🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.57 AU - 0.59 AU

Year: 290 Days

Day: 37.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.7

Radius: 10.8

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.75 AU - 1.13 AU

Year: 598 Days

Day: 9.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,595,079 km

• M1: 134,488 km (0.106 R)
• M2: 552,166 km (0.115 R)
• M3: 931,247 km (0.077 R)
• M4: 1,283,400 km (0.06 R)
• M5: 1,637,349 km (0.112 R)
• M6: 1,981,274 km (0.106 R)
• M7: 2,412,116 km (0.06 R)
• M8: 2,765,466 km (0.119 R)
• M9: 3,176,561 km (0.028 R)
• M10: 3,514,802 km (0.112 R)
• M11: 4,081,479 km (0.069 R)
• M12: 4,557,050 km (0.055 R)
• M13: 5,037,110 km (0.042 R)
• M14: 5,794,075 km (0.102 R)

Planet 3 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.4

Radius: 6.4

Gravity: 21.1 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.94 AU - 7.5 AU

Year: 10176 Days

Day: 18 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,595,079 km

• M1: 80,035 km (0.096 R)
• M2: 341,233 km (0.052 R)
• M3: 667,655 km (0.067 R)
• M4: 1,132,605 km (0.084 R)
• M5: 1,623,436 km (0.087 R)
• M6: 2,100,055 km (0.069 R)
• M7: 3,453,616 km (0.101 R)
• M8: 5,139,584 km (0.093 R)
• M9: 6,086,090 km (0.035 R)
• M10: 7,143,747 km (0.083 R)
• M11: 7,394,623 km (0.117 R)
• M12: 7,913,727 km (0.07 R)
• M13: 9,417,186 km (0.052 R)
• M14: 12,489,926 km (0.119 R)
• M15: 12,732,125 km (0.097 R)
• M16: 14,449,359 km (0.119 R)
• M17: 15,122,849 km (0.061 R)
• M18: 15,536,936 km (0.075 R)
• M19: 16,029,412 km (0.071 R)
• M20: 17,268,980 km (0.065 R)
• M21: 18,336,660 km (0.1 R)
• M22: 19,773,099 km (0.099 R)
• M23: 22,509,393 km (0.095 R)
• M24: 23,139,948 km (0.077 R)
• M25: 30,982,317 km (0.09 R)
• M26: 32,100,561 km (0.049 R)
• M27: 33,129,795 km (0.119 R)
• M28: 38,735,526 km (0.109 R)
• M29: 47,540,707 km (0.086 R)
• M30: 51,004,796 km (0.089 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.8

Radius: 7.9

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.32 AU - 7.12 AU

Year: 11428 Days

Day: 17.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,595,079 km

• M1: 99,931 km (0.081 R)
• M2: 819,497 km (0.119 R)
• M3: 1,092,214 km (0.101 R)
• M4: 1,451,698 km (0.093 R)
• M5: 1,724,265 km (0.079 R)
• M6: 2,147,328 km (0.119 R)
• M7: 2,797,031 km (0.111 R)
• M8: 3,112,982 km (0.115 R)
• M9: 3,382,857 km (0.096 R)
• M10: 4,397,579 km (0.106 R)
• M11: 7,925,097 km (0.101 R)
• M12: 8,691,487 km (0.078 R)
• M13: 8,957,771 km (0.104 R)
• M14: 10,174,899 km (0.054 R)
• M15: 11,874,032 km (0.102 R)
• M16: 13,516,168 km (0.072 R)
• M17: 14,733,445 km (0.116 R)
• M18: 15,628,041 km (0.113 R)
• M19: 16,626,008 km (0.049 R)
• M20: 16,967,989 km (0.098 R)
• M21: 17,524,792 km (0.074 R)
• M22: 21,125,164 km (0.057 R)
• M23: 21,526,386 km (0.08 R)
• M24: 22,261,510 km (0.072 R)
• M25: 26,006,243 km (0.044 R)
• M26: 26,746,454 km (0.038 R)
• M27: 31,903,840 km (0.119 R)
• M28: 33,181,556 km (0.108 R)
• M29: 36,639,810 km (0.033 R)
• M30: 40,085,797 km (0.082 R)
• M31: 41,447,436 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.4

Radius: 3.8

Gravity: 46.29 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.95 AU - 9.03 AU

Year: 13447 Days

Day: 20.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,595,079 km

• M1: 47,423 km (0.102 R)
• M2: 384,766 km (0.074 R)
• M3: 545,883 km (0.049 R)
• M4: 1,041,201 km (0.092 R)
• M5: 1,264,102 km (0.102 R)
• M6: 1,625,530 km (0.098 R)
• M7: 2,223,024 km (0.039 R)
• M8: 2,528,653 km (0.112 R)
• M9: 3,587,058 km (0.11 R)
• M10: 3,751,167 km (0.098 R)
• M11: 3,949,085 km (0.113 R)
• M12: 4,616,590 km (0.072 R)
• M13: 5,010,930 km (0.1 R)
• M14: 6,487,760 km (0.106 R)
• M15: 6,690,615 km (0.079 R)
• M16: 7,024,218 km (0.084 R)
• M17: 9,415,840 km (0.089 R)
• M18: 10,652,715 km (0.078 R)
• M19: 11,574,387 km (0.05 R)
• M20: 14,518,473 km (0.101 R)
• M21: 22,839,855 km (0.111 R)
• M22: 23,881,505 km (0.034 R)
• M23: 24,658,666 km (0.078 R)
• M24: 26,778,617 km (0.045 R)
• M25: 28,581,272 km (0.116 R)
• M26: 29,789,873 km (0.051 R)
• M27: 32,662,601 km (0.063 R)
• M28: 33,861,628 km (0.074 R)
• M29: 38,553,017 km (0.06 R)
• M30: 43,947,516 km (0.056 R)
• M31: 44,673,515 km (0.113 R)
• M32: 44,966,128 km (0.117 R)
• M33: 46,000,448 km (0.115 R)
• M34: 49,980,948 km (0.116 R)
• M35: 50,138,474 km (0.096 R)
• M36: 51,090,515 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.5

Radius: 8

Gravity: 15.62 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 6.17 AU - 9.57 AU

Year: 14483 Days

Day: 17.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,595,079 km

• M1: 109,805 km (0.089 R)
• M2: 829,371 km (0.109 R)
• M3: 1,975,889 km (0.084 R)
• M4: 2,574,280 km (0.066 R)
• M5: 3,003,177 km (0.114 R)
• M6: 3,314,939 km (0.106 R)
• M7: 4,034,505 km (0.044 R)
• M8: 4,648,006 km (0.061 R)
• M9: 5,285,143 km (0.106 R)
• M10: 5,979,128 km (0.089 R)
• M11: 6,732,353 km (0.102 R)
• M12: 7,641,908 km (0.025 R)
• M13: 8,579,587 km (0.119 R)
• M14: 9,427,059 km (0.119 R)
• M15: 10,741,426 km (0.12 R)
• M16: 12,969,537 km (0.033 R)
• M17: 14,155,848 km (0.117 R)
• M18: 16,662,211 km (0.06 R)
• M19: 16,984,893 km (0.1 R)
• M20: 21,188,893 km (0.116 R)
• M21: 22,436,689 km (0.086 R)
• M22: 23,631,377 km (0.034 R)
• M23: 24,347,502 km (0.102 R)
• M24: 29,653,140 km (0.087 R)
• M25: 66,110,740 km (0.056 R)
• M26: 67,735,522 km (0.081 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: 510 - 13,737 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit