🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.5

Radius: 10.2

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.55 AU - 0.89 AU

Year: 394 Days

Day: 5.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,755,909 km

• M1: 126,859 km (0.091 R)
• M2: 483,351 km (0.097 R)
• M3: 983,905 km (0.12 R)
• M4: 1,890,767 km (0.104 R)
• M5: 2,283,312 km (0.066 R)
• M6: 2,607,042 km (0.101 R)
• M7: 3,095,928 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498

Radius: 14.3

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.54 AU - 2.56 AU

Year: 1895 Days

Day: 12.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,755,909 km

• M1: 181,313 km (0.119 R)
• M2: 942,317 km (0.083 R)
• M3: 1,535,772 km (0.1 R)
• M4: 2,018,823 km (0.101 R)
• M5: 2,751,105 km (0.045 R)
• M6: 3,412,477 km (0.109 R)
• M7: 4,554,358 km (0.094 R)
• M8: 5,730,945 km (0.091 R)
• M9: 6,816,128 km (0.027 R)
• M10: 7,640,562 km (0.113 R)
• M11: 10,586,443 km (0.099 R)
• M12: 11,255,893 km (0.117 R)
• M13: 13,233,428 km (0.051 R)
• M14: 13,803,246 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.5

Radius: 8.6

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.77 AU - 2.81 AU

Year: 2238 Days

Day: 5.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,755,909 km

• M1: 107,112 km (0.106 R)
• M2: 406,308 km (0.118 R)
• M3: 923,318 km (0.056 R)
• M4: 1,465,311 km (0.088 R)
• M5: 1,740,122 km (0.119 R)
• M6: 2,120,849 km (0.094 R)
• M7: 2,752,750 km (0.078 R)
• M8: 3,128,690 km (0.111 R)
• M9: 3,730,373 km (0.075 R)
• M10: 4,040,190 km (0.056 R)
• M11: 4,486,889 km (0.119 R)
• M12: 6,002,764 km (0.081 R)
• M13: 6,876,715 km (0.065 R)
• M14: 7,486,027 km (0.119 R)
• M15: 8,559,841 km (0.103 R)
• M16: 10,501,172 km (0.06 R)
• M17: 10,899,850 km (0.049 R)
• M18: 12,516,405 km (0.032 R)
• M19: 13,213,980 km (0.106 R)
• M20: 13,807,734 km (0.086 R)
• M21: 15,048,499 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.5

Radius: 9.9

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.08 AU - 3.52 AU

Year: 3871 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,755,909 km

• M1: 123,119 km (0.117 R)
• M2: 574,905 km (0.057 R)
• M3: 1,019,360 km (0.092 R)
• M4: 1,597,556 km (0.083 R)
• M5: 2,007,454 km (0.07 R)
• M6: 2,517,732 km (0.099 R)
• M7: 3,677,564 km (0.06 R)
• M8: 4,699,019 km (0.092 R)
• M9: 5,340,046 km (0.074 R)
• M10: 6,497,634 km (0.057 R)
• M11: 7,949,032 km (0.115 R)
• M12: 8,678,920 km (0.111 R)
• M13: 11,308,552 km (0.088 R)
• M14: 12,550,214 km (0.119 R)
• M15: 13,156,834 km (0.07 R)
• M16: 18,974,695 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.6

Radius: 12.7

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.17 AU - 4.49 AU

Year: 4840 Days

Day: 9.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,755,909 km

• M1: 157,975 km (0.105 R)
• M2: 942,467 km (0.038 R)
• M3: 1,875,359 km (0.083 R)
• M4: 2,863,154 km (0.093 R)
• M5: 4,107,210 km (0.114 R)
• M6: 5,525,996 km (0.071 R)
• M7: 6,818,372 km (0.065 R)
• M8: 8,165,949 km (0.116 R)
• M9: 8,688,046 km (0.077 R)
• M10: 9,343,883 km (0.089 R)
• M11: 9,993,437 km (0.084 R)
• M12: 11,597,725 km (0.088 R)
• M13: 15,891,931 km (0.092 R)
• M14: 18,245,555 km (0.067 R)
• M15: 18,778,722 km (0.07 R)
• M16: 20,063,169 km (0.114 R)
• M17: 21,865,823 km (0.095 R)
• M18: 22,670,660 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.3

Radius: 8.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.57 AU - 4.85 AU

Year: 5577 Days

Day: 7.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,755,909 km

• M1: 108,159 km (0.071 R)
• M2: 422,315 km (0.103 R)
• M3: 814,112 km (0.104 R)
• M4: 1,180,926 km (0.087 R)
• M5: 1,572,872 km (0.108 R)
• M6: 3,862,318 km (0.067 R)
• M7: 5,335,109 km (0.08 R)
• M8: 7,447,880 km (0.098 R)
• M9: 9,991,043 km (0.067 R)
• M10: 10,940,691 km (0.047 R)
• M11: 11,742,834 km (0.118 R)
• M12: 12,327,313 km (0.104 R)
• M13: 15,944,291 km (0.096 R)
• M14: 18,103,437 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341

Radius: 12.6

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.71 AU - 5.73 AU

Year: 6621 Days

Day: 12 Hours

Environment

Temp: -207 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,755,909 km

• M1: 197,020 km (0.072 R)
• M2: 863,928 km (0.065 R)
• M3: 1,397,843 km (0.119 R)
• M4: 2,685,880 km (0.104 R)
• M5: 3,512,857 km (0.11 R)
• M6: 7,715,959 km (0.11 R)
• M7: 8,185,397 km (0.12 R)
• M8: 9,261,305 km (0.101 R)
• M9: 10,086,038 km (0.03 R)
• M10: 11,787,415 km (0.048 R)
• M11: 12,509,075 km (0.119 R)
• M12: 13,209,043 km (0.086 R)
• M13: 15,129,281 km (0.093 R)
• M14: 20,802,631 km (0.082 R)
• M15: 24,224,982 km (0.105 R)
• M16: 26,352,114 km (0.096 R)
• M17: 26,923,278 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 70.5

Radius: 4.5

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 10.4 AU - 11.04 AU

Year: 22662 Days

Day: 17.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,755,909 km

• M1: 91,255 km (0.084 R)
• M2: 281,693 km (0.099 R)
• M3: 3,822,824 km (0.111 R)
• M4: 4,608,961 km (0.099 R)
• M5: 5,497,423 km (0.084 R)
• M6: 6,815,978 km (0.09 R)
• M7: 12,991,677 km (0.113 R)
• M8: 22,104,133 km (0.103 R)
• M9: 23,655,163 km (0.034 R)
• M10: 31,084,194 km (0.079 R)
• M11: 32,096,971 km (0.029 R)
• M12: 33,763,043 km (0.112 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: 421 - 10,903 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit