🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.91 AU - 1.43 AU

Year: 460 Days

Day: 17.3 Hours

Environment

Temp: -2 °C

Axial Tilt: 21.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 83,519,758 km

• M1: 75,846 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.38 AU - 1.54 AU

Year: 641 Days

Day: 21.6 Hours

Environment

Temp: -32 °C

Axial Tilt: 49.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,519,758 km

• M1: 36,801 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.44

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.41 AU - 1.91 AU

Year: 777 Days

Day: 13.2 Hours

Environment

Temp: -48 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.69 AU - 1.79 AU

Year: 834 Days

Day: 47.2 Hours

Environment

Temp: -43 °C

Axial Tilt: 67.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 83,519,758 km

• M1: 112,498 km (0.094 R)
• M2: 456,274 km (0.069 R)

Asteroid Belt

Center: 3.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.6

Radius: 14.1

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.2 AU - 6.02 AU

Year: 4198 Days

Day: 9.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,519,758 km

• M1: 175,628 km (0.097 R)
• M2: 757,414 km (0.084 R)
• M3: 1,635,554 km (0.05 R)
• M4: 2,335,073 km (0.11 R)
• M5: 3,863,515 km (0.085 R)
• M6: 4,580,986 km (0.098 R)
• M7: 5,188,353 km (0.047 R)
• M8: 5,665,870 km (0.099 R)
• M9: 7,247,568 km (0.084 R)
• M10: 8,753,869 km (0.098 R)
• M11: 9,581,145 km (0.058 R)
• M12: 10,381,494 km (0.051 R)
• M13: 11,391,878 km (0.068 R)
• M14: 14,571,281 km (0.09 R)
• M15: 15,019,028 km (0.073 R)
• M16: 15,630,285 km (0.096 R)
• M17: 16,957,367 km (0.114 R)
• M18: 17,453,135 km (0.071 R)
• M19: 18,015,324 km (0.118 R)
• M20: 19,413,914 km (0.071 R)
• M21: 20,017,541 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.3

Radius: 11.5

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.18 AU - 7.76 AU

Year: 5981 Days

Day: 15 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,519,758 km

• M1: 143,464 km (0.058 R)
• M2: 931,546 km (0.077 R)
• M3: 1,845,888 km (0.104 R)
• M4: 2,375,913 km (0.117 R)
• M5: 3,539,037 km (0.095 R)
• M6: 4,001,444 km (0.082 R)
• M7: 5,390,759 km (0.066 R)
• M8: 5,804,996 km (0.075 R)
• M9: 7,542,874 km (0.113 R)
• M10: 8,754,019 km (0.049 R)
• M11: 9,172,444 km (0.119 R)
• M12: 15,734,854 km (0.077 R)
• M13: 17,404,067 km (0.095 R)
• M14: 18,067,084 km (0.103 R)
• M15: 18,746,857 km (0.104 R)
• M16: 20,157,715 km (0.083 R)
• M17: 22,616,954 km (0.091 R)
• M18: 25,423,261 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 584

Radius: 7.9

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 17.75 AU - 17.83 AU

Year: 27271 Days

Day: 20.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,519,758 km

• M1: 98,585 km (0.037 R)
• M2: 357,389 km (0.116 R)
• M3: 706,102 km (0.059 R)
• M4: 1,107,623 km (0.101 R)
• M5: 1,728,753 km (0.107 R)
• M6: 1,981,723 km (0.099 R)
• M7: 2,237,236 km (0.104 R)
• M8: 2,514,890 km (0.077 R)
• M9: 3,084,558 km (0.081 R)
• M10: 4,443,057 km (0.093 R)
• M11: 4,734,174 km (0.088 R)
• M12: 5,559,805 km (0.041 R)
• M13: 7,046,209 km (0.117 R)
• M14: 8,066,317 km (0.083 R)
• M15: 11,376,020 km (0.092 R)
• M16: 12,344,218 km (0.115 R)
• M17: 15,828,352 km (0.114 R)
• M18: 18,114,058 km (0.1 R)
• M19: 18,391,263 km (0.113 R)
• M20: 20,212,916 km (0.08 R)
• M21: 21,116,338 km (0.112 R)
• M22: 29,719,263 km (0.089 R)
• M23: 31,548,396 km (0.097 R)
• M24: 33,589,958 km (0.055 R)
• M25: 34,008,533 km (0.062 R)
• M26: 40,397,858 km (0.059 R)
• M27: 40,713,061 km (0.102 R)
• M28: 49,858,577 km (0.116 R)
• M29: 52,061,705 km (0.028 R)
• M30: 55,292,719 km (0.058 R)
• M31: 62,993,270 km (0.066 R)
• M32: 77,283,158 km (0.086 R)
• M33: 80,229,338 km (0.112 R)
• M34: 81,478,779 km (0.096 R)
• M35: 84,530,277 km (0.06 R)
• M36: 85,823,850 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 471.2

Radius: 7.6

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 15.31 AU - 20.67 AU

Year: 27732 Days

Day: 22.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 120.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 83,519,758 km

• M1: 94,695 km (0.074 R)
• M2: 622,776 km (0.115 R)
• M3: 1,429,557 km (0.086 R)
• M4: 1,700,329 km (0.088 R)
• M5: 2,087,339 km (0.106 R)
• M6: 2,727,020 km (0.065 R)
• M7: 3,431,626 km (0.089 R)
• M8: 6,498,681 km (0.064 R)
• M9: 7,008,959 km (0.11 R)
• M10: 8,161,910 km (0.09 R)
• M11: 10,398,099 km (0.107 R)
• M12: 11,960,649 km (0.053 R)
• M13: 12,235,460 km (0.091 R)
• M14: 13,974,386 km (0.097 R)
• M15: 15,221,284 km (0.112 R)
• M16: 15,463,184 km (0.117 R)
• M17: 16,287,767 km (0.084 R)
• M18: 18,660,390 km (0.081 R)
• M19: 19,217,342 km (0.114 R)
• M20: 21,254,117 km (0.102 R)
• M21: 24,628,148 km (0.104 R)
• M22: 25,185,699 km (0.038 R)
• M23: 27,262,866 km (0.119 R)
• M24: 28,464,735 km (0.115 R)
• M25: 36,860,915 km (0.119 R)
• M26: 37,590,355 km (0.108 R)
• M27: 41,539,589 km (0.113 R)
• M28: 42,488,638 km (0.037 R)
• M29: 44,430,119 km (0.056 R)
• M30: 44,924,540 km (0.087 R)
• M31: 49,364,605 km (0.119 R)
• M32: 52,604,296 km (0.112 R)
• M33: 61,726,026 km (0.089 R)
• M34: 78,613,681 km (0.042 R)

Kuiper Belt

Range: 30.2 - 53.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 10,923 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit