🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.7

Radius: 13.8

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.5 AU - 0.56 AU

Year: 271 Days

Day: 11.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,649,378 km

• M1: 171,589 km (0.087 R)
• M2: 619,036 km (0.096 R)
• M3: 1,084,585 km (0.081 R)
• M4: 1,602,343 km (0.066 R)
• M5: 2,069,537 km (0.111 R)
• M6: 2,689,022 km (0.119 R)
• M7: 3,188,679 km (0.08 R)
• M8: 3,816,840 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.7

Radius: 13.5

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.56 AU - 0.6 AU

Year: 310 Days

Day: 11.1 Hours

Environment

Temp: -144 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,649,378 km

• M1: 169,644 km (0.045 R)
• M2: 612,304 km (0.104 R)
• M3: 1,042,697 km (0.079 R)
• M4: 1,494,782 km (0.041 R)
• M5: 2,043,058 km (0.066 R)
• M6: 2,598,365 km (0.104 R)
• M7: 3,150,681 km (0.069 R)
• M8: 3,576,735 km (0.085 R)
• M9: 4,126,956 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 115.3

Radius: 8.1

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.55 AU - 0.77 AU

Year: 377 Days

Day: 12.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,649,378 km

• M1: 100,829 km (0.067 R)
• M2: 519,105 km (0.089 R)
• M3: 1,337,704 km (0.102 R)
• M4: 1,993,541 km (0.107 R)
• M5: 2,382,944 km (0.066 R)
• M6: 2,635,765 km (0.07 R)
• M7: 2,957,849 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912

Radius: 14

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.69 AU - 0.77 AU

Year: 438 Days

Day: 10.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,649,378 km

• M1: 174,132 km (0.104 R)
• M2: 653,743 km (0.091 R)
• M3: 1,207,255 km (0.116 R)
• M4: 1,709,904 km (0.101 R)
• M5: 2,207,616 km (0.091 R)
• M6: 2,975,801 km (0.074 R)
• M7: 3,553,398 km (0.106 R)
• M8: 4,333,551 km (0.113 R)
• M9: 5,015,418 km (0.054 R)
• M10: 5,732,890 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.5

Radius: 8.4

Gravity: 13.61 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.64 AU - 0.88 AU

Year: 466 Days

Day: 13 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,649,378 km

• M1: 104,719 km (0.091 R)
• M2: 380,427 km (0.075 R)
• M3: 787,782 km (0.111 R)
• M4: 1,049,728 km (0.105 R)
• M5: 1,364,632 km (0.119 R)
• M6: 1,626,727 km (0.069 R)
• M7: 2,491,104 km (0.086 R)
• M8: 2,990,162 km (0.113 R)
• M9: 3,686,092 km (0.04 R)
• M10: 4,072,503 km (0.101 R)
• M11: 4,409,846 km (0.101 R)
• M12: 4,686,901 km (0.12 R)
• M13: 5,378,941 km (0.102 R)
• M14: 6,006,205 km (0.097 R)
• M15: 6,347,438 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.1

Radius: 10.4

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.09 AU - 1.75 AU

Year: 1189 Days

Day: 9.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,649,378 km

• M1: 129,402 km (0.1 R)
• M2: 997,668 km (0.064 R)
• M3: 1,525,449 km (0.091 R)
• M4: 2,274,935 km (0.07 R)
• M5: 2,655,961 km (0.085 R)
• M6: 3,119,265 km (0.085 R)
• M7: 4,048,418 km (0.116 R)
• M8: 5,815,468 km (0.083 R)
• M9: 6,468,462 km (0.069 R)
• M10: 7,076,428 km (0.054 R)
• M11: 7,673,024 km (0.091 R)
• M12: 8,696,872 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 263.4

Radius: 5.4

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.11 AU - 6.15 AU

Year: 9390 Days

Day: 19.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,649,378 km

• M1: 83,027 km (0.084 R)
• M2: 299,645 km (0.082 R)
• M3: 511,176 km (0.12 R)
• M4: 716,424 km (0.094 R)
• M5: 995,125 km (0.092 R)
• M6: 1,522,009 km (0.107 R)
• M7: 2,015,532 km (0.11 R)
• M8: 3,026,515 km (0.069 R)
• M9: 3,896,277 km (0.066 R)
• M10: 4,440,065 km (0.117 R)
• M11: 10,325,843 km (0.093 R)
• M12: 11,606,850 km (0.097 R)
• M13: 12,517,452 km (0.081 R)
• M14: 16,202,945 km (0.061 R)
• M15: 16,638,574 km (0.103 R)
• M16: 17,663,320 km (0.044 R)
• M17: 21,731,035 km (0.102 R)
• M18: 25,872,503 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 207.8

Radius: 6.8

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.15 AU - 6.43 AU

Year: 9793 Days

Day: 16.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,649,378 km

• M1: 85,121 km (0.111 R)
• M2: 501,003 km (0.058 R)
• M3: 931,396 km (0.077 R)
• M4: 2,499,182 km (0.074 R)
• M5: 4,091,951 km (0.098 R)
• M6: 4,538,650 km (0.046 R)
• M7: 5,017,363 km (0.12 R)
• M8: 5,354,856 km (0.099 R)
• M9: 6,995,496 km (0.052 R)
• M10: 12,256,105 km (0.114 R)
• M11: 15,941,000 km (0.088 R)
• M12: 19,883,502 km (0.051 R)
• M13: 20,232,962 km (0.068 R)
• M14: 26,817,064 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 946.3

Radius: 3.8

Gravity: 65.53 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.32 AU - 9.66 AU

Year: 15876 Days

Day: 22.5 Hours

Environment

Temp: -242 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 72,649,378 km

• M1: 47,273 km (0.117 R)
• M2: 250,726 km (0.103 R)
• M3: 410,347 km (0.104 R)
• M4: 537,356 km (0.111 R)
• M5: 681,867 km (0.057 R)
• M6: 1,168,060 km (0.084 R)
• M7: 1,607,130 km (0.107 R)
• M8: 2,231,103 km (0.069 R)
• M9: 2,426,328 km (0.099 R)
• M10: 3,577,633 km (0.116 R)
• M11: 3,906,599 km (0.111 R)
• M12: 7,206,578 km (0.113 R)
• M13: 7,926,892 km (0.115 R)
• M14: 8,126,755 km (0.038 R)
• M15: 8,853,052 km (0.089 R)
• M16: 9,286,886 km (0.117 R)
• M17: 9,621,387 km (0.1 R)
• M18: 10,080,054 km (0.05 R)
• M19: 10,613,221 km (0.078 R)
• M20: 10,734,096 km (0.074 R)
• M21: 11,607,000 km (0.114 R)
• M22: 12,593,598 km (0.105 R)
• M23: 15,886,695 km (0.063 R)
• M24: 18,990,403 km (0.102 R)
• M25: 19,258,482 km (0.102 R)
• M26: 19,619,761 km (0.114 R)
• M27: 20,263,032 km (0.115 R)
• M28: 24,210,171 km (0.059 R)
• M29: 25,813,412 km (0.116 R)
• M30: 26,142,378 km (0.076 R)
• M31: 27,714,352 km (0.092 R)
• M32: 30,188,850 km (0.115 R)
• M33: 30,431,947 km (0.069 R)
• M34: 35,033,577 km (0.026 R)
• M35: 41,260,888 km (0.091 R)
• M36: 45,425,543 km (0.114 R)
• M37: 45,744,635 km (0.101 R)
• M38: 50,371,697 km (0.082 R)
• M39: 59,965,259 km (0.086 R)
• M40: 62,098,076 km (0.109 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: 421 - 12,502 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit