101 R)
• M15: 23,108,383 km (0.103 R)
• M16: 25,828,671 km (0.1 R)
• M17: 33,326,666 km (0.109 R)
• M18: 36,195,504 km (0.119 R)
• M19: 40,229,111 km (0.112 R)
• M20: 42,027,577 km (0.111 R)
• M21: 44,824,608 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.5

Radius: 7

Gravity: 14.66 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 14.67 AU - 22.67 AU

Year: 28353 Days

Day: 20.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 97,560,815 km

• M1: 87,365 km (0.091 R)
• M2: 890,407 km (0.047 R)
• M3: 1,610,122 km (0.094 R)
• M4: 1,900,940 km (0.103 R)
• M5: 2,204,025 km (0.088 R)
• M6: 2,825,455 km (0.12 R)
• M7: 3,526,620 km (0.099 R)
• M8: 6,372,271 km (0.055 R)
• M9: 6,658,601 km (0.098 R)
• M10: 7,569,652 km (0.08 R)
• M11: 8,390,197 km (0.036 R)
• M12: 11,981,144 km (0.119 R)
• M13: 18,233,736 km (0.1 R)
• M14: 19,802,270 km (0.095 R)
• M15: 24,692,924 km (0.062 R)
• M16: 31,007,151 km (0.108 R)
• M17: 35,865,940 km (0.07 R)
• M18: 38,632,753 km (0.119 R)
• M19: 39,266,300 km (0.09 R)
• M20: 42,538,753 km (0.097 R)
• M21: 48,328,191 km (0.039 R)
• M22: 52,853,825 km (0.09 R)
• M23: 63,392,547 km (0.051 R)
• M24: 64,273,828 km (0.079 R)
• M25: 65,835,629 km (0.091 R)
• M26: 71,620,130 km (0.074 R)
• M27: 90,431,464 km (0.076 R)

Kuiper Belt

Range: 31.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 507 - 13,248 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit