🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.43

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.42 AU - 0.64 AU

Year: 253 Days

Day: 27.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 43.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,096,271 km

• M1: 38,895 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.8

Radius: 14.4

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.69 AU - 0.79 AU

Year: 418 Days

Day: 9.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 82,096,271 km

• M1: 179,069 km (0.098 R)
• M2: 675,584 km (0.064 R)
• M3: 2,399,550 km (0.113 R)
• M4: 3,418,162 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.6

Radius: 9.9

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.68 AU - 1.98 AU

Year: 1624 Days

Day: 15 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,096,271 km

• M1: 123,119 km (0.075 R)
• M2: 481,256 km (0.096 R)
• M3: 793,916 km (0.098 R)
• M4: 1,124,378 km (0.11 R)
• M5: 1,575,714 km (0.085 R)
• M6: 2,405,235 km (0.118 R)
• M7: 3,193,316 km (0.118 R)
• M8: 3,797,243 km (0.057 R)
• M9: 4,109,005 km (0.073 R)
• M10: 4,475,669 km (0.1 R)
• M11: 5,664,374 km (0.113 R)
• M12: 6,189,911 km (0.075 R)
• M13: 6,549,993 km (0.04 R)
• M14: 7,579,227 km (0.063 R)
• M15: 8,275,305 km (0.11 R)
• M16: 8,772,419 km (0.105 R)
• M17: 9,539,707 km (0.101 R)
• M18: 10,384,486 km (0.028 R)
• M19: 11,853,238 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.3

Radius: 11.3

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.85 AU - 2.81 AU

Year: 2333 Days

Day: 9.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,096,271 km

• M1: 140,772 km (0.116 R)
• M2: 637,437 km (0.086 R)
• M3: 1,151,305 km (0.114 R)
• M4: 1,733,241 km (0.101 R)
• M5: 2,433,060 km (0.112 R)
• M6: 3,043,868 km (0.111 R)
• M7: 3,948,636 km (0.064 R)
• M8: 4,339,984 km (0.05 R)
• M9: 4,870,458 km (0.054 R)
• M10: 5,341,841 km (0.095 R)
• M11: 6,491,351 km (0.076 R)
• M12: 8,010,816 km (0.083 R)
• M13: 9,724,610 km (0.112 R)
• M14: 10,896,260 km (0.055 R)
• M15: 11,431,222 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.2

Radius: 9.7

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.04 AU - 5 AU

Year: 5287 Days

Day: 13.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,096,271 km

• M1: 120,576 km (0.12 R)
• M2: 426,055 km (0.111 R)
• M3: 744,249 km (0.095 R)
• M4: 1,668,615 km (0.114 R)
• M5: 3,071,244 km (0.081 R)
• M6: 3,536,344 km (0.095 R)
• M7: 4,024,781 km (0.113 R)
• M8: 5,136,742 km (0.075 R)
• M9: 5,588,228 km (0.045 R)
• M10: 6,570,787 km (0.105 R)
• M11: 7,956,064 km (0.108 R)
• M12: 10,035,923 km (0.101 R)
• M13: 12,206,588 km (0.047 R)
• M14: 13,427,905 km (0.113 R)
• M15: 15,352,332 km (0.098 R)
• M16: 16,834,847 km (0.089 R)
• M17: 18,023,851 km (0.097 R)
• M18: 18,737,283 km (0.039 R)
• M19: 19,067,745 km (0.118 R)
• M20: 20,289,810 km (0.044 R)
• M21: 27,024,556 km (0.053 R)
• M22: 27,446,721 km (0.07 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.6

Radius: 7

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.66 AU - 8.5 AU

Year: 12358 Days

Day: 20.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,096,271 km

• M1: 105,167 km (0.107 R)
• M2: 1,107,922 km (0.057 R)
• M3: 1,398,142 km (0.034 R)
• M4: 3,367,897 km (0.112 R)
• M5: 3,887,899 km (0.095 R)
• M6: 4,118,130 km (0.062 R)
• M7: 7,437,258 km (0.085 R)
• M8: 11,333,535 km (0.106 R)
• M9: 14,454,296 km (0.064 R)
• M10: 15,674,416 km (0.112 R)
• M11: 16,558,390 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 567.9

Radius: 7.4

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6 AU - 8.38 AU

Year: 12647 Days

Day: 24.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 82,096,271 km

• M1: 92,900 km (0.071 R)
• M2: 409,001 km (0.096 R)
• M3: 903,571 km (0.117 R)
• M4: 1,246,001 km (0.038 R)
• M5: 1,483,263 km (0.105 R)
• M6: 2,443,980 km (0.073 R)
• M7: 3,481,741 km (0.111 R)
• M8: 3,903,906 km (0.095 R)
• M9: 4,449,041 km (0.034 R)
• M10: 5,242,358 km (0.107 R)
• M11: 6,468,014 km (0.067 R)
• M12: 7,356,625 km (0.111 R)
• M13: 8,187,342 km (0.035 R)
• M14: 10,086,038 km (0.083 R)
• M15: 11,447,079 km (0.071 R)
• M16: 12,024,378 km (0.1 R)
• M17: 12,803,633 km (0.079 R)
• M18: 15,068,694 km (0.088 R)
• M19: 17,663,769 km (0.096 R)
• M20: 18,434,347 km (0.098 R)
• M21: 18,907,376 km (0.112 R)
• M22: 19,227,066 km (0.06 R)
• M23: 20,374,931 km (0.083 R)
• M24: 21,222,253 km (0.101 R)
• M25: 24,752,314 km (0.112 R)
• M26: 27,108,780 km (0.114 R)
• M27: 30,587,379 km (0.083 R)
• M28: 32,149,031 km (0.109 R)
• M29: 35,309,735 km (0.107 R)
• M30: 41,698,611 km (0.108 R)
• M31: 42,650,353 km (0.113 R)
• M32: 45,306,463 km (0.072 R)
• M33: 48,966,824 km (0.034 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.1

Radius: 5

Gravity: 33.88 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 8.28 AU - 11.34 AU

Year: 20156 Days

Day: 15 Hours

Environment

Temp: -237 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,096,271 km

• M1: 69,713 km (0.075 R)
• M2: 230,231 km (0.086 R)
• M3: 398,230 km (0.085 R)
• M4: 935,735 km (0.088 R)
• M5: 1,113,307 km (0.059 R)
• M6: 1,537,567 km (0.091 R)
• M7: 1,768,247 km (0.116 R)
• M8: 2,189,664 km (0.117 R)
• M9: 5,195,085 km (0.079 R)
• M10: 7,291,101 km (0.085 R)
• M11: 8,524,984 km (0.1 R)
• M12: 8,909,600 km (0.119 R)
• M13: 9,305,736 km (0.103 R)
• M14: 10,816,524 km (0.117 R)
• M15: 11,202,188 km (0.117 R)
• M16: 12,694,726 km (0.081 R)
• M17: 13,341,737 km (0.103 R)
• M18: 16,068,008 km (0.09 R)
• M19: 17,429,498 km (0.105 R)
• M20: 17,693,090 km (0.106 R)
• M21: 18,138,293 km (0.084 R)
• M22: 26,545,095 km (0.076 R)
• M23: 26,894,107 km (0.039 R)
• M24: 32,106,097 km (0.108 R)
• M25: 32,768,217 km (0.053 R)
• M26: 34,394,196 km (0.102 R)
• M27: 42,221,306 km (0.102 R)
• M28: 48,857,917 km (0.119 R)
• M29: 49,733,513 km (0.084 R)
• M30: 51,877,250 km (0.073 R)
• M31: 52,240,474 km (0.119 R)
• M32: 63,941,122 km (0.064 R)
• M33: 64,149,661 km (0.051 R)
• M34: 80,871,861 km (0.09 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: 182 - 14,693 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit