🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898

Radius: 12.6

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.46 AU - 0.58 AU

Year: 254 Days

Day: 8.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,455,597 km

• M1: 156,629 km (0.052 R)
• M2: 605,722 km (0.072 R)
• M3: 1,020,257 km (0.117 R)
• M4: 1,503,758 km (0.11 R)
• M5: 1,917,246 km (0.085 R)
• M6: 2,316,373 km (0.105 R)
• M7: 3,011,405 km (0.045 R)
• M8: 3,414,123 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.7

Radius: 8.6

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.41 AU - 0.67 AU

Year: 269 Days

Day: 14.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,455,597 km

• M1: 110,553 km (0.096 R)
• M2: 414,984 km (0.114 R)
• M3: 738,714 km (0.096 R)
• M4: 1,094,757 km (0.08 R)
• M5: 1,511,238 km (0.036 R)
• M6: 1,790,238 km (0.03 R)
• M7: 2,239,331 km (0.069 R)
• M8: 2,562,312 km (0.03 R)
• M9: 2,962,786 km (0.086 R)
• M10: 3,582,869 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.7

Radius: 10.2

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.54 AU - 0.56 AU

Year: 277 Days

Day: 12.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,455,597 km

• M1: 126,859 km (0.101 R)
• M2: 482,603 km (0.12 R)
• M3: 1,227,002 km (0.061 R)
• M4: 1,803,851 km (0.062 R)
• M5: 2,177,846 km (0.08 R)
• M6: 2,553,785 km (0.103 R)
• M7: 2,872,878 km (0.043 R)
• M8: 3,519,888 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.5

Radius: 11.6

Gravity: 7.4 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.65 AU - 0.67 AU

Year: 364 Days

Day: 9.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,455,597 km

• M1: 144,212 km (0.078 R)
• M2: 516,412 km (0.114 R)
• M3: 911,201 km (0.101 R)
• M4: 1,490,444 km (0.035 R)
• M5: 2,147,477 km (0.106 R)
• M6: 3,033,246 km (0.063 R)
• M7: 3,397,816 km (0.102 R)
• M8: 3,947,439 km (0.117 R)
• M9: 4,555,554 km (0.095 R)
• M10: 5,435,489 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.4

Radius: 13.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.83 AU - 1.35 AU

Year: 772 Days

Day: 9.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 178.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 25,455,597 km

• M1: 162,912 km (0.075 R)
• M2: 671,246 km (0.114 R)
• M3: 1,134,101 km (0.061 R)
• M4: 1,596,658 km (0.064 R)
• M5: 2,304,406 km (0.043 R)
• M6: 2,950,519 km (0.08 R)
• M7: 3,873,238 km (0.11 R)
• M8: 5,128,365 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.3

Radius: 10.6

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.31 AU - 2.43 AU

Year: 2475 Days

Day: 6.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,455,597 km

• M1: 134,040 km (0.088 R)
• M2: 819,497 km (0.065 R)
• M3: 1,187,508 km (0.103 R)
• M4: 1,519,765 km (0.1 R)
• M5: 2,042,310 km (0.063 R)
• M6: 3,331,993 km (0.117 R)
• M7: 4,439,766 km (0.096 R)
• M8: 5,397,192 km (0.047 R)
• M9: 5,851,072 km (0.065 R)
• M10: 6,434,354 km (0.115 R)
• M11: 6,835,426 km (0.078 R)
• M12: 7,281,527 km (0.104 R)
• M13: 9,196,978 km (0.11 R)
• M14: 11,504,675 km (0.085 R)
• M15: 12,380,121 km (0.117 R)
• M16: 14,947,370 km (0.082 R)
• M17: 16,281,783 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.8

Radius: 12.3

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 3.28 AU - 3.64 AU

Year: 4365 Days

Day: 6.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,455,597 km

• M1: 153,039 km (0.112 R)
• M2: 568,622 km (0.059 R)
• M3: 1,575,266 km (0.12 R)
• M4: 2,593,728 km (0.087 R)
• M5: 3,272,902 km (0.077 R)
• M6: 4,087,163 km (0.09 R)
• M7: 4,875,993 km (0.065 R)
• M8: 5,813,373 km (0.118 R)
• M9: 7,092,585 km (0.111 R)
• M10: 7,677,812 km (0.102 R)
• M11: 8,326,917 km (0.079 R)
• M12: 8,812,661 km (0.114 R)
• M13: 9,317,404 km (0.095 R)
• M14: 10,201,378 km (0.106 R)
• M15: 11,295,986 km (0.1 R)
• M16: 12,136,426 km (0.111 R)
• M17: 12,592,999 km (0.112 R)
• M18: 14,031,981 km (0.105 R)
• M19: 17,027,978 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.2

Radius: 9.9

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.28 AU - 4.54 AU

Year: 5244 Days

Day: 8.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,455,597 km

• M1: 123,418 km (0.093 R)
• M2: 703,708 km (0.036 R)
• M3: 1,857,108 km (0.117 R)
• M4: 2,166,776 km (0.044 R)
• M5: 2,511,299 km (0.089 R)
• M6: 3,439,554 km (0.086 R)
• M7: 4,985,947 km (0.065 R)
• M8: 5,959,680 km (0.094 R)
• M9: 6,475,344 km (0.118 R)
• M10: 6,812,687 km (0.089 R)
• M11: 11,881,362 km (0.111 R)
• M12: 13,663,222 km (0.049 R)
• M13: 16,163,452 km (0.087 R)
• M14: 20,716,014 km (0.081 R)
• M15: 24,808,114 km (0.069 R)
• M16: 25,804,286 km (0.055 R)
• M17: 27,260,771 km (0.079 R)
• M18: 29,963,556 km (0.098 R)
• M19: 30,997,876 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.8

Radius: 5.6

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 5.23 AU - 7.15 AU

Year: 10445 Days

Day: 19.5 Hours

Environment

Temp: -238 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,455,597 km

• M1: 69,713 km (0.101 R)
• M2: 262,245 km (0.08 R)
• M3: 985,102 km (0.067 R)
• M4: 1,177,784 km (0.086 R)
• M5: 2,968,022 km (0.108 R)
• M6: 4,931,494 km (0.04 R)
• M7: 7,079,420 km (0.109 R)
• M8: 12,765,785 km (0.117 R)
• M9: 14,103,339 km (0.081 R)
• M10: 16,652,038 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.6

Radius: 3.7

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 8.32 AU - 12.56 AU

Year: 22879 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,455,597 km

• M1: 48,470 km (0.038 R)
• M2: 447,896 km (0.105 R)
• M3: 863,180 km (0.032 R)
• M4: 1,202,168 km (0.117 R)
• M5: 3,241,337 km (0.035 R)
• M6: 4,159,270 km (0.108 R)
• M7: 8,502,694 km (0.106 R)
• M8: 8,686,999 km (0.114 R)
• M9: 10,426,224 km (0.094 R)
• M10: 11,025,064 km (0.098 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 15,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit