🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.46 AU - 0.58 AU

Year: 246 Days

Day: 17.8 Hours

Environment

Temp: -123 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.54 AU - 0.6 AU

Year: 282 Days

Day: 13.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 15.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,329,033 km

• M1: 32,463 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.3

Radius: 13.3

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.62 AU - 1 AU

Year: 478 Days

Day: 10.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,329,033 km

• M1: 166,502 km (0.091 R)
• M2: 693,087 km (0.061 R)
• M3: 1,294,919 km (0.113 R)
• M4: 1,914,554 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.7

Radius: 14.5

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.66 AU - 2.54 AU

Year: 1996 Days

Day: 12.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,329,033 km

• M1: 180,415 km (0.025 R)
• M2: 672,143 km (0.114 R)
• M3: 1,274,275 km (0.11 R)
• M4: 3,356,378 km (0.083 R)
• M5: 4,403,862 km (0.051 R)
• M6: 4,984,302 km (0.105 R)
• M7: 5,506,847 km (0.049 R)
• M8: 6,019,818 km (0.106 R)
• M9: 6,712,157 km (0.119 R)
• M10: 7,919,412 km (0.108 R)
• M11: 9,297,657 km (0.068 R)
• M12: 10,324,048 km (0.107 R)
• M13: 12,188,636 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612

Radius: 8.5

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.67 AU - 2.99 AU

Year: 3123 Days

Day: 9 Hours

Environment

Temp: -200 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,329,033 km

• M1: 105,766 km (0.11 R)
• M2: 559,945 km (0.102 R)
• M3: 900,729 km (0.096 R)
• M4: 1,168,060 km (0.051 R)
• M5: 2,764,718 km (0.119 R)
• M6: 4,339,086 km (0.026 R)
• M7: 4,604,922 km (0.099 R)
• M8: 5,545,593 km (0.054 R)
• M9: 6,184,974 km (0.057 R)
• M10: 8,031,012 km (0.096 R)
• M11: 9,097,944 km (0.12 R)
• M12: 10,024,853 km (0.046 R)
• M13: 14,271,487 km (0.104 R)
• M14: 15,113,274 km (0.118 R)
• M15: 15,675,314 km (0.099 R)
• M16: 17,445,356 km (0.105 R)
• M17: 18,989,655 km (0.048 R)
• M18: 19,584,007 km (0.032 R)
• M19: 20,252,261 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 842.6

Radius: 8.9

Gravity: 10.64 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 3.71 AU - 4.09 AU

Year: 5052 Days

Day: 8.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,329,033 km

• M1: 111,151 km (0.116 R)
• M2: 480,508 km (0.094 R)
• M3: 910,752 km (0.088 R)
• M4: 1,768,696 km (0.115 R)
• M5: 2,188,766 km (0.04 R)
• M6: 3,169,081 km (0.09 R)
• M7: 3,634,630 km (0.086 R)
• M8: 5,054,912 km (0.042 R)
• M9: 6,677,899 km (0.089 R)
• M10: 7,124,000 km (0.09 R)
• M11: 9,110,062 km (0.103 R)
• M12: 10,777,031 km (0.098 R)
• M13: 12,028,866 km (0.038 R)
• M14: 12,432,780 km (0.082 R)
• M15: 13,863,384 km (0.109 R)
• M16: 14,818,716 km (0.088 R)
• M17: 16,672,533 km (0.03 R)
• M18: 19,840,418 km (0.098 R)
• M19: 20,191,823 km (0.118 R)
• M20: 21,125,164 km (0.114 R)
• M21: 23,000,373 km (0.115 R)
• M22: 25,393,939 km (0.115 R)
• M23: 25,725,149 km (0.059 R)
• M24: 28,213,410 km (0.085 R)
• M25: 32,385,396 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.5

Radius: 7.5

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 7.44 AU - 8.94 AU

Year: 15376 Days

Day: 16.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,329,033 km

• M1: 93,199 km (0.096 R)
• M2: 401,670 km (0.087 R)
• M3: 1,041,351 km (0.082 R)
• M4: 1,642,585 km (0.072 R)
• M5: 2,197,294 km (0.104 R)
• M6: 2,455,799 km (0.106 R)
• M7: 2,940,197 km (0.054 R)
• M8: 3,728,877 km (0.066 R)
• M9: 4,128,303 km (0.119 R)
• M10: 4,524,438 km (0.056 R)
• M11: 6,017,874 km (0.118 R)
• M12: 6,731,156 km (0.109 R)
• M13: 7,499,640 km (0.079 R)
• M14: 8,090,103 km (0.103 R)
• M15: 9,887,073 km (0.092 R)
• M16: 10,935,604 km (0.114 R)
• M17: 11,995,505 km (0.112 R)
• M18: 13,316,903 km (0.115 R)
• M19: 16,545,375 km (0.036 R)
• M20: 17,001,648 km (0.115 R)
• M21: 21,225,095 km (0.073 R)
• M22: 21,493,324 km (0.117 R)
• M23: 22,403,927 km (0.103 R)
• M24: 23,625,693 km (0.06 R)
• M25: 25,189,589 km (0.06 R)
• M26: 27,451,209 km (0.089 R)
• M27: 27,769,703 km (0.092 R)
• M28: 29,399,422 km (0.09 R)
• M29: 32,373,727 km (0.104 R)
• M30: 34,546,487 km (0.113 R)
• M31: 41,645,205 km (0.104 R)
• M32: 42,206,795 km (0.112 R)
• M33: 44,943,090 km (0.069 R)
• M34: 47,337,254 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.5

Radius: 7.5

Gravity: 16.12 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 7.77 AU - 9.29 AU

Year: 16343 Days

Day: 19.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,329,033 km

• M1: 93,499 km (0.043 R)
• M2: 414,984 km (0.092 R)
• M3: 807,978 km (0.088 R)
• M4: 1,114,055 km (0.084 R)
• M5: 1,435,092 km (0.077 R)
• M6: 1,694,046 km (0.093 R)
• M7: 2,182,633 km (0.114 R)
• M8: 2,438,296 km (0.061 R)
• M9: 4,937,478 km (0.119 R)
• M10: 5,305,189 km (0.1 R)
• M11: 5,891,164 km (0.113 R)
• M12: 6,476,092 km (0.108 R)
• M13: 7,284,220 km (0.108 R)
• M14: 8,991,580 km (0.116 R)
• M15: 9,596,703 km (0.079 R)
• M16: 10,053,725 km (0.104 R)
• M17: 11,197,401 km (0.075 R)
• M18: 13,315,557 km (0.06 R)
• M19: 15,923,347 km (0.095 R)
• M20: 22,620,096 km (0.05 R)
• M21: 26,082,838 km (0.106 R)
• M22: 26,636,499 km (0.106 R)
• M23: 28,228,669 km (0.098 R)
• M24: 34,168,902 km (0.067 R)
• M25: 34,831,919 km (0.077 R)
• M26: 37,289,513 km (0.112 R)
• M27: 37,569,560 km (0.097 R)
• M28: 41,940,062 km (0.076 R)
• M29: 43,314,567 km (0.102 R)
• M30: 48,444,578 km (0.116 R)
• M31: 52,899,901 km (0.101 R)
• M32: 61,437,751 km (0.112 R)
• M33: 63,607,219 km (0.087 R)
• M34: 64,610,124 km (0.086 R)
• M35: 71,927,105 km (0.032 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.2

Radius: 4.7

Gravity: 38.8 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.91 AU - 11.45 AU

Year: 19757 Days

Day: 23 Hours

Environment

Temp: -225 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 81,329,033 km

• M1: 58,642 km (0.106 R)
• M2: 271,969 km (0.032 R)
• M3: 598,541 km (0.1 R)
• M4: 811,120 km (0.114 R)
• M5: 1,086,529 km (0.082 R)
• M6: 2,822,613 km (0.042 R)
• M7: 4,732,529 km (0.099 R)
• M8: 6,036,723 km (0.069 R)
• M9: 8,124,810 km (0.083 R)
• M10: 9,619,891 km (0.109 R)
• M11: 10,217,235 km (0.072 R)
• M12: 11,289,104 km (0.083 R)
• M13: 14,102,741 km (0.117 R)
• M14: 19,804,813 km (0.037 R)
• M15: 29,392,541 km (0.103 R)
• M16: 30,646,021 km (0.072 R)
• M17: 35,173,900 km (0.109 R)
• M18: 36,585,954 km (0.075 R)
• M19: 58,714,172 km (0.081 R)
• M20: 72,186,358 km (0.1 R)
• M21: 73,318,066 km (0.068 R)
• M22: 74,922,204 km (0.11 R)
• M23: 77,018,968 km (0.113 R)
• M24: 79,394,133 km (0.042 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 13,326 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit