🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

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: 43.7

Radius: 11.4

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.67 AU - 0.71 AU

Year: 376 Days

Day: 9.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 69,276,043 km

• M1: 141,819 km (0.058 R)
• M2: 541,694 km (0.047 R)
• M3: 1,165,966 km (0.093 R)
• M4: 1,985,613 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.8

Radius: 9.4

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.63 AU - 0.79 AU

Year: 392 Days

Day: 7.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,276,043 km

• M1: 116,986 km (0.109 R)
• M2: 409,300 km (0.095 R)
• M3: 780,003 km (0.105 R)
• M4: 1,082,939 km (0.113 R)
• M5: 1,396,347 km (0.106 R)
• M6: 1,838,857 km (0.099 R)
• M7: 2,336,719 km (0.102 R)
• M8: 2,707,123 km (0.094 R)
• M9: 3,007,665 km (0.042 R)
• M10: 3,342,166 km (0.111 R)
• M11: 3,701,650 km (0.049 R)
• M12: 4,372,147 km (0.095 R)
• M13: 4,968,145 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.2

Radius: 14.6

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.57 AU - 0.89 AU

Year: 409 Days

Day: 7.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,276,043 km

• M1: 181,761 km (0.072 R)
• M2: 655,987 km (0.091 R)
• M3: 1,304,045 km (0.118 R)
• M4: 1,874,910 km (0.082 R)
• M5: 2,786,111 km (0.034 R)
• M6: 3,403,950 km (0.059 R)
• M7: 4,223,447 km (0.051 R)
• M8: 4,855,797 km (0.065 R)
• M9: 6,129,025 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.4

Radius: 14.9

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.09 AU - 1.29 AU

Year: 852 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,276,043 km

• M1: 185,352 km (0.053 R)
• M2: 742,604 km (0.092 R)
• M3: 1,323,642 km (0.076 R)
• M4: 1,822,252 km (0.101 R)
• M5: 2,302,162 km (0.11 R)
• M6: 3,038,931 km (0.114 R)
• M7: 4,694,082 km (0.056 R)
• M8: 5,368,469 km (0.084 R)
• M9: 6,979,040 km (0.111 R)
• M10: 7,668,536 km (0.094 R)
• M11: 8,178,067 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.1

Radius: 12.1

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.06 AU - 1.74 AU

Year: 1087 Days

Day: 5.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,276,043 km

• M1: 150,645 km (0.053 R)
• M2: 677,828 km (0.109 R)
• M3: 1,629,270 km (0.109 R)
• M4: 2,046,948 km (0.099 R)
• M5: 2,508,158 km (0.06 R)
• M6: 3,961,800 km (0.12 R)
• M7: 5,593,764 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.7

Radius: 12.3

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.1 AU - 3.14 AU

Year: 3615 Days

Day: 8 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,276,043 km

• M1: 168,597 km (0.064 R)
• M2: 656,585 km (0.08 R)
• M3: 2,271,644 km (0.119 R)
• M4: 3,411,729 km (0.119 R)
• M5: 4,202,354 km (0.039 R)
• M6: 6,093,869 km (0.11 R)
• M7: 9,436,185 km (0.052 R)
• M8: 10,061,354 km (0.117 R)
• M9: 12,189,534 km (0.04 R)
• M10: 13,200,516 km (0.106 R)
• M11: 15,844,509 km (0.085 R)
• M12: 16,465,190 km (0.045 R)
• M13: 18,256,027 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.1

Radius: 14.3

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.1 AU - 4.26 AU

Year: 5606 Days

Day: 11.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,276,043 km

• M1: 178,321 km (0.06 R)
• M2: 701,913 km (0.096 R)
• M3: 1,276,369 km (0.082 R)
• M4: 1,757,177 km (0.096 R)
• M5: 3,461,545 km (0.046 R)
• M6: 4,216,715 km (0.084 R)
• M7: 4,853,404 km (0.071 R)
• M8: 5,676,641 km (0.08 R)
• M9: 6,353,870 km (0.097 R)
• M10: 8,839,589 km (0.11 R)
• M11: 9,353,308 km (0.062 R)
• M12: 12,123,112 km (0.091 R)
• M13: 17,911,802 km (0.077 R)
• M14: 18,666,822 km (0.086 R)
• M15: 23,978,743 km (0.118 R)
• M16: 25,837,048 km (0.114 R)
• M17: 29,934,085 km (0.112 R)
• M18: 31,886,786 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.1

Radius: 3.4

Gravity: 71.12 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5.36 AU - 6.55 AU

Year: 9521 Days

Day: 23.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,276,043 km

• M1: 42,336 km (0.066 R)
• M2: 153,039 km (0.046 R)
• M3: 369,507 km (0.095 R)
• M4: 603,328 km (0.102 R)
• M5: 990,338 km (0.111 R)
• M6: 1,453,643 km (0.098 R)
• M7: 1,626,278 km (0.098 R)
• M8: 2,398,353 km (0.072 R)
• M9: 3,877,128 km (0.063 R)
• M10: 4,209,534 km (0.103 R)
• M11: 6,968,119 km (0.112 R)
• M12: 7,884,855 km (0.12 R)
• M13: 9,020,901 km (0.073 R)
• M14: 13,883,879 km (0.088 R)
• M15: 17,671,697 km (0.077 R)
• M16: 20,327,508 km (0.109 R)
• M17: 25,356,241 km (0.091 R)
• M18: 25,833,159 km (0.056 R)
• M19: 27,002,416 km (0.112 R)
• M20: 33,266,976 km (0.038 R)
• M21: 39,661,986 km (0.092 R)
• M22: 42,674,737 km (0.071 R)
• M23: 45,836,638 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.1

Radius: 7.8

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 8.19 AU - 12.81 AU

Year: 22320 Days

Day: 24.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,276,043 km

• M1: 99,333 km (0.096 R)
• M2: 507,286 km (0.099 R)
• M3: 972,087 km (0.111 R)
• M4: 1,631,963 km (0.12 R)
• M5: 1,891,067 km (0.088 R)
• M6: 2,177,995 km (0.102 R)
• M7: 3,544,572 km (0.044 R)
• M8: 4,899,929 km (0.077 R)
• M9: 5,949,807 km (0.093 R)
• M10: 6,358,957 km (0.098 R)
• M11: 7,007,763 km (0.113 R)
• M12: 10,809,643 km (0.064 R)
• M13: 11,859,670 km (0.066 R)
• M14: 12,707,292 km (0.113 R)
• M15: 13,875,801 km (0.089 R)
• M16: 14,377,253 km (0.096 R)
• M17: 15,416,360 km (0.118 R)
• M18: 24,337,479 km (0.107 R)
• M19: 27,008,848 km (0.027 R)
• M20: 29,165,302 km (0.101 R)
• M21: 36,997,947 km (0.082 R)
• M22: 38,801,050 km (0.078 R)
• M23: 44,715,552 km (0.075 R)
• M24: 46,760,106 km (0.099 R)
• M25: 47,724,414 km (0.086 R)
• M26: 49,692,673 km (0.102 R)
• M27: 50,193,078 km (0.06 R)
• M28: 52,400,394 km (0.069 R)
• M29: 55,026,734 km (0.063 R)
• M30: 55,921,330 km (0.11 R)
• M31: 67,629,009 km (0.085 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: 519 - 19,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit