🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.1

Radius: 14.9

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.51 AU - 0.71 AU

Year: 329 Days

Day: 10.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,507,992 km

• M1: 186,848 km (0.097 R)
• M2: 732,581 km (0.066 R)
• M3: 1,494,483 km (0.051 R)
• M4: 2,351,080 km (0.112 R)
• M5: 2,882,601 km (0.105 R)
• M6: 3,666,943 km (0.115 R)
• M7: 4,270,720 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.2

Radius: 8.9

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.87 AU - 1.01 AU

Year: 629 Days

Day: 6.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,507,992 km

• M1: 110,852 km (0.112 R)
• M2: 427,401 km (0.086 R)
• M3: 785,239 km (0.108 R)
• M4: 1,064,090 km (0.07 R)
• M5: 1,466,508 km (0.096 R)
• M6: 2,030,043 km (0.086 R)
• M7: 2,328,192 km (0.119 R)
• M8: 2,909,978 km (0.098 R)
• M9: 3,291,303 km (0.03 R)
• M10: 3,800,833 km (0.085 R)
• M11: 4,468,488 km (0.092 R)
• M12: 4,814,508 km (0.091 R)
• M13: 5,850,025 km (0.114 R)
• M14: 6,245,412 km (0.093 R)
• M15: 7,027,210 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442

Radius: 10.9

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.72 AU - 2.68 AU

Year: 2252 Days

Day: 11.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,507,992 km

• M1: 135,685 km (0.077 R)
• M2: 533,765 km (0.091 R)
• M3: 1,058,106 km (0.082 R)
• M4: 1,502,112 km (0.091 R)
• M5: 1,978,881 km (0.098 R)
• M6: 2,719,689 km (0.09 R)
• M7: 3,722,743 km (0.119 R)
• M8: 4,445,600 km (0.098 R)
• M9: 4,893,197 km (0.116 R)
• M10: 5,303,843 km (0.098 R)
• M11: 5,667,515 km (0.101 R)
• M12: 6,023,558 km (0.059 R)
• M13: 7,800,781 km (0.1 R)
• M14: 9,502,008 km (0.102 R)
• M15: 10,994,696 km (0.066 R)
• M16: 11,970,074 km (0.116 R)
• M17: 14,308,737 km (0.101 R)
• M18: 14,971,605 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.7

Radius: 8.8

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 3.01 AU - 4.43 AU

Year: 4953 Days

Day: 7.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 77,507,992 km

• M1: 109,805 km (0.086 R)
• M2: 685,158 km (0.112 R)
• M3: 1,026,690 km (0.072 R)
• M4: 1,566,140 km (0.113 R)
• M5: 3,433,271 km (0.105 R)
• M6: 4,875,694 km (0.073 R)
• M7: 5,523,602 km (0.038 R)
• M8: 5,883,684 km (0.106 R)
• M9: 6,164,031 km (0.109 R)
• M10: 6,617,911 km (0.092 R)
• M11: 7,024,667 km (0.059 R)
• M12: 7,629,192 km (0.066 R)
• M13: 8,740,256 km (0.115 R)
• M14: 10,718,388 km (0.118 R)
• M15: 11,043,614 km (0.118 R)
• M16: 13,454,234 km (0.098 R)
• M17: 15,894,026 km (0.099 R)
• M18: 17,313,261 km (0.047 R)
• M19: 17,955,933 km (0.04 R)
• M20: 20,758,201 km (0.1 R)
• M21: 21,704,257 km (0.056 R)
• M22: 22,150,508 km (0.113 R)
• M23: 23,604,300 km (0.094 R)
• M24: 27,127,031 km (0.09 R)
• M25: 30,241,658 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.5

Radius: 12.1

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.35 AU - 5.05 AU

Year: 5941 Days

Day: 7.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 54.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,507,992 km

• M1: 150,495 km (0.12 R)
• M2: 540,647 km (0.112 R)
• M3: 2,396,109 km (0.058 R)
• M4: 2,776,686 km (0.111 R)
• M5: 3,723,341 km (0.095 R)
• M6: 4,679,122 km (0.112 R)
• M7: 6,977,693 km (0.067 R)
• M8: 9,127,265 km (0.097 R)
• M9: 10,067,338 km (0.095 R)
• M10: 12,747,085 km (0.079 R)
• M11: 13,720,518 km (0.073 R)
• M12: 15,815,636 km (0.108 R)
• M13: 17,286,782 km (0.099 R)
• M14: 17,757,267 km (0.111 R)
• M15: 18,540,263 km (0.113 R)
• M16: 21,972,038 km (0.101 R)
• M17: 22,454,940 km (0.074 R)
• M18: 24,164,394 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78.5

Radius: 5.5

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.95 AU - 7.13 AU

Year: 11545 Days

Day: 16.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,507,992 km

• M1: 68,965 km (0.106 R)
• M2: 717,771 km (0.062 R)
• M3: 2,085,993 km (0.113 R)
• M4: 2,621,104 km (0.066 R)
• M5: 3,130,335 km (0.098 R)
• M6: 3,620,119 km (0.091 R)
• M7: 5,925,871 km (0.102 R)
• M8: 6,158,496 km (0.094 R)
• M9: 10,256,280 km (0.072 R)
• M10: 11,374,525 km (0.073 R)
• M11: 14,003,707 km (0.08 R)
• M12: 17,901,330 km (0.103 R)
• M13: 19,452,062 km (0.11 R)
• M14: 19,837,126 km (0.119 R)
• M15: 22,818,163 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167.4

Radius: 6.4

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 6.42 AU - 8.36 AU

Year: 13867 Days

Day: 20.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,507,992 km

• M1: 91,255 km (0.086 R)
• M2: 409,449 km (0.085 R)
• M3: 1,452,745 km (0.111 R)
• M4: 1,660,237 km (0.109 R)
• M5: 2,795,386 km (0.044 R)
• M6: 3,423,248 km (0.07 R)
• M7: 4,644,715 km (0.048 R)
• M8: 5,678,586 km (0.108 R)
• M9: 6,099,255 km (0.073 R)
• M10: 9,158,232 km (0.118 R)
• M11: 9,377,842 km (0.044 R)
• M12: 10,819,068 km (0.065 R)
• M13: 11,566,907 km (0.081 R)
• M14: 13,445,109 km (0.068 R)
• M15: 18,274,876 km (0.03 R)
• M16: 18,764,061 km (0.097 R)
• M17: 19,768,611 km (0.103 R)
• M18: 22,997,082 km (0.044 R)
• M19: 23,731,907 km (0.104 R)
• M20: 28,009,509 km (0.083 R)
• M21: 33,082,223 km (0.066 R)
• M22: 36,821,122 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 979.4

Radius: 5.1

Gravity: 37.65 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.71 AU - 9.35 AU

Year: 17196 Days

Day: 16.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 77,507,992 km

• M1: 63,429 km (0.089 R)
• M2: 233,522 km (0.115 R)
• M3: 392,694 km (0.113 R)
• M4: 673,789 km (0.077 R)
• M5: 1,018,014 km (0.117 R)
• M6: 3,528,266 km (0.119 R)
• M7: 4,246,186 km (0.082 R)
• M8: 5,246,248 km (0.11 R)
• M9: 5,719,575 km (0.104 R)
• M10: 8,789,772 km (0.043 R)
• M11: 9,628,269 km (0.113 R)
• M12: 10,952,808 km (0.089 R)
• M13: 13,089,365 km (0.115 R)
• M14: 13,446,455 km (0.092 R)
• M15: 14,180,382 km (0.103 R)
• M16: 14,557,070 km (0.109 R)
• M17: 22,941,133 km (0.102 R)
• M18: 23,355,818 km (0.066 R)
• M19: 27,084,844 km (0.099 R)
• M20: 27,431,762 km (0.12 R)
• M21: 29,575,798 km (0.094 R)
• M22: 32,997,401 km (0.099 R)
• M23: 34,059,695 km (0.119 R)
• M24: 36,814,839 km (0.115 R)
• M25: 37,669,492 km (0.088 R)
• M26: 49,666,942 km (0.072 R)
• M27: 52,480,728 km (0.091 R)
• M28: 55,584,734 km (0.096 R)
• M29: 59,002,447 km (0.115 R)
• M30: 66,882,665 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 13,706 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit