🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.42 AU - 0.6 AU

Year: 239 Days

Day: 41 Hours

Environment

Temp: -126 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,212,112 km

• M1: 37,399 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.2

Radius: 14.1

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.67 AU - 0.71 AU

Year: 376 Days

Day: 11.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,212,112 km

• M1: 175,329 km (0.112 R)
• M2: 699,370 km (0.115 R)
• M3: 1,172,997 km (0.091 R)
• M4: 1,696,889 km (0.087 R)
• M5: 2,238,882 km (0.108 R)
• M6: 2,770,852 km (0.09 R)
• M7: 3,734,561 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.3

Radius: 10.2

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.6 AU - 2 AU

Year: 1584 Days

Day: 14 Hours

Environment

Temp: -190 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,212,112 km

• M1: 127,158 km (0.115 R)
• M2: 515,963 km (0.029 R)
• M3: 849,566 km (0.112 R)
• M4: 1,358,947 km (0.066 R)
• M5: 1,889,122 km (0.079 R)
• M6: 2,487,813 km (0.115 R)
• M7: 2,825,305 km (0.116 R)
• M8: 5,147,812 km (0.099 R)
• M9: 5,838,805 km (0.105 R)
• M10: 6,666,231 km (0.083 R)
• M11: 7,965,339 km (0.113 R)
• M12: 8,374,190 km (0.115 R)
• M13: 10,219,629 km (0.113 R)
• M14: 11,057,377 km (0.105 R)
• M15: 11,678,059 km (0.119 R)
• M16: 12,711,331 km (0.08 R)
• M17: 13,351,760 km (0.076 R)
• M18: 14,182,327 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.2

Radius: 15

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.31 AU - 3.65 AU

Year: 3375 Days

Day: 11.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,212,112 km

• M1: 186,549 km (0.076 R)
• M2: 1,209,648 km (0.112 R)
• M3: 2,687,675 km (0.117 R)
• M4: 3,639,417 km (0.062 R)
• M5: 5,879,047 km (0.055 R)
• M6: 6,688,670 km (0.114 R)
• M7: 9,994,484 km (0.112 R)
• M8: 14,128,771 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.3

Radius: 9.6

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.85 AU - 4.75 AU

Year: 5849 Days

Day: 11.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,212,112 km

• M1: 121,174 km (0.118 R)
• M2: 547,977 km (0.108 R)
• M3: 960,568 km (0.062 R)
• M4: 1,485,208 km (0.057 R)
• M5: 1,934,600 km (0.108 R)
• M6: 3,548,312 km (0.102 R)
• M7: 4,075,046 km (0.109 R)
• M8: 4,729,088 km (0.093 R)
• M9: 6,032,534 km (0.057 R)
• M10: 11,551,648 km (0.094 R)
• M11: 11,976,656 km (0.054 R)
• M12: 14,314,871 km (0.091 R)
• M13: 14,916,104 km (0.104 R)
• M14: 19,807,057 km (0.081 R)
• M15: 20,899,421 km (0.108 R)
• M16: 21,319,193 km (0.052 R)
• M17: 23,054,827 km (0.05 R)
• M18: 27,217,986 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.3

Radius: 7.7

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 5.36 AU - 8 AU

Year: 11326 Days

Day: 23 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,212,112 km

• M1: 96,790 km (0.103 R)
• M2: 359,035 km (0.117 R)
• M3: 695,780 km (0.111 R)
• M4: 1,240,017 km (0.063 R)
• M5: 2,056,073 km (0.048 R)
• M6: 4,518,753 km (0.032 R)
• M7: 5,626,526 km (0.03 R)
• M8: 5,944,421 km (0.097 R)
• M9: 6,743,722 km (0.11 R)
• M10: 9,450,097 km (0.105 R)
• M11: 9,775,922 km (0.061 R)
• M12: 16,882,569 km (0.034 R)
• M13: 19,050,690 km (0.117 R)
• M14: 22,316,861 km (0.091 R)
• M15: 23,041,363 km (0.116 R)
• M16: 25,701,064 km (0.066 R)
• M17: 27,721,682 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92

Radius: 7.6

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.9 AU - 9.7 AU

Year: 14291 Days

Day: 18.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,212,112 km

• M1: 96,939 km (0.037 R)
• M2: 373,995 km (0.117 R)
• M3: 924,515 km (0.103 R)
• M4: 1,519,166 km (0.084 R)
• M5: 1,922,183 km (0.06 R)
• M6: 3,464,238 km (0.095 R)
• M7: 3,998,901 km (0.119 R)
• M8: 4,360,329 km (0.117 R)
• M9: 6,247,057 km (0.107 R)
• M10: 6,536,380 km (0.118 R)
• M11: 8,348,758 km (0.106 R)
• M12: 10,835,823 km (0.093 R)
• M13: 12,574,599 km (0.114 R)
• M14: 13,995,030 km (0.102 R)
• M15: 15,461,090 km (0.109 R)
• M16: 18,105,830 km (0.075 R)
• M17: 28,169,877 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 707.7

Radius: 3.7

Gravity: 51.69 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 6.3 AU - 9.74 AU

Year: 14899 Days

Day: 20.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,212,112 km

• M1: 46,076 km (0.09 R)
• M2: 285,882 km (0.078 R)
• M3: 614,398 km (0.055 R)
• M4: 941,270 km (0.07 R)
• M5: 1,570,628 km (0.106 R)
• M6: 2,135,360 km (0.112 R)
• M7: 2,594,925 km (0.112 R)
• M8: 3,377,022 km (0.075 R)
• M9: 5,537,515 km (0.117 R)
• M10: 6,114,514 km (0.113 R)
• M11: 8,326,917 km (0.054 R)
• M12: 8,623,719 km (0.055 R)
• M13: 9,238,716 km (0.116 R)
• M14: 9,610,616 km (0.12 R)
• M15: 11,743,882 km (0.075 R)
• M16: 14,525,056 km (0.1 R)
• M17: 15,173,263 km (0.058 R)
• M18: 16,143,256 km (0.07 R)
• M19: 17,313,111 km (0.092 R)
• M20: 20,616,681 km (0.062 R)
• M21: 21,619,286 km (0.053 R)
• M22: 21,804,937 km (0.088 R)
• M23: 22,558,461 km (0.09 R)
• M24: 30,485,204 km (0.116 R)
• M25: 31,545,553 km (0.07 R)
• M26: 31,664,783 km (0.105 R)
• M27: 33,120,221 km (0.115 R)
• M28: 37,618,629 km (0.106 R)
• M29: 42,362,377 km (0.09 R)
• M30: 42,653,195 km (0.067 R)
• M31: 44,576,126 km (0.035 R)
• M32: 52,678,347 km (0.107 R)
• M33: 58,053,398 km (0.038 R)
• M34: 59,315,705 km (0.057 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 13,290 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit