🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.8

Radius: 12.4

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.66 AU - 0.72 AU

Year: 403 Days

Day: 12.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,452,304 km

• M1: 154,235 km (0.111 R)
• M2: 615,296 km (0.096 R)
• M3: 1,030,430 km (0.072 R)
• M4: 1,548,637 km (0.077 R)
• M5: 2,048,892 km (0.084 R)
• M6: 2,551,691 km (0.086 R)
• M7: 3,018,287 km (0.088 R)
• M8: 4,018,199 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.6

Radius: 14.6

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.82 AU - 1.06 AU

Year: 641 Days

Day: 7.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,452,304 km

• M1: 187,446 km (0.078 R)
• M2: 731,085 km (0.104 R)
• M3: 1,338,153 km (0.067 R)
• M4: 2,138,352 km (0.036 R)
• M5: 2,777,733 km (0.103 R)
• M6: 3,567,909 km (0.119 R)
• M7: 4,037,347 km (0.096 R)
• M8: 4,622,574 km (0.112 R)
• M9: 5,215,431 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.3

Radius: 13.7

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.26 AU - 1.96 AU

Year: 1436 Days

Day: 9.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,452,304 km

• M1: 170,841 km (0.109 R)
• M2: 612,603 km (0.071 R)
• M3: 1,169,855 km (0.112 R)
• M4: 1,696,141 km (0.044 R)
• M5: 2,320,263 km (0.094 R)
• M6: 2,921,497 km (0.103 R)
• M7: 3,352,787 km (0.103 R)
• M8: 5,035,165 km (0.105 R)
• M9: 6,169,117 km (0.089 R)
• M10: 7,385,796 km (0.049 R)
• M11: 8,051,507 km (0.118 R)
• M12: 8,546,975 km (0.097 R)
• M13: 9,471,191 km (0.092 R)
• M14: 10,023,955 km (0.076 R)
• M15: 10,529,446 km (0.118 R)
• M16: 10,981,232 km (0.115 R)
• M17: 11,665,044 km (0.032 R)
• M18: 12,569,063 km (0.059 R)
• M19: 13,519,459 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.2

Radius: 8

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.52 AU - 2.38 AU

Year: 1914 Days

Day: 8.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,452,304 km

• M1: 99,782 km (0.119 R)
• M2: 517,908 km (0.109 R)
• M3: 919,578 km (0.115 R)
• M4: 1,244,804 km (0.101 R)
• M5: 1,690,007 km (0.081 R)
• M6: 2,029,894 km (0.111 R)
• M7: 2,303,209 km (0.048 R)
• M8: 2,912,072 km (0.047 R)
• M9: 3,534,549 km (0.109 R)
• M10: 3,885,505 km (0.106 R)
• M11: 4,551,216 km (0.104 R)
• M12: 5,023,197 km (0.055 R)
• M13: 6,086,539 km (0.061 R)
• M14: 9,635,748 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.3

Radius: 9.2

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.63 AU - 5.09 AU

Year: 7531 Days

Day: 12 Hours

Environment

Temp: -224 °C

Axial Tilt: 164.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,452,304 km

• M1: 114,442 km (0.037 R)
• M2: 446,699 km (0.095 R)
• M3: 946,805 km (0.083 R)
• M4: 1,415,645 km (0.04 R)
• M5: 1,818,213 km (0.076 R)
• M6: 2,296,178 km (0.119 R)
• M7: 2,906,687 km (0.118 R)
• M8: 3,259,738 km (0.053 R)
• M9: 3,968,084 km (0.114 R)
• M10: 4,680,469 km (0.063 R)
• M11: 5,067,628 km (0.098 R)
• M12: 10,201,976 km (0.105 R)
• M13: 13,406,213 km (0.086 R)
• M14: 13,941,026 km (0.109 R)
• M15: 17,225,746 km (0.068 R)
• M16: 18,565,395 km (0.092 R)
• M17: 21,319,342 km (0.085 R)
• M18: 22,249,841 km (0.095 R)
• M19: 23,068,740 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 310.4

Radius: 5

Gravity: 12.42 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.61 AU - 6.59 AU

Year: 10590 Days

Day: 15.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,452,304 km

• M1: 62,233 km (0.069 R)
• M2: 296,204 km (0.104 R)
• M3: 463,305 km (0.102 R)
• M4: 666,010 km (0.097 R)
• M5: 891,603 km (0.071 R)
• M6: 1,510,789 km (0.074 R)
• M7: 1,919,191 km (0.066 R)
• M8: 2,851,335 km (0.066 R)
• M9: 3,184,041 km (0.101 R)
• M10: 3,901,961 km (0.111 R)
• M11: 4,233,021 km (0.067 R)
• M12: 4,418,972 km (0.114 R)
• M13: 5,187,905 km (0.106 R)
• M14: 5,525,397 km (0.039 R)
• M15: 7,171,872 km (0.061 R)
• M16: 10,793,786 km (0.069 R)
• M17: 13,273,669 km (0.056 R)
• M18: 13,672,797 km (0.071 R)
• M19: 21,428,100 km (0.047 R)
• M20: 29,702,657 km (0.055 R)
• M21: 30,978,428 km (0.101 R)
• M22: 36,669,729 km (0.076 R)
• M23: 38,251,278 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 239.2

Radius: 6.1

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.28 AU - 9.88 AU

Year: 16145 Days

Day: 19.1 Hours

Environment

Temp: -242 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 46,452,304 km

• M1: 75,996 km (0.071 R)
• M2: 307,723 km (0.077 R)
• M3: 1,029,832 km (0.114 R)
• M4: 1,898,696 km (0.064 R)
• M5: 2,600,609 km (0.119 R)
• M6: 3,462,892 km (0.112 R)
• M7: 5,140,931 km (0.106 R)
• M8: 9,649,063 km (0.101 R)
• M9: 13,961,820 km (0.085 R)
• M10: 16,956,619 km (0.088 R)
• M11: 20,919,916 km (0.06 R)
• M12: 23,290,294 km (0.112 R)
• M13: 29,987,342 km (0.102 R)
• M14: 36,899,811 km (0.12 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 388 - 19,518 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit