🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.59 AU - 0.63 AU

Year: 213 Days

Day: 36.9 Hours

Environment

Temp: -9 °C

Axial Tilt: 8.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 92,039,399 km

• M1: 559,945 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.6 AU - 0.66 AU

Year: 223 Days

Day: 30.3 Hours

Environment

Temp: -13 °C

Axial Tilt: 0.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.65 AU - 0.71 AU

Year: 250 Days

Day: 37.3 Hours

Environment

Temp: -16 °C

Axial Tilt: 36.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.88 AU - 1.3 AU

Year: 508 Days

Day: 35.8 Hours

Environment

Temp: -79 °C

Axial Tilt: 8.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 92,039,399 km

• M1: 44,580 km (0.117 R)
• M2: 277,504 km (0.116 R)

Asteroid Belt

Center: 3.28 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.1

Radius: 14.4

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.25 AU - 5.67 AU

Year: 5693 Days

Day: 12.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 92,039,399 km

• M1: 183,407 km (0.052 R)
• M2: 725,250 km (0.094 R)
• M3: 1,364,781 km (0.026 R)
• M4: 2,044,554 km (0.108 R)
• M5: 2,665,535 km (0.109 R)
• M6: 3,181,797 km (0.1 R)
• M7: 4,653,691 km (0.084 R)
• M8: 6,375,562 km (0.091 R)
• M9: 7,236,647 km (0.055 R)
• M10: 8,057,341 km (0.116 R)
• M11: 8,571,060 km (0.059 R)
• M12: 9,929,409 km (0.101 R)
• M13: 10,567,145 km (0.108 R)
• M14: 11,525,469 km (0.09 R)
• M15: 12,025,874 km (0.114 R)
• M16: 13,505,097 km (0.117 R)
• M17: 14,984,620 km (0.088 R)
• M18: 16,008,767 km (0.107 R)
• M19: 17,143,467 km (0.079 R)
• M20: 18,129,616 km (0.074 R)
• M21: 18,670,712 km (0.081 R)
• M22: 20,504,483 km (0.077 R)
• M23: 21,994,777 km (0.038 R)
• M24: 25,023,685 km (0.078 R)
• M25: 26,292,424 km (0.111 R)
• M26: 28,592,791 km (0.099 R)
• M27: 31,604,345 km (0.116 R)
• M28: 34,099,937 km (0.035 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.8

Radius: 9.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.39 AU - 5.85 AU

Year: 5945 Days

Day: 8.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,039,399 km

• M1: 134,788 km (0.095 R)
• M2: 1,099,544 km (0.067 R)
• M3: 1,982,770 km (0.057 R)
• M4: 2,649,079 km (0.056 R)
• M5: 5,927,516 km (0.046 R)
• M6: 7,193,862 km (0.061 R)
• M7: 9,098,842 km (0.083 R)
• M8: 9,780,410 km (0.103 R)
• M9: 10,812,485 km (0.116 R)
• M10: 13,542,198 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.8

Radius: 12.7

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 8.05 AU - 9.81 AU

Year: 11908 Days

Day: 12.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 92,039,399 km

• M1: 157,975 km (0.117 R)
• M2: 584,329 km (0.099 R)
• M3: 1,214,585 km (0.095 R)
• M4: 1,618,649 km (0.11 R)
• M5: 2,027,799 km (0.044 R)
• M6: 2,448,020 km (0.082 R)
• M7: 2,993,902 km (0.109 R)
• M8: 3,645,999 km (0.119 R)
• M9: 4,132,192 km (0.111 R)
• M10: 5,714,489 km (0.027 R)
• M11: 6,411,466 km (0.119 R)
• M12: 10,192,402 km (0.064 R)
• M13: 10,616,362 km (0.062 R)
• M14: 12,491,273 km (0.091 R)
• M15: 13,100,734 km (0.081 R)
• M16: 19,756,493 km (0.116 R)
• M17: 27,042,059 km (0.108 R)
• M18: 28,582,917 km (0.037 R)
• M19: 38,054,856 km (0.078 R)
• M20: 38,820,348 km (0.118 R)
• M21: 40,382,300 km (0.116 R)
• M22: 45,604,911 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 652.1

Radius: 7.8

Gravity: 10.72 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 9.54 AU - 13.04 AU

Year: 16928 Days

Day: 24.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 92,039,399 km

• M1: 97,239 km (0.113 R)
• M2: 838,646 km (0.096 R)
• M3: 2,167,374 km (0.109 R)
• M4: 2,588,791 km (0.086 R)
• M5: 3,375,826 km (0.066 R)
• M6: 4,842,483 km (0.091 R)
• M7: 5,158,733 km (0.099 R)
• M8: 6,821,065 km (0.087 R)
• M9: 9,072,961 km (0.074 R)
• M10: 9,392,353 km (0.032 R)
• M11: 9,774,276 km (0.106 R)
• M12: 11,716,206 km (0.074 R)
• M13: 12,547,372 km (0.032 R)
• M14: 21,311,264 km (0.11 R)
• M15: 23,035,679 km (0.047 R)
• M16: 24,032,898 km (0.112 R)
• M17: 26,651,459 km (0.095 R)
• M18: 32,324,210 km (0.061 R)
• M19: 38,336,250 km (0.046 R)
• M20: 43,081,045 km (0.09 R)
• M21: 46,767,735 km (0.079 R)
• M22: 48,364,094 km (0.061 R)
• M23: 49,339,173 km (0.118 R)
• M24: 60,007,895 km (0.073 R)
• M25: 65,381,450 km (0.042 R)
• M26: 66,174,319 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.9

Radius: 3.3

Gravity: 69.41 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 12.36 AU - 17.18 AU

Year: 25329 Days

Day: 24.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 92,039,399 km

• M1: 75,397 km (0.076 R)
• M2: 181,013 km (0.062 R)
• M3: 327,320 km (0.063 R)
• M4: 446,849 km (0.101 R)
• M5: 905,217 km (0.107 R)
• M6: 1,753,137 km (0.041 R)
• M7: 3,438,208 km (0.079 R)
• M8: 3,656,920 km (0.111 R)
• M9: 4,297,648 km (0.063 R)
• M10: 5,841,049 km (0.1 R)
• M11: 5,973,144 km (0.066 R)
• M12: 6,568,992 km (0.058 R)
• M13: 7,203,586 km (0.11 R)
• M14: 9,231,385 km (0.06 R)
• M15: 10,930,967 km (0.066 R)
• M16: 11,679,405 km (0.095 R)
• M17: 12,244,735 km (0.061 R)
• M18: 12,534,058 km (0.085 R)
• M19: 12,828,017 km (0.097 R)
• M20: 18,839,608 km (0.113 R)
• M21: 26,131,158 km (0.084 R)
• M22: 28,334,884 km (0.117 R)
• M23: 33,810,166 km (0.083 R)
• M24: 38,388,908 km (0.087 R)
• M25: 41,228,425 km (0.1 R)
• M26: 41,552,305 km (0.114 R)
• M27: 45,399,812 km (0.093 R)
• M28: 48,211,953 km (0.112 R)
• M29: 48,751,852 km (0.106 R)
• M30: 52,644,538 km (0.084 R)
• M31: 57,744,479 km (0.097 R)
• M32: 60,205,364 km (0.105 R)
• M33: 61,672,769 km (0.086 R)
• M34: 62,949,288 km (0.096 R)
• M35: 70,056,234 km (0.067 R)
• M36: 72,147,313 km (0.069 R)
• M37: 74,758,993 km (0.115 R)
• M38: 81,435,246 km (0.078 R)
• M39: 87,160,357 km (0.115 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 262 - 11,339 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit