🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 278.8

Radius: 11.2

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.19 AU - 1.27 AU

Year: 867 Days

Day: 11.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 34,928,577 km

• M1: 139,276 km (0.082 R)
• M2: 496,067 km (0.106 R)
• M3: 1,132,007 km (0.071 R)
• M4: 1,526,048 km (0.084 R)
• M5: 2,003,863 km (0.09 R)
• M6: 2,706,525 km (0.104 R)
• M7: 3,631,638 km (0.102 R)
• M8: 4,372,746 km (0.081 R)
• M9: 4,996,718 km (0.071 R)
• M10: 5,520,311 km (0.063 R)
• M11: 6,287,898 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.4

Radius: 9.8

Gravity: 9.14 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.25 AU - 1.27 AU

Year: 899 Days

Day: 7 Hours

Environment

Temp: -180 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,928,577 km

• M1: 121,922 km (0.086 R)
• M2: 473,178 km (0.091 R)
• M3: 777,909 km (0.087 R)
• M4: 1,094,608 km (0.084 R)
• M5: 1,532,481 km (0.097 R)
• M6: 2,074,922 km (0.048 R)
• M7: 2,583,106 km (0.11 R)
• M8: 3,397,667 km (0.098 R)
• M9: 3,928,290 km (0.11 R)
• M10: 4,255,910 km (0.077 R)
• M11: 4,655,037 km (0.049 R)
• M12: 6,005,307 km (0.092 R)
• M13: 6,992,653 km (0.095 R)
• M14: 9,664,022 km (0.078 R)
• M15: 10,202,874 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.7

Radius: 13.8

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.04 AU - 2.06 AU

Year: 1866 Days

Day: 14.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 34,928,577 km

• M1: 171,589 km (0.062 R)
• M2: 907,760 km (0.113 R)
• M3: 1,384,528 km (0.099 R)
• M4: 1,885,831 km (0.104 R)
• M5: 3,104,605 km (0.114 R)
• M6: 3,844,067 km (0.103 R)
• M7: 5,057,605 km (0.063 R)
• M8: 6,784,413 km (0.086 R)
• M9: 7,618,720 km (0.028 R)
• M10: 8,816,551 km (0.076 R)
• M11: 9,523,849 km (0.114 R)
• M12: 10,005,255 km (0.059 R)
• M13: 10,775,086 km (0.084 R)
• M14: 11,948,232 km (0.102 R)
• M15: 12,892,494 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.7

Radius: 9.2

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.95 AU - 2.99 AU

Year: 2468 Days

Day: 11.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 34,928,577 km

• M1: 114,891 km (0.091 R)
• M2: 828,024 km (0.102 R)
• M3: 1,221,766 km (0.105 R)
• M4: 1,622,987 km (0.097 R)
• M5: 2,145,084 km (0.066 R)
• M6: 8,199,160 km (0.106 R)
• M7: 10,091,424 km (0.118 R)
• M8: 11,920,407 km (0.111 R)
• M9: 13,110,458 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.5

Radius: 14.8

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.26 AU - 3.86 AU

Year: 4271 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 34,928,577 km

• M1: 190,288 km (0.109 R)
• M2: 694,733 km (0.069 R)
• M3: 1,761,515 km (0.118 R)
• M4: 2,398,054 km (0.087 R)
• M5: 3,585,263 km (0.11 R)
• M6: 4,486,141 km (0.109 R)
• M7: 5,980,025 km (0.112 R)
• M8: 6,478,934 km (0.088 R)
• M9: 7,752,610 km (0.063 R)
• M10: 8,586,619 km (0.104 R)
• M11: 9,628,269 km (0.039 R)
• M12: 10,955,202 km (0.075 R)
• M13: 16,839,335 km (0.09 R)
• M14: 17,445,954 km (0.057 R)
• M15: 18,702,875 km (0.044 R)
• M16: 20,638,073 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.5

Radius: 12.4

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 5.39 AU - 6.33 AU

Year: 9019 Days

Day: 13.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,928,577 km

• M1: 154,834 km (0.116 R)
• M2: 549,772 km (0.07 R)
• M3: 1,192,295 km (0.103 R)
• M4: 1,659,340 km (0.107 R)
• M5: 2,454,751 km (0.095 R)
• M6: 2,871,980 km (0.04 R)
• M7: 3,708,382 km (0.067 R)
• M8: 6,892,273 km (0.053 R)
• M9: 8,352,797 km (0.03 R)
• M10: 9,231,834 km (0.057 R)
• M11: 10,010,641 km (0.074 R)
• M12: 13,570,771 km (0.106 R)
• M13: 16,968,138 km (0.098 R)
• M14: 20,503,884 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 869.5

Radius: 7

Gravity: 17.74 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.24 AU - 7.26 AU

Year: 12412 Days

Day: 24.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 34,928,577 km

• M1: 87,365 km (0.101 R)
• M2: 815,308 km (0.104 R)
• M3: 1,056,311 km (0.087 R)
• M4: 1,592,619 km (0.118 R)
• M5: 2,481,230 km (0.071 R)
• M6: 3,118,816 km (0.117 R)
• M7: 3,888,946 km (0.092 R)
• M8: 4,489,881 km (0.11 R)
• M9: 5,687,861 km (0.079 R)
• M10: 6,461,282 km (0.086 R)
• M11: 7,658,813 km (0.111 R)
• M12: 9,099,141 km (0.065 R)
• M13: 9,511,881 km (0.117 R)
• M14: 11,704,837 km (0.069 R)
• M15: 12,950,837 km (0.108 R)
• M16: 14,982,077 km (0.12 R)
• M17: 15,412,321 km (0.076 R)
• M18: 16,983,697 km (0.029 R)
• M19: 18,823,900 km (0.094 R)
• M20: 20,793,206 km (0.038 R)
• M21: 21,509,182 km (0.051 R)
• M22: 27,840,164 km (0.044 R)
• M23: 31,193,998 km (0.107 R)
• M24: 32,967,780 km (0.091 R)
• M25: 34,682,920 km (0.116 R)
• M26: 43,574,868 km (0.079 R)
• M27: 54,208,284 km (0.116 R)
• M28: 55,222,109 km (0.068 R)
• M29: 57,986,977 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.1

Radius: 4.6

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.26 AU - 9.76 AU

Year: 15784 Days

Day: 21 Hours

Environment

Temp: -217 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,928,577 km

• M1: 57,296 km (0.104 R)
• M2: 245,640 km (0.076 R)
• M3: 662,868 km (0.06 R)
• M4: 1,136,046 km (0.047 R)
• M5: 1,369,120 km (0.103 R)
• M6: 1,661,584 km (0.085 R)
• M7: 3,710,775 km (0.095 R)
• M8: 4,305,726 km (0.062 R)
• M9: 5,715,237 km (0.07 R)
• M10: 8,819,842 km (0.099 R)
• M11: 12,005,080 km (0.116 R)
• M12: 15,364,599 km (0.063 R)
• M13: 16,209,976 km (0.072 R)
• M14: 16,610,450 km (0.116 R)
• M15: 17,640,431 km (0.079 R)
• M16: 36,606,898 km (0.086 R)
• M17: 40,993,257 km (0.039 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958

Radius: 6.6

Gravity: 21.99 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 9.03 AU - 12.99 AU

Year: 23228 Days

Day: 21.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 34,928,577 km

• M1: 85,720 km (0.067 R)
• M2: 856,298 km (0.077 R)
• M3: 1,109,867 km (0.118 R)
• M4: 1,567,486 km (0.066 R)
• M5: 2,302,610 km (0.082 R)
• M6: 3,396,769 km (0.073 R)
• M7: 4,840,090 km (0.104 R)
• M8: 5,155,442 km (0.063 R)
• M9: 5,871,268 km (0.11 R)
• M10: 6,508,854 km (0.072 R)
• M11: 7,041,422 km (0.116 R)
• M12: 9,047,530 km (0.086 R)
• M13: 10,732,301 km (0.111 R)
• M14: 11,337,574 km (0.108 R)
• M15: 12,251,617 km (0.069 R)
• M16: 12,763,690 km (0.107 R)
• M17: 21,825,432 km (0.058 R)
• M18: 28,842,918 km (0.038 R)
• M19: 43,133,255 km (0.105 R)
• M20: 50,559,144 km (0.088 R)
• M21: 51,684,868 km (0.098 R)
• M22: 63,659,878 km (0.118 R)
• M23: 68,788,392 km (0.04 R)
• M24: 75,394,933 km (0.108 R)
• M25: 80,618,592 km (0.071 R)
• M26: 89,851,922 km (0.041 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.2

Radius: 3.2

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 10.43 AU - 11.73 AU

Year: 23450 Days

Day: 16.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,928,577 km

• M1: 39,943 km (0.089 R)
• M2: 196,572 km (0.096 R)
• M3: 298,448 km (0.096 R)
• M4: 917,334 km (0.12 R)
• M5: 1,750,295 km (0.093 R)
• M6: 1,850,376 km (0.075 R)
• M7: 2,109,330 km (0.062 R)
• M8: 3,093,534 km (0.086 R)
• M9: 6,036,424 km (0.059 R)
• M10: 9,185,608 km (0.066 R)
• M11: 10,024,703 km (0.056 R)
• M12: 13,335,154 km (0.066 R)
• M13: 17,372,352 km (0.102 R)
• M14: 21,541,645 km (0.111 R)
• M15: 29,203,150 km (0.06 R)
• M16: 30,427,309 km (0.054 R)
• M17: 31,100,500 km (0.077 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 15,772 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit