🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.6

Radius: 11.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1 AU - 1 AU

Year: 703 Days

Day: 13.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,727,490 km

• M1: 143,016 km (0.1 R)
• M2: 626,516 km (0.053 R)
• M3: 1,154,896 km (0.098 R)
• M4: 1,523,355 km (0.091 R)
• M5: 1,963,921 km (0.079 R)
• M6: 2,394,015 km (0.087 R)
• M7: 2,781,174 km (0.084 R)
• M8: 3,233,408 km (0.094 R)
• M9: 3,930,834 km (0.067 R)
• M10: 4,561,688 km (0.106 R)
• M11: 4,987,593 km (0.098 R)
• M12: 5,625,030 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.4

Radius: 14.5

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.18 AU - 1.6 AU

Year: 1152 Days

Day: 12.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 131.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 55,727,490 km

• M1: 288,275 km (0.116 R)
• M2: 797,656 km (0.097 R)
• M3: 1,441,375 km (0.108 R)
• M4: 3,047,907 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.9

Radius: 11.2

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.36 AU - 1.52 AU

Year: 1215 Days

Day: 14.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,727,490 km

• M1: 139,425 km (0.091 R)
• M2: 536,458 km (0.091 R)
• M3: 1,278,613 km (0.082 R)
• M4: 1,684,472 km (0.054 R)
• M5: 2,077,466 km (0.065 R)
• M6: 2,844,454 km (0.038 R)
• M7: 3,807,565 km (0.044 R)
• M8: 4,167,198 km (0.099 R)
• M9: 5,055,959 km (0.103 R)
• M10: 5,428,159 km (0.116 R)
• M11: 6,089,381 km (0.113 R)
• M12: 6,705,276 km (0.115 R)
• M13: 7,207,027 km (0.037 R)
• M14: 7,706,684 km (0.09 R)
• M15: 8,399,172 km (0.119 R)
• M16: 8,804,882 km (0.103 R)
• M17: 9,376,346 km (0.099 R)
• M18: 10,004,507 km (0.111 R)
• M19: 10,965,075 km (0.087 R)
• M20: 12,168,141 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.9

Radius: 10.9

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.51 AU - 1.85 AU

Year: 1531 Days

Day: 14.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,727,490 km

• M1: 136,134 km (0.117 R)
• M2: 487,988 km (0.079 R)
• M3: 832,063 km (0.118 R)
• M4: 1,532,929 km (0.095 R)
• M5: 1,872,965 km (0.075 R)
• M6: 2,358,410 km (0.112 R)
• M7: 2,749,908 km (0.074 R)
• M8: 3,426,988 km (0.032 R)
• M9: 4,265,933 km (0.064 R)
• M10: 4,792,667 km (0.103 R)
• M11: 6,834,828 km (0.059 R)
• M12: 7,319,824 km (0.112 R)
• M13: 7,800,332 km (0.034 R)
• M14: 9,034,066 km (0.065 R)
• M15: 9,556,312 km (0.055 R)
• M16: 11,139,805 km (0.07 R)
• M17: 12,030,661 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.2

Radius: 13.9

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.39 AU - 2.23 AU

Year: 1712 Days

Day: 10.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 72.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,727,490 km

• M1: 172,935 km (0.109 R)
• M2: 747,092 km (0.057 R)
• M3: 1,410,708 km (0.107 R)
• M4: 1,917,396 km (0.06 R)
• M5: 2,557,974 km (0.063 R)
• M6: 3,724,389 km (0.042 R)
• M7: 4,173,182 km (0.116 R)
• M8: 5,377,146 km (0.106 R)
• M9: 6,212,800 km (0.117 R)
• M10: 6,801,318 km (0.111 R)
• M11: 7,933,923 km (0.083 R)
• M12: 10,076,015 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.5

Radius: 10.1

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.77 AU - 2.11 AU

Year: 1899 Days

Day: 7.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,727,490 km

• M1: 125,662 km (0.09 R)
• M2: 483,351 km (0.027 R)
• M3: 965,205 km (0.08 R)
• M4: 1,487,601 km (0.103 R)
• M5: 1,991,447 km (0.062 R)
• M6: 2,429,320 km (0.113 R)
• M7: 2,902,797 km (0.116 R)
• M8: 3,629,394 km (0.091 R)
• M9: 4,088,809 km (0.081 R)
• M10: 4,416,279 km (0.051 R)
• M11: 5,124,625 km (0.081 R)
• M12: 8,096,835 km (0.084 R)
• M13: 9,187,703 km (0.096 R)
• M14: 9,656,842 km (0.101 R)
• M15: 11,695,412 km (0.108 R)
• M16: 12,209,580 km (0.087 R)
• M17: 12,854,197 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.5

Radius: 8.7

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.17 AU - 3.45 AU

Year: 3311 Days

Day: 9.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 55,727,490 km

• M1: 108,758 km (0.077 R)
• M2: 849,866 km (0.095 R)
• M3: 1,584,391 km (0.089 R)
• M4: 2,406,431 km (0.091 R)
• M5: 2,759,183 km (0.065 R)
• M6: 3,314,042 km (0.085 R)
• M7: 3,837,335 km (0.097 R)
• M8: 4,137,279 km (0.115 R)
• M9: 5,344,833 km (0.108 R)
• M10: 5,765,053 km (0.065 R)
• M11: 6,159,543 km (0.1 R)
• M12: 7,211,964 km (0.072 R)
• M13: 8,497,309 km (0.091 R)
• M14: 10,260,469 km (0.091 R)
• M15: 10,667,824 km (0.115 R)
• M16: 11,370,785 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202.9

Radius: 5.3

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 10.16 AU - 10.32 AU

Year: 23033 Days

Day: 17.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,727,490 km

• M1: 65,973 km (0.088 R)
• M2: 441,763 km (0.058 R)
• M3: 725,699 km (0.087 R)
• M4: 1,010,683 km (0.065 R)
• M5: 1,509,443 km (0.085 R)
• M6: 2,066,246 km (0.119 R)
• M7: 3,317,183 km (0.035 R)
• M8: 3,522,431 km (0.065 R)
• M9: 3,763,583 km (0.038 R)
• M10: 4,189,788 km (0.107 R)
• M11: 5,734,834 km (0.061 R)
• M12: 6,298,968 km (0.076 R)
• M13: 7,191,918 km (0.032 R)
• M14: 14,050,232 km (0.087 R)
• M15: 15,071,537 km (0.107 R)
• M16: 18,994,591 km (0.115 R)
• M17: 23,267,406 km (0.101 R)
• M18: 25,083,225 km (0.096 R)
• M19: 27,928,277 km (0.098 R)
• M20: 30,420,278 km (0.05 R)
• M21: 34,490,986 km (0.079 R)
• M22: 36,592,986 km (0.091 R)
• M23: 40,778,584 km (0.111 R)
• M24: 50,240,799 km (0.08 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: 423 - 10,622 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit