🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.59 AU - 0.63 AU

Year: 313 Days

Day: 39.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.59 AU - 0.65 AU

Year: 320 Days

Day: 17.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,153,681 km

• M1: 345,870 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.6

Radius: 9.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.65 AU - 0.71 AU

Year: 368 Days

Day: 14.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,153,681 km

• M1: 123,119 km (0.116 R)
• M2: 483,052 km (0.076 R)
• M3: 850,613 km (0.075 R)
• M4: 1,219,073 km (0.096 R)
• M5: 1,644,380 km (0.115 R)
• M6: 2,100,055 km (0.047 R)
• M7: 2,890,231 km (0.083 R)
• M8: 3,297,885 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.3

Radius: 13.4

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.79 AU - 1.15 AU

Year: 627 Days

Day: 8.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,153,681 km

• M1: 166,652 km (0.08 R)
• M2: 606,470 km (0.058 R)
• M3: 1,061,696 km (0.079 R)
• M4: 1,487,601 km (0.047 R)
• M5: 2,231,252 km (0.102 R)
• M6: 2,928,378 km (0.096 R)
• M7: 3,645,551 km (0.036 R)
• M8: 4,400,870 km (0.11 R)
• M9: 4,971,885 km (0.095 R)
• M10: 5,432,198 km (0.047 R)
• M11: 6,224,468 km (0.117 R)
• M12: 6,883,596 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.2

Radius: 12.6

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.93 AU - 1.07 AU

Year: 656 Days

Day: 13.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,153,681 km

• M1: 159,920 km (0.117 R)
• M2: 593,156 km (0.079 R)
• M3: 1,180,776 km (0.088 R)
• M4: 1,575,116 km (0.066 R)
• M5: 2,022,414 km (0.057 R)
• M6: 2,500,828 km (0.091 R)
• M7: 3,270,359 km (0.113 R)
• M8: 3,950,281 km (0.058 R)
• M9: 4,789,974 km (0.111 R)
• M10: 5,574,465 km (0.119 R)
• M11: 6,057,367 km (0.11 R)
• M12: 6,716,196 km (0.1 R)
• M13: 7,129,685 km (0.093 R)
• M14: 7,699,802 km (0.089 R)
• M15: 8,153,234 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.5

Radius: 12.2

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.7 AU - 2.82 AU

Year: 2229 Days

Day: 8.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 175.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,153,681 km

• M1: 151,692 km (0.109 R)
• M2: 734,974 km (0.105 R)
• M3: 1,643,033 km (0.116 R)
• M4: 2,027,500 km (0.069 R)
• M5: 2,586,846 km (0.119 R)
• M6: 3,064,512 km (0.067 R)
• M7: 3,582,420 km (0.112 R)
• M8: 3,979,303 km (0.084 R)
• M9: 4,511,722 km (0.105 R)
• M10: 6,732,054 km (0.12 R)
• M11: 7,460,446 km (0.053 R)
• M12: 8,112,244 km (0.104 R)
• M13: 9,212,985 km (0.101 R)
• M14: 9,745,254 km (0.099 R)
• M15: 11,998,796 km (0.087 R)
• M16: 13,651,703 km (0.073 R)
• M17: 14,485,562 km (0.111 R)
• M18: 14,866,887 km (0.096 R)
• M19: 17,085,872 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.2

Radius: 11.9

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.91 AU - 3.87 AU

Year: 4095 Days

Day: 9.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,153,681 km

• M1: 147,952 km (0.108 R)
• M2: 531,222 km (0.099 R)
• M3: 1,056,460 km (0.077 R)
• M4: 1,728,753 km (0.042 R)
• M5: 2,383,244 km (0.099 R)
• M6: 3,063,316 km (0.067 R)
• M7: 3,792,156 km (0.115 R)
• M8: 4,655,336 km (0.055 R)
• M9: 5,063,439 km (0.114 R)
• M10: 5,952,200 km (0.115 R)
• M11: 7,029,305 km (0.095 R)
• M12: 7,446,234 km (0.11 R)
• M13: 8,167,146 km (0.118 R)
• M14: 8,797,402 km (0.038 R)
• M15: 9,317,554 km (0.083 R)
• M16: 10,766,858 km (0.109 R)
• M17: 11,525,020 km (0.109 R)
• M18: 12,750,526 km (0.094 R)
• M19: 13,645,121 km (0.084 R)
• M20: 15,310,594 km (0.062 R)
• M21: 16,528,470 km (0.07 R)
• M22: 16,948,392 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.1

Radius: 9.8

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.8 AU - 6 AU

Year: 7115 Days

Day: 13.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 50,153,681 km

• M1: 125,064 km (0.047 R)
• M2: 921,523 km (0.048 R)
• M3: 1,486,105 km (0.062 R)
• M4: 2,200,734 km (0.067 R)
• M5: 2,703,533 km (0.087 R)
• M6: 3,108,345 km (0.098 R)
• M7: 3,791,558 km (0.098 R)
• M8: 4,117,382 km (0.09 R)
• M9: 4,599,686 km (0.094 R)
• M10: 5,119,090 km (0.031 R)
• M11: 5,613,361 km (0.102 R)
• M12: 7,637,420 km (0.044 R)
• M13: 8,325,122 km (0.119 R)
• M14: 9,731,042 km (0.104 R)
• M15: 10,058,512 km (0.067 R)
• M16: 11,703,341 km (0.066 R)
• M17: 13,233,428 km (0.03 R)
• M18: 14,831,282 km (0.095 R)
• M19: 15,203,033 km (0.098 R)
• M20: 16,620,174 km (0.084 R)
• M21: 21,084,922 km (0.095 R)
• M22: 21,397,881 km (0.096 R)
• M23: 22,193,592 km (0.071 R)
• M24: 24,183,842 km (0.1 R)
• M25: 24,699,506 km (0.093 R)
• M26: 27,574,179 km (0.099 R)
• M27: 28,803,125 km (0.112 R)
• M28: 29,675,131 km (0.117 R)
• M29: 31,066,391 km (0.118 R)
• M30: 33,978,613 km (0.046 R)
• M31: 36,841,468 km (0.111 R)
• M32: 37,524,232 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.9

Radius: 4.2

Gravity: 32.87 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.97 AU - 7.63 AU

Year: 11632 Days

Day: 16.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 50,153,681 km

• M1: 52,210 km (0.113 R)
• M2: 189,690 km (0.117 R)
• M3: 452,982 km (0.112 R)
• M4: 669,750 km (0.1 R)
• M5: 1,224,309 km (0.099 R)
• M6: 1,772,136 km (0.064 R)
• M7: 2,218,836 km (0.086 R)
• M8: 3,163,546 km (0.065 R)
• M9: 3,633,134 km (0.025 R)
• M10: 3,980,351 km (0.095 R)
• M11: 4,865,521 km (0.093 R)
• M12: 5,627,722 km (0.1 R)
• M13: 5,946,665 km (0.12 R)
• M14: 6,776,784 km (0.111 R)
• M15: 7,178,454 km (0.072 R)
• M16: 8,297,296 km (0.087 R)
• M17: 9,040,798 km (0.108 R)
• M18: 9,676,738 km (0.053 R)
• M19: 10,082,597 km (0.092 R)
• M20: 10,766,260 km (0.107 R)
• M21: 11,202,038 km (0.118 R)
• M22: 11,877,622 km (0.11 R)
• M23: 13,002,149 km (0.094 R)
• M24: 15,256,290 km (0.076 R)
• M25: 16,368,251 km (0.1 R)
• M26: 20,190,327 km (0.11 R)
• M27: 23,283,562 km (0.075 R)
• M28: 23,464,127 km (0.091 R)
• M29: 27,777,781 km (0.115 R)
• M30: 29,220,503 km (0.045 R)
• M31: 32,366,247 km (0.039 R)
• M32: 33,044,225 km (0.111 R)
• M33: 39,192,997 km (0.098 R)
• M34: 39,962,977 km (0.096 R)
• M35: 44,517,484 km (0.113 R)
• M36: 47,496,576 km (0.113 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 15,434 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit