🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.8

Radius: 11.7

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.67 AU - 0.85 AU

Year: 449 Days

Day: 9 Hours

Environment

Temp: -158 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,628,548 km

• M1: 146,008 km (0.037 R)
• M2: 539,450 km (0.037 R)
• M3: 942,616 km (0.079 R)
• M4: 1,343,090 km (0.096 R)
• M5: 2,152,564 km (0.105 R)
• M6: 2,544,361 km (0.11 R)
• M7: 3,171,924 km (0.068 R)
• M8: 4,018,648 km (0.097 R)
• M9: 4,826,925 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.1

Radius: 13.7

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.89 AU - 0.89 AU

Year: 569 Days

Day: 10.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,628,548 km

• M1: 177,273 km (0.103 R)
• M2: 628,909 km (0.078 R)
• M3: 1,180,178 km (0.037 R)
• M4: 1,741,768 km (0.12 R)
• M5: 2,222,576 km (0.115 R)
• M6: 3,909,292 km (0.068 R)
• M7: 4,352,251 km (0.105 R)
• M8: 6,594,424 km (0.081 R)
• M9: 7,356,924 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.1

Radius: 8.9

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.33 AU - 1.87 AU

Year: 1373 Days

Day: 9.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,628,548 km

• M1: 124,615 km (0.034 R)
• M2: 414,984 km (0.061 R)
• M3: 1,380,489 km (0.118 R)
• M4: 1,766,452 km (0.034 R)
• M5: 2,074,174 km (0.107 R)
• M6: 3,056,284 km (0.103 R)
• M7: 3,519,888 km (0.097 R)
• M8: 3,906,449 km (0.052 R)
• M9: 4,784,888 km (0.108 R)
• M10: 5,609,322 km (0.119 R)
• M11: 6,020,417 km (0.099 R)
• M12: 8,067,364 km (0.085 R)
• M13: 9,077,000 km (0.06 R)
• M14: 11,095,824 km (0.077 R)
• M15: 11,671,327 km (0.12 R)
• M16: 12,041,133 km (0.034 R)
• M17: 12,380,570 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.6

Radius: 12.7

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.14 AU - 2.94 AU

Year: 2746 Days

Day: 14.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,628,548 km

• M1: 157,975 km (0.111 R)
• M2: 553,811 km (0.099 R)
• M3: 1,215,632 km (0.114 R)
• M4: 1,613,413 km (0.12 R)
• M5: 2,699,643 km (0.084 R)
• M6: 3,139,012 km (0.102 R)
• M7: 3,535,596 km (0.101 R)
• M8: 4,064,125 km (0.117 R)
• M9: 5,280,805 km (0.099 R)
• M10: 6,156,551 km (0.086 R)
• M11: 6,783,067 km (0.111 R)
• M12: 7,185,186 km (0.065 R)
• M13: 7,818,134 km (0.104 R)
• M14: 8,887,759 km (0.108 R)
• M15: 9,869,869 km (0.082 R)
• M16: 10,768,204 km (0.041 R)
• M17: 12,300,835 km (0.112 R)
• M18: 13,974,535 km (0.119 R)
• M19: 16,659,219 km (0.103 R)
• M20: 17,607,969 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387

Radius: 14.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.36 AU - 3.48 AU

Year: 3384 Days

Day: 10.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,628,548 km

• M1: 182,809 km (0.086 R)
• M2: 899,382 km (0.084 R)
• M3: 1,375,403 km (0.101 R)
• M4: 1,873,863 km (0.114 R)
• M5: 2,397,904 km (0.116 R)
• M6: 3,200,946 km (0.106 R)
• M7: 3,694,170 km (0.078 R)
• M8: 4,403,713 km (0.064 R)
• M9: 5,063,290 km (0.103 R)
• M10: 6,664,735 km (0.103 R)
• M11: 7,386,544 km (0.051 R)
• M12: 8,918,576 km (0.101 R)
• M13: 9,868,822 km (0.118 R)
• M14: 11,239,737 km (0.107 R)
• M15: 14,357,805 km (0.094 R)
• M16: 15,762,978 km (0.09 R)
• M17: 16,370,645 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.1

Radius: 11.6

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.36 AU - 3.62 AU

Year: 3507 Days

Day: 13.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,628,548 km

• M1: 145,260 km (0.102 R)
• M2: 642,672 km (0.06 R)
• M3: 1,025,643 km (0.106 R)
• M4: 1,981,723 km (0.062 R)
• M5: 2,347,340 km (0.111 R)
• M6: 3,021,877 km (0.057 R)
• M7: 4,374,541 km (0.056 R)
• M8: 5,470,345 km (0.057 R)
• M9: 7,312,194 km (0.067 R)
• M10: 8,230,127 km (0.114 R)
• M11: 8,684,007 km (0.118 R)
• M12: 11,053,637 km (0.094 R)
• M13: 13,114,797 km (0.082 R)
• M14: 14,098,253 km (0.117 R)
• M15: 15,034,586 km (0.115 R)
• M16: 15,714,209 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 178.2

Radius: 7.7

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 7.68 AU - 10.78 AU

Year: 19019 Days

Day: 21 Hours

Environment

Temp: -237 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 42,628,548 km

• M1: 96,341 km (0.088 R)
• M2: 873,053 km (0.062 R)
• M3: 1,146,967 km (0.063 R)
• M4: 1,452,147 km (0.118 R)
• M5: 2,667,928 km (0.045 R)
• M6: 4,061,732 km (0.111 R)
• M7: 5,990,497 km (0.095 R)
• M8: 7,074,483 km (0.083 R)
• M9: 8,595,295 km (0.066 R)
• M10: 9,432,295 km (0.105 R)
• M11: 14,194,295 km (0.062 R)
• M12: 14,512,340 km (0.03 R)
• M13: 15,428,028 km (0.119 R)
• M14: 19,556,780 km (0.065 R)
• M15: 20,030,108 km (0.114 R)
• M16: 20,835,991 km (0.074 R)
• M17: 21,663,268 km (0.115 R)
• M18: 22,000,312 km (0.068 R)
• M19: 25,285,331 km (0.059 R)
• M20: 25,565,229 km (0.114 R)
• M21: 28,478,797 km (0.12 R)
• M22: 29,807,525 km (0.11 R)
• M23: 32,919,460 km (0.068 R)
• M24: 33,364,963 km (0.118 R)
• M25: 34,382,228 km (0.026 R)
• M26: 35,536,525 km (0.096 R)
• M27: 41,568,461 km (0.118 R)
• M28: 44,079,910 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.2

Radius: 7.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.93 AU - 9.53 AU

Year: 19019 Days

Day: 20.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,628,548 km

• M1: 97,089 km (0.092 R)
• M2: 388,655 km (0.114 R)
• M3: 753,674 km (0.112 R)
• M4: 1,145,022 km (0.111 R)
• M5: 1,920,537 km (0.073 R)
• M6: 2,199,388 km (0.104 R)
• M7: 3,293,248 km (0.117 R)
• M8: 5,224,406 km (0.11 R)
• M9: 5,805,445 km (0.075 R)
• M10: 6,500,925 km (0.077 R)
• M11: 8,481,601 km (0.073 R)
• M12: 9,656,243 km (0.074 R)
• M13: 11,038,677 km (0.041 R)
• M14: 12,269,120 km (0.048 R)
• M15: 13,235,672 km (0.088 R)
• M16: 17,331,811 km (0.119 R)
• M17: 18,328,582 km (0.11 R)
• M18: 18,989,355 km (0.113 R)
• M19: 22,366,826 km (0.112 R)
• M20: 26,494,232 km (0.068 R)
• M21: 29,778,204 km (0.037 R)
• M22: 30,588,576 km (0.12 R)
• M23: 31,205,966 km (0.116 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: 368 - 14,033 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit