🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.54 AU - 0.54 AU

Year: 260 Days

Day: 35.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.9

Radius: 8.5

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.84 AU - 1.02 AU

Year: 588 Days

Day: 13.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,559,071 km

• M1: 105,766 km (0.027 R)
• M2: 401,221 km (0.067 R)
• M3: 767,587 km (0.057 R)
• M4: 1,159,533 km (0.047 R)
• M5: 1,689,558 km (0.085 R)
• M6: 2,019,272 km (0.086 R)
• M7: 2,296,926 km (0.116 R)
• M8: 2,767,261 km (0.103 R)
• M9: 3,336,631 km (0.118 R)
• M10: 3,714,366 km (0.084 R)
• M11: 4,219,558 km (0.099 R)
• M12: 5,135,097 km (0.09 R)
• M13: 5,400,334 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.5

Radius: 9.7

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.04 AU - 1.3 AU

Year: 830 Days

Day: 8.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,559,071 km

• M1: 120,725 km (0.096 R)
• M2: 484,847 km (0.101 R)
• M3: 1,115,851 km (0.081 R)
• M4: 1,929,813 km (0.113 R)
• M5: 2,516,535 km (0.095 R)
• M6: 3,681,454 km (0.059 R)
• M7: 4,070,708 km (0.108 R)
• M8: 4,727,891 km (0.113 R)
• M9: 5,296,961 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.8

Radius: 11.9

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.16 AU - 3.46 AU

Year: 3090 Days

Day: 14.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,559,071 km

• M1: 153,787 km (0.069 R)
• M2: 541,544 km (0.102 R)
• M3: 943,514 km (0.098 R)
• M4: 1,343,538 km (0.111 R)
• M5: 2,460,885 km (0.09 R)
• M6: 3,499,842 km (0.074 R)
• M7: 4,671,194 km (0.105 R)
• M8: 5,423,521 km (0.034 R)
• M9: 6,005,307 km (0.077 R)
• M10: 7,515,049 km (0.118 R)
• M11: 7,937,513 km (0.07 R)
• M12: 8,375,686 km (0.08 R)
• M13: 9,523,849 km (0.059 R)
• M14: 10,571,932 km (0.105 R)
• M15: 10,979,137 km (0.091 R)
• M16: 11,439,001 km (0.107 R)
• M17: 12,896,683 km (0.111 R)
• M18: 14,031,981 km (0.043 R)
• M19: 15,284,414 km (0.093 R)
• M20: 15,858,421 km (0.083 R)
• M21: 17,105,320 km (0.097 R)
• M22: 17,610,661 km (0.108 R)
• M23: 20,225,931 km (0.115 R)
• M24: 21,691,392 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.6

Radius: 9

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.46 AU - 3.84 AU

Year: 3668 Days

Day: 13.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,559,071 km

• M1: 112,049 km (0.115 R)
• M2: 426,354 km (0.096 R)
• M3: 1,136,645 km (0.099 R)
• M4: 2,138,202 km (0.072 R)
• M5: 2,530,298 km (0.119 R)
• M6: 3,023,971 km (0.058 R)
• M7: 3,400,958 km (0.111 R)
• M8: 4,003,239 km (0.119 R)
• M9: 4,458,765 km (0.109 R)
• M10: 4,897,984 km (0.096 R)
• M11: 5,750,243 km (0.1 R)
• M12: 6,301,062 km (0.069 R)
• M13: 8,024,729 km (0.119 R)
• M14: 12,002,536 km (0.081 R)
• M15: 13,048,375 km (0.09 R)
• M16: 16,095,534 km (0.093 R)
• M17: 16,954,675 km (0.096 R)
• M18: 18,025,646 km (0.119 R)
• M19: 18,392,460 km (0.102 R)
• M20: 19,077,917 km (0.07 R)
• M21: 19,458,793 km (0.03 R)
• M22: 24,065,361 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.9

Radius: 10.9

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.74 AU - 5.02 AU

Year: 6013 Days

Day: 14.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,559,071 km

• M1: 136,732 km (0.109 R)
• M2: 482,902 km (0.053 R)
• M3: 1,129,763 km (0.091 R)
• M4: 1,568,534 km (0.095 R)
• M5: 2,167,823 km (0.086 R)
• M6: 4,320,686 km (0.048 R)
• M7: 7,776,696 km (0.107 R)
• M8: 9,782,803 km (0.117 R)
• M9: 11,599,221 km (0.113 R)
• M10: 12,965,049 km (0.115 R)
• M11: 14,202,223 km (0.111 R)
• M12: 16,521,888 km (0.039 R)
• M13: 18,110,917 km (0.103 R)
• M14: 18,523,657 km (0.091 R)
• M15: 19,083,602 km (0.084 R)
• M16: 19,727,172 km (0.119 R)
• M17: 21,590,563 km (0.092 R)
• M18: 22,446,562 km (0.107 R)
• M19: 23,487,314 km (0.109 R)
• M20: 25,492,524 km (0.115 R)
• M21: 28,897,222 km (0.091 R)
• M22: 31,790,595 km (0.104 R)
• M23: 32,796,491 km (0.038 R)
• M24: 36,266,713 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.4

Radius: 7.6

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.7 AU - 6.98 AU

Year: 11735 Days

Day: 23.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,559,071 km

• M1: 94,695 km (0.065 R)
• M2: 613,052 km (0.031 R)
• M3: 1,388,268 km (0.111 R)
• M4: 1,837,361 km (0.073 R)
• M5: 2,982,682 km (0.107 R)
• M6: 3,286,366 km (0.114 R)
• M7: 3,563,122 km (0.108 R)
• M8: 5,469,298 km (0.116 R)
• M9: 5,825,939 km (0.087 R)
• M10: 6,622,249 km (0.081 R)
• M11: 7,929,435 km (0.098 R)
• M12: 8,471,877 km (0.083 R)
• M13: 8,950,141 km (0.087 R)
• M14: 9,309,176 km (0.12 R)
• M15: 9,865,531 km (0.113 R)
• M16: 10,152,011 km (0.091 R)
• M17: 10,641,645 km (0.072 R)
• M18: 11,198,448 km (0.101 R)
• M19: 14,036,768 km (0.114 R)
• M20: 17,183,859 km (0.094 R)
• M21: 17,738,867 km (0.098 R)
• M22: 18,957,790 km (0.102 R)
• M23: 20,078,877 km (0.1 R)
• M24: 20,539,339 km (0.109 R)
• M25: 22,125,675 km (0.104 R)
• M26: 22,782,409 km (0.114 R)
• M27: 23,452,159 km (0.038 R)
• M28: 24,481,243 km (0.118 R)
• M29: 30,887,921 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.9

Radius: 3.1

Gravity: 96.76 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.69 AU - 10.51 AU

Year: 18008 Days

Day: 22.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,559,071 km

• M1: 38,596 km (0.098 R)
• M2: 174,282 km (0.102 R)
• M3: 611,855 km (0.06 R)
• M4: 1,083,837 km (0.036 R)
• M5: 3,097,574 km (0.117 R)
• M6: 4,804,635 km (0.07 R)
• M7: 5,293,371 km (0.077 R)
• M8: 10,763,716 km (0.045 R)
• M9: 11,206,975 km (0.11 R)
• M10: 16,412,233 km (0.064 R)
• M11: 16,829,910 km (0.119 R)
• M12: 26,855,810 km (0.1 R)
• M13: 27,669,622 km (0.114 R)
• M14: 34,917,041 km (0.105 R)
• M15: 36,306,356 km (0.044 R)
• M16: 36,447,277 km (0.036 R)
• M17: 43,809,138 km (0.086 R)
• M18: 45,751,816 km (0.085 R)
• M19: 66,935,772 km (0.027 R)
• M20: 67,147,752 km (0.119 R)
• M21: 71,480,705 km (0.081 R)
• M22: 72,816,016 km (0.057 R)
• M23: 76,689,553 km (0.037 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 11,044 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit