🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.51 AU - 0.77 AU

Year: 336 Days

Day: 21.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.6

Radius: 11

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.99 AU - 1.23 AU

Year: 767 Days

Day: 9.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,014,460 km

• M1: 144,661 km (0.057 R)
• M2: 749,037 km (0.081 R)
• M3: 1,216,380 km (0.097 R)
• M4: 1,738,776 km (0.094 R)
• M5: 2,439,044 km (0.073 R)
• M6: 4,658,328 km (0.112 R)
• M7: 6,288,945 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.3

Radius: 14.2

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.64 AU - 2.16 AU

Year: 1718 Days

Day: 13.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 93.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,014,460 km

• M1: 176,525 km (0.115 R)
• M2: 672,442 km (0.107 R)
• M3: 1,204,861 km (0.107 R)
• M4: 1,859,352 km (0.026 R)
• M5: 2,514,740 km (0.102 R)
• M6: 3,139,012 km (0.099 R)
• M7: 3,786,472 km (0.109 R)
• M8: 4,451,285 km (0.104 R)
• M9: 5,154,245 km (0.08 R)
• M10: 5,866,331 km (0.034 R)
• M11: 7,020,628 km (0.091 R)
• M12: 8,080,978 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.2

Radius: 9.1

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.01 AU - 2.01 AU

Year: 1869 Days

Day: 14.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,014,460 km

• M1: 143,913 km (0.111 R)
• M2: 992,731 km (0.076 R)
• M3: 1,783,655 km (0.094 R)
• M4: 3,499,393 km (0.109 R)
• M5: 4,620,181 km (0.043 R)
• M6: 5,085,430 km (0.113 R)
• M7: 6,429,567 km (0.118 R)
• M8: 9,320,995 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.7

Radius: 9.4

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 3.15 AU - 5.05 AU

Year: 5446 Days

Day: 13.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,014,460 km

• M1: 117,285 km (0.093 R)
• M2: 442,361 km (0.102 R)
• M3: 804,388 km (0.045 R)
• M4: 1,456,634 km (0.113 R)
• M5: 1,997,431 km (0.055 R)
• M6: 2,738,090 km (0.116 R)
• M7: 3,543,226 km (0.061 R)
• M8: 4,059,637 km (0.102 R)
• M9: 4,651,447 km (0.073 R)
• M10: 5,159,780 km (0.084 R)
• M11: 5,854,363 km (0.031 R)
• M12: 6,415,355 km (0.103 R)
• M13: 7,288,259 km (0.095 R)
• M14: 7,900,563 km (0.114 R)
• M15: 8,822,983 km (0.032 R)
• M16: 11,584,560 km (0.092 R)
• M17: 16,950,187 km (0.059 R)
• M18: 17,387,162 km (0.06 R)
• M19: 19,480,934 km (0.041 R)
• M20: 22,105,329 km (0.041 R)
• M21: 24,084,659 km (0.064 R)
• M22: 25,117,333 km (0.098 R)
• M23: 28,044,215 km (0.092 R)
• M24: 28,920,560 km (0.093 R)
• M25: 30,177,930 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 490.4

Radius: 5.2

Gravity: 18.14 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 6.22 AU - 7.26 AU

Year: 11479 Days

Day: 22 Hours

Environment

Temp: -218 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,014,460 km

• M1: 64,776 km (0.073 R)
• M2: 257,009 km (0.089 R)
• M3: 475,123 km (0.117 R)
• M4: 988,692 km (0.091 R)
• M5: 2,404,187 km (0.102 R)
• M6: 3,001,980 km (0.12 R)
• M7: 3,276,493 km (0.088 R)
• M8: 3,567,610 km (0.12 R)
• M9: 3,955,517 km (0.073 R)
• M10: 5,288,883 km (0.105 R)
• M11: 6,291,937 km (0.105 R)
• M12: 7,664,049 km (0.107 R)
• M13: 8,531,716 km (0.093 R)
• M14: 9,129,808 km (0.088 R)
• M15: 10,154,105 km (0.093 R)
• M16: 13,317,202 km (0.085 R)
• M17: 14,566,644 km (0.101 R)
• M18: 15,621,010 km (0.083 R)
• M19: 24,100,516 km (0.108 R)
• M20: 24,462,842 km (0.046 R)
• M21: 26,713,542 km (0.05 R)
• M22: 28,388,889 km (0.098 R)
• M23: 30,448,103 km (0.084 R)
• M24: 32,165,487 km (0.106 R)
• M25: 33,382,914 km (0.096 R)
• M26: 36,263,721 km (0.118 R)
• M27: 37,825,074 km (0.114 R)
• M28: 38,560,646 km (0.076 R)
• M29: 41,210,324 km (0.081 R)
• M30: 41,598,530 km (0.088 R)
• M31: 42,382,124 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 403.9

Radius: 5.5

Gravity: 13.35 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.1 AU - 8.2 AU

Year: 13880 Days

Day: 20.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 50,014,460 km

• M1: 73,303 km (0.098 R)
• M2: 374,443 km (0.105 R)
• M3: 564,732 km (0.058 R)
• M4: 1,585,289 km (0.112 R)
• M5: 2,101,551 km (0.11 R)
• M6: 2,437,697 km (0.093 R)
• M7: 2,940,945 km (0.103 R)
• M8: 3,716,161 km (0.114 R)
• M9: 4,440,065 km (0.103 R)
• M10: 6,693,757 km (0.081 R)
• M11: 6,970,363 km (0.069 R)
• M12: 9,221,063 km (0.094 R)
• M13: 9,712,941 km (0.077 R)
• M14: 12,557,245 km (0.062 R)
• M15: 13,100,136 km (0.091 R)
• M16: 14,168,265 km (0.09 R)
• M17: 15,497,591 km (0.062 R)
• M18: 17,053,409 km (0.1 R)
• M19: 17,569,672 km (0.085 R)
• M20: 18,944,626 km (0.092 R)
• M21: 21,649,205 km (0.076 R)
• M22: 22,080,197 km (0.118 R)
• M23: 23,497,936 km (0.045 R)
• M24: 26,123,229 km (0.079 R)
• M25: 26,808,836 km (0.094 R)
• M26: 27,607,090 km (0.1 R)
• M27: 29,146,153 km (0.106 R)
• M28: 30,203,361 km (0.1 R)
• M29: 33,299,439 km (0.117 R)
• M30: 33,758,256 km (0.098 R)
• M31: 34,571,470 km (0.08 R)
• M32: 35,397,699 km (0.066 R)
• M33: 39,214,987 km (0.042 R)
• M34: 41,685,297 km (0.046 R)
• M35: 43,434,096 km (0.084 R)
• M36: 45,794,003 km (0.099 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 18,829 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit