🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.56 AU - 0.6 AU

Year: 285 Days

Day: 38.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 31,553,616 km

• M1: 34,856 km (0.118 R)
• M2: 662,270 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.4

Radius: 12.3

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.61 AU - 0.99 AU

Year: 462 Days

Day: 10.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,553,616 km

• M1: 153,039 km (0.117 R)
• M2: 586,872 km (0.105 R)
• M3: 1,157,140 km (0.119 R)
• M4: 2,589,838 km (0.117 R)
• M5: 3,339,623 km (0.06 R)
• M6: 4,286,129 km (0.096 R)
• M7: 4,853,703 km (0.101 R)
• M8: 5,539,160 km (0.091 R)
• M9: 6,103,743 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.8

Radius: 13.1

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.23 AU - 1.49 AU

Year: 1024 Days

Day: 12.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,553,616 km

• M1: 162,912 km (0.118 R)
• M2: 573,259 km (0.087 R)
• M3: 987,047 km (0.063 R)
• M4: 1,547,590 km (0.053 R)
• M5: 1,976,637 km (0.077 R)
• M6: 2,406,431 km (0.086 R)
• M7: 2,925,237 km (0.112 R)
• M8: 3,387,644 km (0.103 R)
• M9: 4,637,684 km (0.107 R)
• M10: 5,290,230 km (0.102 R)
• M11: 5,710,600 km (0.038 R)
• M12: 6,596,369 km (0.118 R)
• M13: 7,037,084 km (0.106 R)
• M14: 8,029,516 km (0.076 R)
• M15: 8,888,806 km (0.086 R)
• M16: 9,427,508 km (0.07 R)
• M17: 10,261,217 km (0.027 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.5

Radius: 11.4

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.79 AU - 2.71 AU

Year: 2179 Days

Day: 6.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,553,616 km

• M1: 141,819 km (0.112 R)
• M2: 504,145 km (0.036 R)
• M3: 1,388,717 km (0.099 R)
• M4: 2,438,445 km (0.103 R)
• M5: 2,956,652 km (0.082 R)
• M6: 3,888,497 km (0.086 R)
• M7: 5,373,705 km (0.078 R)
• M8: 6,233,145 km (0.041 R)
• M9: 7,387,741 km (0.079 R)
• M10: 8,825,676 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.3

Radius: 14.4

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.12 AU - 2.9 AU

Year: 2568 Days

Day: 11 Hours

Environment

Temp: -201 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,553,616 km

• M1: 182,809 km (0.058 R)
• M2: 756,816 km (0.064 R)
• M3: 1,625,530 km (0.112 R)
• M4: 2,073,576 km (0.12 R)
• M5: 2,620,207 km (0.117 R)
• M6: 4,128,004 km (0.108 R)
• M7: 4,626,314 km (0.032 R)
• M8: 5,118,342 km (0.113 R)
• M9: 6,422,835 km (0.096 R)
• M10: 7,095,277 km (0.116 R)
• M11: 7,970,126 km (0.094 R)
• M12: 9,504,252 km (0.052 R)
• M13: 10,266,902 km (0.11 R)
• M14: 10,720,782 km (0.116 R)
• M15: 13,641,979 km (0.028 R)
• M16: 15,679,652 km (0.081 R)
• M17: 16,953,627 km (0.102 R)
• M18: 19,021,070 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.5

Radius: 14.2

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.88 AU - 3.7 AU

Year: 3853 Days

Day: 13.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,553,616 km

• M1: 176,675 km (0.108 R)
• M2: 839,543 km (0.115 R)
• M3: 1,347,877 km (0.101 R)
• M4: 2,330,286 km (0.12 R)
• M5: 2,818,723 km (0.057 R)
• M6: 3,827,162 km (0.058 R)
• M7: 4,535,957 km (0.092 R)
• M8: 5,135,844 km (0.054 R)
• M9: 5,762,360 km (0.119 R)
• M10: 6,217,288 km (0.065 R)
• M11: 7,291,101 km (0.097 R)
• M12: 7,760,390 km (0.101 R)
• M13: 8,417,723 km (0.106 R)
• M14: 10,654,360 km (0.073 R)
• M15: 12,060,730 km (0.093 R)
• M16: 14,204,168 km (0.03 R)
• M17: 14,691,259 km (0.032 R)
• M18: 16,484,489 km (0.109 R)
• M19: 17,628,164 km (0.101 R)
• M20: 18,592,173 km (0.076 R)
• M21: 20,563,723 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.4

Radius: 13

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.47 AU - 6.33 AU

Year: 8102 Days

Day: 11 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,553,616 km

• M1: 161,715 km (0.06 R)
• M2: 1,096,403 km (0.1 R)
• M3: 1,523,056 km (0.083 R)
• M4: 2,101,700 km (0.051 R)
• M5: 3,192,568 km (0.112 R)
• M6: 5,244,752 km (0.116 R)
• M7: 7,294,392 km (0.069 R)
• M8: 8,567,769 km (0.09 R)
• M9: 9,023,594 km (0.06 R)
• M10: 10,371,321 km (0.056 R)
• M11: 11,134,719 km (0.11 R)
• M12: 11,935,367 km (0.101 R)
• M13: 13,698,677 km (0.055 R)
• M14: 15,219,639 km (0.041 R)
• M15: 16,796,101 km (0.103 R)
• M16: 17,289,475 km (0.073 R)
• M17: 19,843,110 km (0.059 R)
• M18: 21,019,997 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.2

Radius: 4.2

Gravity: 40.26 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 6.39 AU - 7.99 AU

Year: 12448 Days

Day: 16.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 31,553,616 km

• M1: 52,509 km (0.1 R)
• M2: 269,276 km (0.097 R)
• M3: 487,539 km (0.105 R)
• M4: 708,346 km (0.104 R)
• M5: 907,760 km (0.043 R)
• M6: 1,257,221 km (0.057 R)
• M7: 1,406,070 km (0.115 R)
• M8: 1,755,681 km (0.097 R)
• M9: 1,995,486 km (0.118 R)
• M10: 3,588,255 km (0.076 R)
• M11: 4,605,520 km (0.081 R)
• M12: 8,261,393 km (0.117 R)
• M13: 9,282,398 km (0.116 R)
• M14: 10,384,635 km (0.104 R)
• M15: 11,630,038 km (0.119 R)
• M16: 12,227,831 km (0.057 R)
• M17: 13,614,453 km (0.095 R)
• M18: 15,384,196 km (0.113 R)
• M19: 16,250,517 km (0.056 R)
• M20: 20,467,681 km (0.07 R)
• M21: 21,781,600 km (0.116 R)
• M22: 24,190,424 km (0.101 R)
• M23: 26,059,051 km (0.062 R)
• M24: 28,661,456 km (0.116 R)
• M25: 29,529,423 km (0.089 R)
• M26: 30,526,642 km (0.109 R)
• M27: 32,588,101 km (0.098 R)
• M28: 33,652,939 km (0.091 R)
• M29: 42,457,521 km (0.05 R)
• M30: 43,018,513 km (0.109 R)
• M31: 48,750,057 km (0.097 R)
• M32: 53,327,452 km (0.105 R)
• M33: 54,638,827 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.7

Radius: 5.2

Gravity: 18.89 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.54 AU - 8.52 AU

Year: 13342 Days

Day: 16.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 31,553,616 km

• M1: 66,571 km (0.101 R)
• M2: 318,643 km (0.114 R)
• M3: 511,326 km (0.099 R)
• M4: 747,391 km (0.104 R)
• M5: 957,726 km (0.117 R)
• M6: 1,334,563 km (0.084 R)
• M7: 1,821,055 km (0.057 R)
• M8: 2,622,899 km (0.106 R)
• M9: 3,090,393 km (0.111 R)
• M10: 3,797,692 km (0.034 R)
• M11: 7,292,597 km (0.108 R)
• M12: 8,581,083 km (0.11 R)
• M13: 9,009,981 km (0.114 R)
• M14: 12,005,977 km (0.064 R)
• M15: 17,802,147 km (0.112 R)
• M16: 19,537,781 km (0.084 R)
• M17: 24,839,081 km (0.088 R)
• M18: 27,611,279 km (0.053 R)
• M19: 30,473,385 km (0.081 R)
• M20: 31,357,958 km (0.057 R)
• M21: 34,350,962 km (0.044 R)
• M22: 35,308,837 km (0.064 R)
• M23: 37,027,867 km (0.093 R)
• M24: 38,416,883 km (0.08 R)
• M25: 47,341,144 km (0.103 R)
• M26: 51,111,609 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.6

Radius: 7.5

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 8.22 AU - 11.54 AU

Year: 20052 Days

Day: 16 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,553,616 km

• M1: 95,144 km (0.073 R)
• M2: 590,762 km (0.1 R)
• M3: 1,213,688 km (0.112 R)
• M4: 2,773,245 km (0.104 R)
• M5: 5,413,648 km (0.108 R)
• M6: 6,327,242 km (0.117 R)
• M7: 9,555,414 km (0.115 R)
• M8: 9,811,825 km (0.091 R)
• M9: 11,305,709 km (0.106 R)
• M10: 12,687,395 km (0.069 R)
• M11: 15,195,703 km (0.098 R)
• M12: 16,020,436 km (0.068 R)
• M13: 19,210,012 km (0.033 R)
• M14: 23,335,024 km (0.104 R)
• M15: 23,879,111 km (0.075 R)
• M16: 28,895,128 km (0.095 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 14,737 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit