🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.2

Radius: 9.1

Gravity: 10.19 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.49 AU - 0.69 AU

Year: 302 Days

Day: 7.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,364,556 km

• M1: 113,246 km (0.09 R)
• M2: 422,764 km (0.061 R)
• M3: 755,768 km (0.063 R)
• M4: 1,078,750 km (0.1 R)
• M5: 1,390,512 km (0.083 R)
• M6: 1,909,318 km (0.081 R)
• M7: 2,407,927 km (0.068 R)
• M8: 3,022,027 km (0.108 R)
• M9: 3,310,900 km (0.06 R)
• M10: 4,147,601 km (0.097 R)
• M11: 4,870,009 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.4

Radius: 10.6

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.83 AU - 0.89 AU

Year: 532 Days

Day: 12.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,364,556 km

• M1: 131,796 km (0.069 R)
• M2: 563,386 km (0.076 R)
• M3: 1,125,425 km (0.096 R)
• M4: 1,736,981 km (0.092 R)
• M5: 2,158,697 km (0.113 R)
• M6: 2,588,342 km (0.041 R)
• M7: 3,154,122 km (0.112 R)
• M8: 3,736,057 km (0.082 R)
• M9: 4,232,273 km (0.059 R)
• M10: 5,130,609 km (0.09 R)
• M11: 6,133,363 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75

Radius: 14.5

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.73 AU - 1.05 AU

Year: 560 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,364,556 km

• M1: 184,155 km (0.037 R)
• M2: 926,310 km (0.071 R)
• M3: 1,579,903 km (0.096 R)
• M4: 2,669,424 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.9

Radius: 10.1

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.94 AU - 1.2 AU

Year: 738 Days

Day: 8.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,364,556 km

• M1: 125,662 km (0.049 R)
• M2: 443,857 km (0.109 R)
• M3: 812,167 km (0.089 R)
• M4: 1,669,213 km (0.108 R)
• M5: 2,248,755 km (0.112 R)
• M6: 2,625,742 km (0.054 R)
• M7: 3,159,806 km (0.04 R)
• M8: 3,480,843 km (0.093 R)
• M9: 4,662,068 km (0.059 R)
• M10: 5,188,353 km (0.094 R)
• M11: 5,542,003 km (0.082 R)
• M12: 6,031,637 km (0.109 R)
• M13: 6,571,386 km (0.088 R)
• M14: 6,985,921 km (0.112 R)
• M15: 8,013,509 km (0.066 R)
• M16: 8,411,140 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.7

Radius: 8.9

Gravity: 9.81 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.33 AU - 3.65 AU

Year: 3448 Days

Day: 12.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 58,364,556 km

• M1: 111,450 km (0.072 R)
• M2: 432,188 km (0.099 R)
• M3: 713,582 km (0.116 R)
• M4: 1,233,285 km (0.092 R)
• M5: 2,069,387 km (0.098 R)
• M6: 2,399,999 km (0.092 R)
• M7: 2,884,546 km (0.115 R)
• M8: 4,158,970 km (0.11 R)
• M9: 4,546,728 km (0.032 R)
• M10: 6,112,419 km (0.118 R)
• M11: 6,464,124 km (0.114 R)
• M12: 7,337,925 km (0.054 R)
• M13: 8,394,834 km (0.05 R)
• M14: 8,683,408 km (0.106 R)
• M15: 8,978,565 km (0.056 R)
• M16: 9,589,074 km (0.059 R)
• M17: 10,556,374 km (0.111 R)
• M18: 11,543,121 km (0.084 R)
• M19: 12,683,955 km (0.106 R)
• M20: 15,835,383 km (0.118 R)
• M21: 18,607,881 km (0.05 R)
• M22: 20,237,301 km (0.097 R)
• M23: 20,757,153 km (0.066 R)
• M24: 22,233,086 km (0.075 R)
• M25: 23,491,503 km (0.113 R)
• M26: 24,356,478 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.8

Radius: 8.6

Gravity: 10.04 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.56 AU - 3.74 AU

Year: 4650 Days

Day: 12.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 58,364,556 km

• M1: 107,710 km (0.048 R)
• M2: 395,537 km (0.072 R)
• M3: 686,654 km (0.061 R)
• M4: 1,090,269 km (0.112 R)
• M5: 1,380,489 km (0.092 R)
• M6: 2,151,666 km (0.112 R)
• M7: 2,719,689 km (0.118 R)
• M8: 3,048,954 km (0.108 R)
• M9: 3,722,444 km (0.116 R)
• M10: 4,591,607 km (0.095 R)
• M11: 5,279,010 km (0.097 R)
• M12: 5,618,597 km (0.093 R)
• M13: 7,366,349 km (0.119 R)
• M14: 7,863,612 km (0.092 R)
• M15: 8,535,606 km (0.047 R)
• M16: 8,846,320 km (0.061 R)
• M17: 9,656,243 km (0.068 R)
• M18: 9,993,736 km (0.112 R)
• M19: 10,872,025 km (0.119 R)
• M20: 11,237,493 km (0.084 R)
• M21: 17,876,198 km (0.03 R)
• M22: 18,321,401 km (0.046 R)
• M23: 21,792,071 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.7

Radius: 11.7

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.96 AU - 6.04 AU

Year: 8601 Days

Day: 11.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 52.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,364,556 km

• M1: 145,559 km (0.083 R)
• M2: 569,968 km (0.064 R)
• M3: 980,913 km (0.11 R)
• M4: 1,684,921 km (0.102 R)
• M5: 4,239,753 km (0.107 R)
• M6: 4,755,268 km (0.077 R)
• M7: 5,283,348 km (0.079 R)
• M8: 5,758,321 km (0.111 R)
• M9: 7,284,668 km (0.098 R)
• M10: 8,615,341 km (0.055 R)
• M11: 12,053,100 km (0.116 R)
• M12: 13,631,807 km (0.041 R)
• M13: 17,583,285 km (0.048 R)
• M14: 19,539,127 km (0.118 R)
• M15: 21,936,433 km (0.031 R)
• M16: 25,097,586 km (0.075 R)
• M17: 26,102,285 km (0.064 R)
• M18: 31,821,561 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.2

Radius: 5.5

Gravity: 12.04 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 9.07 AU - 9.21 AU

Year: 18427 Days

Day: 24 Hours

Environment

Temp: -244 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,364,556 km

• M1: 99,333 km (0.035 R)
• M2: 277,205 km (0.077 R)
• M3: 777,759 km (0.095 R)
• M4: 1,658,143 km (0.049 R)
• M5: 3,661,258 km (0.104 R)
• M6: 4,086,266 km (0.101 R)
• M7: 4,575,152 km (0.085 R)
• M8: 5,034,268 km (0.118 R)
• M9: 6,926,830 km (0.118 R)
• M10: 7,268,362 km (0.088 R)
• M11: 7,710,873 km (0.03 R)
• M12: 10,751,150 km (0.12 R)
• M13: 13,961,969 km (0.088 R)
• M14: 14,854,470 km (0.071 R)
• M15: 15,930,677 km (0.073 R)
• M16: 18,398,593 km (0.12 R)
• M17: 21,198,766 km (0.089 R)
• M18: 22,653,456 km (0.113 R)
• M19: 22,839,855 km (0.045 R)
• M20: 24,465,834 km (0.118 R)
• M21: 26,065,185 km (0.077 R)
• M22: 28,810,605 km (0.094 R)
• M23: 33,642,916 km (0.109 R)
• M24: 35,617,458 km (0.113 R)
• M25: 36,377,265 km (0.111 R)
• M26: 37,798,595 km (0.09 R)
• M27: 40,067,097 km (0.118 R)
• M28: 41,165,444 km (0.075 R)
• M29: 45,462,943 km (0.064 R)
• M30: 49,735,009 km (0.109 R)
• M31: 51,484,107 km (0.056 R)
• M32: 54,267,226 km (0.116 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 196 - 19,271 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit