🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.6

Radius: 9.1

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.65 AU - 0.75 AU

Year: 397 Days

Day: 12.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,678,018 km

• M1: 115,789 km (0.033 R)
• M2: 498,311 km (0.116 R)
• M3: 826,528 km (0.064 R)
• M4: 1,110,615 km (0.085 R)
• M5: 1,449,155 km (0.03 R)
• M6: 1,878,949 km (0.115 R)
• M7: 2,331,632 km (0.095 R)
• M8: 3,914,827 km (0.1 R)
• M9: 4,426,152 km (0.108 R)
• M10: 4,782,046 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.2

Radius: 9

Gravity: 11.57 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.85 AU - 1.25 AU

Year: 730 Days

Day: 8 Hours

Environment

Temp: -174 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,678,018 km

• M1: 112,049 km (0.11 R)
• M2: 415,583 km (0.118 R)
• M3: 730,935 km (0.114 R)
• M4: 1,185,414 km (0.088 R)
• M5: 1,502,112 km (0.085 R)
• M6: 1,893,909 km (0.108 R)
• M7: 2,739,287 km (0.082 R)
• M8: 3,802,030 km (0.094 R)
• M9: 4,401,917 km (0.098 R)
• M10: 4,777,258 km (0.073 R)
• M11: 5,380,287 km (0.06 R)
• M12: 5,850,025 km (0.114 R)
• M13: 6,283,260 km (0.085 R)
• M14: 7,075,830 km (0.077 R)
• M15: 7,785,971 km (0.071 R)
• M16: 8,108,055 km (0.089 R)
• M17: 8,647,206 km (0.098 R)
• M18: 8,992,777 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.2

Radius: 14.2

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.98 AU - 1.14 AU

Year: 740 Days

Day: 7.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,678,018 km

• M1: 176,675 km (0.116 R)
• M2: 645,066 km (0.068 R)
• M3: 1,136,046 km (0.064 R)
• M4: 1,650,513 km (0.115 R)
• M5: 2,119,652 km (0.118 R)
• M6: 2,712,209 km (0.09 R)
• M7: 3,824,170 km (0.104 R)
• M8: 4,406,106 km (0.102 R)
• M9: 5,581,646 km (0.117 R)
• M10: 6,454,999 km (0.108 R)
• M11: 7,395,371 km (0.067 R)
• M12: 7,969,228 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.5

Radius: 14.1

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.51 AU - 2.25 AU

Year: 1748 Days

Day: 10.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,678,018 km

• M1: 175,628 km (0.082 R)
• M2: 726,597 km (0.088 R)
• M3: 1,183,469 km (0.104 R)
• M4: 1,736,532 km (0.12 R)
• M5: 3,125,548 km (0.119 R)
• M6: 4,324,126 km (0.065 R)
• M7: 4,792,966 km (0.057 R)
• M8: 5,525,547 km (0.114 R)
• M9: 6,512,444 km (0.033 R)
• M10: 7,327,453 km (0.069 R)
• M11: 7,789,412 km (0.12 R)
• M12: 8,332,302 km (0.12 R)
• M13: 9,664,022 km (0.042 R)
• M14: 10,434,900 km (0.064 R)
• M15: 11,360,313 km (0.104 R)
• M16: 12,179,361 km (0.034 R)
• M17: 13,037,454 km (0.106 R)
• M18: 14,111,268 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.7

Radius: 11.7

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.28 AU - 3.74 AU

Year: 3542 Days

Day: 7.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,678,018 km

• M1: 145,559 km (0.06 R)
• M2: 572,511 km (0.094 R)
• M3: 948,600 km (0.103 R)
• M4: 1,399,787 km (0.11 R)
• M5: 2,351,978 km (0.071 R)
• M6: 2,847,895 km (0.05 R)
• M7: 3,890,143 km (0.054 R)
• M8: 8,142,014 km (0.091 R)
• M9: 8,892,247 km (0.045 R)
• M10: 10,065,244 km (0.06 R)
• M11: 10,452,104 km (0.076 R)
• M12: 11,757,645 km (0.091 R)
• M13: 12,538,396 km (0.071 R)
• M14: 14,058,909 km (0.049 R)
• M15: 16,010,563 km (0.035 R)
• M16: 17,078,542 km (0.117 R)
• M17: 19,415,560 km (0.109 R)
• M18: 20,016,494 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.9

Radius: 10.6

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.52 AU - 4.44 AU

Year: 5385 Days

Day: 13.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,678,018 km

• M1: 131,945 km (0.089 R)
• M2: 648,058 km (0.091 R)
• M3: 1,130,212 km (0.109 R)
• M4: 1,633,010 km (0.106 R)
• M5: 2,062,955 km (0.111 R)
• M6: 2,674,960 km (0.034 R)
• M7: 3,404,249 km (0.035 R)
• M8: 4,016,404 km (0.041 R)
• M9: 4,412,838 km (0.075 R)
• M10: 4,808,225 km (0.052 R)
• M11: 6,365,988 km (0.108 R)
• M12: 7,260,134 km (0.072 R)
• M13: 8,003,486 km (0.097 R)
• M14: 9,382,479 km (0.036 R)
• M15: 10,585,695 km (0.042 R)
• M16: 13,900,634 km (0.072 R)
• M17: 14,695,896 km (0.065 R)
• M18: 18,249,743 km (0.114 R)
• M19: 19,341,957 km (0.111 R)
• M20: 27,527,803 km (0.097 R)
• M21: 28,509,465 km (0.067 R)
• M22: 29,885,167 km (0.052 R)
• M23: 31,787,902 km (0.048 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.1

Radius: 5.4

Gravity: 32.65 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.16 AU - 8.3 AU

Year: 11842 Days

Day: 15.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 39,678,018 km

• M1: 67,169 km (0.105 R)
• M2: 273,016 km (0.1 R)
• M3: 552,764 km (0.078 R)
• M4: 904,319 km (0.057 R)
• M5: 1,297,462 km (0.067 R)
• M6: 1,764,058 km (0.074 R)
• M7: 3,121,210 km (0.111 R)
• M8: 3,642,259 km (0.103 R)
• M9: 4,129,051 km (0.114 R)
• M10: 4,498,109 km (0.082 R)
• M11: 5,337,353 km (0.119 R)
• M12: 6,276,528 km (0.099 R)
• M13: 8,971,085 km (0.113 R)
• M14: 10,071,976 km (0.105 R)
• M15: 10,402,288 km (0.112 R)
• M16: 11,084,753 km (0.071 R)
• M17: 12,792,712 km (0.09 R)
• M18: 13,642,279 km (0.11 R)
• M19: 16,265,328 km (0.095 R)
• M20: 16,491,669 km (0.043 R)
• M21: 18,135,600 km (0.104 R)
• M22: 18,955,546 km (0.079 R)
• M23: 19,290,346 km (0.049 R)
• M24: 19,714,307 km (0.079 R)
• M25: 21,745,247 km (0.091 R)
• M26: 22,112,211 km (0.107 R)
• M27: 24,896,676 km (0.107 R)
• M28: 26,737,777 km (0.099 R)
• M29: 27,477,538 km (0.068 R)
• M30: 27,798,725 km (0.086 R)
• M31: 28,014,296 km (0.084 R)
• M32: 32,443,290 km (0.028 R)
• M33: 32,682,198 km (0.115 R)
• M34: 33,163,604 km (0.037 R)
• M35: 34,017,509 km (0.063 R)
• M36: 38,909,509 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86

Radius: 7.6

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 7.68 AU - 12.2 AU

Year: 21255 Days

Day: 20.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,678,018 km

• M1: 95,294 km (0.072 R)
• M2: 374,743 km (0.096 R)
• M3: 991,684 km (0.088 R)
• M4: 1,691,802 km (0.077 R)
• M5: 2,685,282 km (0.065 R)
• M6: 3,285,768 km (0.095 R)
• M7: 3,582,719 km (0.1 R)
• M8: 6,054,525 km (0.109 R)
• M9: 6,431,960 km (0.036 R)
• M10: 7,196,106 km (0.083 R)
• M11: 7,698,456 km (0.112 R)
• M12: 8,644,513 km (0.105 R)
• M13: 9,665,967 km (0.071 R)
• M14: 14,321,902 km (0.109 R)
• M15: 15,429,973 km (0.1 R)
• M16: 19,908,634 km (0.111 R)
• M17: 21,680,920 km (0.072 R)
• M18: 22,240,566 km (0.09 R)
• M19: 34,139,730 km (0.096 R)
• M20: 38,269,978 km (0.048 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 16,329 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit