🌌 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 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.1

Radius: 9.2

Gravity: 9.02 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.55 AU - 0.67 AU

Year: 323 Days

Day: 7.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,339,999 km

• M1: 115,938 km (0.092 R)
• M2: 548,575 km (0.109 R)
• M3: 843,732 km (0.102 R)
• M4: 1,194,539 km (0.043 R)
• M5: 1,649,915 km (0.052 R)
• M6: 2,023,162 km (0.084 R)
• M7: 2,346,143 km (0.118 R)
• M8: 2,742,279 km (0.104 R)
• M9: 3,182,844 km (0.084 R)
• M10: 3,552,501 km (0.099 R)
• M11: 4,141,467 km (0.118 R)
• M12: 4,486,889 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.4

Radius: 9.7

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.62 AU - 0.8 AU

Year: 406 Days

Day: 10.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 83,339,999 km

• M1: 120,725 km (0.108 R)
• M2: 556,654 km (0.066 R)
• M3: 861,684 km (0.07 R)
• M4: 1,325,587 km (0.115 R)
• M5: 1,653,655 km (0.08 R)
• M6: 2,639,206 km (0.106 R)
• M7: 3,460,348 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.6

Radius: 14.6

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.13 AU - 1.15 AU

Year: 826 Days

Day: 13.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,339,999 km

• M1: 181,612 km (0.05 R)
• M2: 635,791 km (0.101 R)
• M3: 1,115,103 km (0.099 R)
• M4: 1,748,650 km (0.109 R)
• M5: 2,250,850 km (0.105 R)
• M6: 2,861,059 km (0.094 R)
• M7: 3,393,179 km (0.07 R)
• M8: 4,102,572 km (0.074 R)
• M9: 4,659,974 km (0.086 R)
• M10: 5,151,851 km (0.074 R)
• M11: 5,855,859 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.3

Radius: 8.4

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.38 AU - 1.5 AU

Year: 1172 Days

Day: 9.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,339,999 km

• M1: 104,419 km (0.114 R)
• M2: 528,380 km (0.106 R)
• M3: 865,124 km (0.066 R)
• M4: 1,887,177 km (0.08 R)
• M5: 2,151,517 km (0.106 R)
• M6: 3,350,693 km (0.084 R)
• M7: 4,207,739 km (0.077 R)
• M8: 4,745,095 km (0.069 R)
• M9: 5,766,400 km (0.116 R)
• M10: 7,540,929 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.7

Radius: 8.8

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.15 AU - 2.29 AU

Year: 2243 Days

Day: 9.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,339,999 km

• M1: 109,506 km (0.079 R)
• M2: 460,163 km (0.112 R)
• M3: 1,012,329 km (0.06 R)
• M4: 2,559,021 km (0.028 R)
• M5: 3,304,617 km (0.092 R)
• M6: 3,945,195 km (0.09 R)
• M7: 4,608,961 km (0.088 R)
• M8: 6,297,322 km (0.069 R)
• M9: 6,950,317 km (0.097 R)
• M10: 7,700,999 km (0.118 R)
• M11: 8,853,501 km (0.08 R)
• M12: 9,486,450 km (0.117 R)
• M13: 11,815,539 km (0.056 R)
• M14: 12,397,176 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.7

Radius: 14

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.09 AU - 6.79 AU

Year: 8606 Days

Day: 8 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,339,999 km

• M1: 174,282 km (0.112 R)
• M2: 724,203 km (0.093 R)
• M3: 1,192,145 km (0.086 R)
• M4: 1,644,829 km (0.102 R)
• M5: 2,286,005 km (0.112 R)
• M6: 3,619,969 km (0.088 R)
• M7: 4,099,730 km (0.096 R)
• M8: 4,621,976 km (0.06 R)
• M9: 6,582,306 km (0.081 R)
• M10: 9,543,895 km (0.102 R)
• M11: 12,584,322 km (0.087 R)
• M12: 13,644,672 km (0.052 R)
• M13: 17,829,224 km (0.106 R)
• M14: 20,115,977 km (0.092 R)
• M15: 24,892,038 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 193

Radius: 3

Gravity: 21.44 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.48 AU - 5.84 AU

Year: 9133 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,339,999 km

• M1: 37,399 km (0.089 R)
• M2: 172,486 km (0.084 R)
• M3: 330,910 km (0.056 R)
• M4: 477,068 km (0.081 R)
• M5: 692,788 km (0.098 R)
• M6: 978,370 km (0.098 R)
• M7: 1,198,429 km (0.092 R)
• M8: 1,545,944 km (0.047 R)
• M9: 1,789,789 km (0.119 R)
• M10: 2,088,386 km (0.109 R)
• M11: 2,747,365 km (0.12 R)
• M12: 2,912,820 km (0.074 R)
• M13: 3,386,896 km (0.118 R)
• M14: 3,933,227 km (0.1 R)
• M15: 4,460,560 km (0.081 R)
• M16: 4,612,102 km (0.12 R)
• M17: 4,819,595 km (0.041 R)
• M18: 6,776,036 km (0.12 R)
• M19: 7,745,579 km (0.104 R)
• M20: 7,927,939 km (0.096 R)
• M21: 8,415,479 km (0.053 R)
• M22: 8,647,056 km (0.086 R)
• M23: 9,042,593 km (0.116 R)
• M24: 10,345,142 km (0.09 R)
• M25: 11,202,487 km (0.092 R)
• M26: 12,852,851 km (0.096 R)
• M27: 13,108,513 km (0.089 R)
• M28: 13,315,407 km (0.118 R)
• M29: 17,861,986 km (0.075 R)
• M30: 21,934,937 km (0.108 R)
• M31: 26,502,908 km (0.079 R)
• M32: 27,251,197 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 626.5

Radius: 3.7

Gravity: 45.76 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 10.54 AU - 11 AU

Year: 23973 Days

Day: 16 Hours

Environment

Temp: -245 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,339,999 km

• M1: 60,587 km (0.111 R)
• M2: 220,657 km (0.116 R)
• M3: 1,316,461 km (0.104 R)
• M4: 2,272,541 km (0.098 R)
• M5: 5,063,290 km (0.043 R)
• M6: 6,530,845 km (0.043 R)
• M7: 6,668,475 km (0.119 R)
• M8: 9,315,310 km (0.079 R)
• M9: 16,130,091 km (0.113 R)
• M10: 30,237,320 km (0.11 R)
• M11: 32,849,897 km (0.118 R)
• M12: 43,821,854 km (0.081 R)
• M13: 45,469,375 km (0.112 R)
• M14: 51,018,559 km (0.115 R)
• M15: 64,063,643 km (0.072 R)
• M16: 65,755,744 km (0.025 R)
• M17: 66,612,790 km (0.079 R)
• M18: 67,260,399 km (0.093 R)
• M19: 72,821,850 km (0.104 R)
• M20: 74,896,623 km (0.104 R)
• M21: 79,405,503 km (0.094 R)
• M22: 80,621,434 km (0.097 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 16,893 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit