🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.91 AU - 1.29 AU

Year: 411 Days

Day: 33.3 Hours

Environment

Temp: 37 °C

Axial Tilt: 35.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.92 AU - 1.52 AU

Year: 480 Days

Day: 16.4 Hours

Environment

Temp: 2 °C

Axial Tilt: 42 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 88,403,805 km

• M1: 16,605 km (0.084 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.41 AU - 3.43 AU

Year: 1779 Days

Day: 23.2 Hours

Environment

Temp: -83 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.7

Radius: 11.2

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 6.95 AU - 9.37 AU

Year: 8309 Days

Day: 6.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 88,403,805 km

• M1: 139,874 km (0.086 R)
• M2: 557,551 km (0.066 R)
• M3: 950,096 km (0.116 R)
• M4: 1,474,437 km (0.112 R)
• M5: 2,719,988 km (0.096 R)
• M6: 3,135,721 km (0.088 R)
• M7: 4,072,652 km (0.092 R)
• M8: 5,679,633 km (0.074 R)
• M9: 6,396,057 km (0.091 R)
• M10: 7,101,860 km (0.09 R)
• M11: 8,161,013 km (0.061 R)
• M12: 8,869,658 km (0.083 R)
• M13: 11,823,169 km (0.084 R)
• M14: 12,321,629 km (0.047 R)
• M15: 13,575,558 km (0.12 R)
• M16: 14,011,935 km (0.044 R)
• M17: 14,627,081 km (0.112 R)
• M18: 17,143,318 km (0.12 R)
• M19: 17,782,400 km (0.096 R)
• M20: 18,972,900 km (0.092 R)
• M21: 20,075,137 km (0.034 R)
• M22: 23,016,979 km (0.084 R)
• M23: 27,428,470 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95

Radius: 11.2

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.3 AU - 9.76 AU

Year: 8880 Days

Day: 7.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,403,805 km

• M1: 143,764 km (0.115 R)
• M2: 544,387 km (0.113 R)
• M3: 995,873 km (0.088 R)
• M4: 2,415,258 km (0.082 R)
• M5: 3,511,960 km (0.113 R)
• M6: 3,888,647 km (0.11 R)
• M7: 5,259,861 km (0.071 R)
• M8: 5,917,942 km (0.088 R)
• M9: 7,853,739 km (0.115 R)
• M10: 9,408,958 km (0.073 R)
• M11: 10,459,584 km (0.069 R)
• M12: 11,034,339 km (0.101 R)
• M13: 11,848,002 km (0.096 R)
• M14: 12,609,455 km (0.042 R)
• M15: 16,200,552 km (0.12 R)
• M16: 17,592,410 km (0.077 R)
• M17: 18,762,116 km (0.111 R)
• M18: 20,422,503 km (0.066 R)
• M19: 21,451,437 km (0.027 R)
• M20: 21,846,076 km (0.096 R)
• M21: 22,245,503 km (0.059 R)
• M22: 22,785,850 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671.1

Radius: 7.7

Gravity: 11.32 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 13.77 AU - 21.31 AU

Year: 26184 Days

Day: 22 Hours

Environment

Temp: -192 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 88,403,805 km

• M1: 95,743 km (0.12 R)
• M2: 725,250 km (0.032 R)
• M3: 993,629 km (0.044 R)
• M4: 1,934,001 km (0.043 R)
• M5: 2,659,102 km (0.083 R)
• M6: 3,111,935 km (0.093 R)
• M7: 3,903,158 km (0.084 R)
• M8: 5,454,937 km (0.054 R)
• M9: 6,982,181 km (0.116 R)
• M10: 7,739,296 km (0.104 R)
• M11: 10,024,703 km (0.061 R)
• M12: 10,594,970 km (0.048 R)
• M13: 12,221,548 km (0.102 R)
• M14: 13,094,302 km (0.056 R)
• M15: 13,852,763 km (0.042 R)
• M16: 15,792,150 km (0.1 R)
• M17: 19,904,296 km (0.109 R)
• M18: 22,471,545 km (0.064 R)
• M19: 23,228,061 km (0.118 R)
• M20: 26,187,556 km (0.088 R)
• M21: 26,904,429 km (0.032 R)
• M22: 27,389,725 km (0.092 R)
• M23: 28,880,467 km (0.077 R)
• M24: 30,951,051 km (0.066 R)
• M25: 33,816,449 km (0.078 R)
• M26: 46,874,249 km (0.115 R)
• M27: 48,643,692 km (0.076 R)
• M28: 54,992,776 km (0.083 R)
• M29: 58,163,054 km (0.105 R)
• M30: 61,243,723 km (0.104 R)
• M31: 71,367,011 km (0.108 R)
• M32: 78,290,550 km (0.076 R)
• M33: 81,787,549 km (0.105 R)
• M34: 82,550,199 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 20.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392.6

Radius: 3.2

Gravity: 38.34 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 20.3 AU - 20.71 AU

Year: 33085 Days

Day: 19.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 88,403,805 km

• M1: 40,990 km (0.111 R)
• M2: 163,959 km (0.108 R)
• M3: 617,690 km (0.078 R)
• M4: 1,453,942 km (0.103 R)
• M5: 1,557,314 km (0.11 R)
• M6: 1,740,721 km (0.036 R)
• M7: 2,172,759 km (0.063 R)
• M8: 2,672,267 km (0.115 R)
• M9: 2,801,669 km (0.094 R)
• M10: 3,605,608 km (0.082 R)
• M11: 4,515,761 km (0.076 R)
• M12: 5,568,781 km (0.087 R)
• M13: 6,219,531 km (0.09 R)
• M14: 6,680,443 km (0.081 R)
• M15: 7,670,032 km (0.071 R)
• M16: 9,934,795 km (0.104 R)
• M17: 14,344,042 km (0.096 R)
• M18: 16,926,401 km (0.104 R)
• M19: 20,096,679 km (0.114 R)
• M20: 21,613,003 km (0.118 R)
• M21: 28,070,096 km (0.095 R)
• M22: 29,960,564 km (0.078 R)
• M23: 31,267,002 km (0.052 R)
• M24: 36,430,821 km (0.087 R)
• M25: 38,372,003 km (0.09 R)
• M26: 42,134,539 km (0.072 R)
• M27: 42,948,202 km (0.045 R)
• M28: 43,112,311 km (0.079 R)
• M29: 51,483,808 km (0.117 R)
• M30: 52,040,312 km (0.097 R)
• M31: 60,462,971 km (0.101 R)
• M32: 67,068,316 km (0.059 R)
• M33: 75,085,415 km (0.086 R)
• M34: 81,437,790 km (0.041 R)
• M35: 88,403,815 km (0.12 R)

Kuiper Belt

Range: 30.8 - 55.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 15,920 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit