🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.1

Radius: 14.1

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.72 AU - 0.88 AU

Year: 485 Days

Day: 8.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,541,718 km

• M1: 175,329 km (0.084 R)
• M2: 617,091 km (0.085 R)
• M3: 1,144,723 km (0.105 R)
• M4: 1,764,357 km (0.084 R)
• M5: 2,803,015 km (0.119 R)
• M6: 3,354,583 km (0.12 R)
• M7: 4,866,568 km (0.112 R)
• M8: 5,634,005 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.3

Radius: 14.7

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.23 AU - 1.33 AU

Year: 982 Days

Day: 5.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,541,718 km

• M1: 182,958 km (0.055 R)
• M2: 770,579 km (0.11 R)
• M3: 1,339,948 km (0.113 R)
• M4: 1,814,173 km (0.029 R)
• M5: 3,036,538 km (0.063 R)
• M6: 4,205,795 km (0.064 R)
• M7: 5,114,153 km (0.099 R)
• M8: 5,910,761 km (0.113 R)
• M9: 6,859,810 km (0.102 R)
• M10: 7,778,192 km (0.075 R)
• M11: 8,805,181 km (0.104 R)
• M12: 9,529,085 km (0.103 R)
• M13: 10,292,334 km (0.09 R)
• M14: 11,195,157 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.8

Radius: 10

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.07 AU - 1.53 AU

Year: 1005 Days

Day: 6.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,541,718 km

• M1: 124,765 km (0.118 R)
• M2: 442,361 km (0.106 R)
• M3: 795,412 km (0.061 R)
• M4: 1,336,956 km (0.066 R)
• M5: 1,659,190 km (0.109 R)
• M6: 2,043,507 km (0.092 R)
• M7: 2,378,606 km (0.062 R)
• M8: 2,882,901 km (0.116 R)
• M9: 3,280,083 km (0.102 R)
• M10: 4,594,300 km (0.081 R)
• M11: 5,341,841 km (0.103 R)
• M12: 6,045,400 km (0.066 R)
• M13: 6,612,525 km (0.091 R)
• M14: 7,032,596 km (0.118 R)
• M15: 7,926,593 km (0.085 R)
• M16: 8,401,117 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.7

Radius: 11.9

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.09 AU - 2.13 AU

Year: 2079 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,541,718 km

• M1: 148,102 km (0.111 R)
• M2: 572,212 km (0.103 R)
• M3: 958,474 km (0.069 R)
• M4: 1,546,543 km (0.1 R)
• M5: 2,379,653 km (0.104 R)
• M6: 3,071,843 km (0.07 R)
• M7: 3,786,023 km (0.096 R)
• M8: 4,269,673 km (0.097 R)
• M9: 5,568,631 km (0.105 R)
• M10: 5,973,742 km (0.037 R)
• M11: 6,501,523 km (0.097 R)
• M12: 6,924,437 km (0.071 R)
• M13: 8,062,727 km (0.113 R)
• M14: 9,388,014 km (0.058 R)
• M15: 10,033,230 km (0.083 R)
• M16: 11,000,829 km (0.025 R)
• M17: 11,912,179 km (0.047 R)
• M18: 14,058,759 km (0.093 R)
• M19: 14,723,273 km (0.109 R)
• M20: 15,131,825 km (0.104 R)
• M21: 15,735,452 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.4

Radius: 13.4

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.54 AU - 3.88 AU

Year: 4847 Days

Day: 10.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 78,541,718 km

• M1: 167,250 km (0.067 R)
• M2: 983,456 km (0.094 R)
• M3: 1,669,213 km (0.085 R)
• M4: 2,212,253 km (0.058 R)
• M5: 2,675,857 km (0.117 R)
• M6: 6,057,816 km (0.094 R)
• M7: 7,454,312 km (0.072 R)
• M8: 9,356,150 km (0.113 R)
• M9: 11,872,536 km (0.066 R)
• M10: 14,198,035 km (0.046 R)
• M11: 17,153,490 km (0.113 R)
• M12: 18,623,888 km (0.063 R)
• M13: 20,304,620 km (0.118 R)
• M14: 22,838,509 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 646.9

Radius: 5.9

Gravity: 18.58 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.63 AU - 10.01 AU

Year: 16277 Days

Day: 23.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 83.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,541,718 km

• M1: 95,743 km (0.103 R)
• M2: 310,715 km (0.074 R)
• M3: 1,546,543 km (0.06 R)
• M4: 2,696,352 km (0.069 R)
• M5: 2,932,567 km (0.114 R)
• M6: 4,752,724 km (0.115 R)
• M7: 5,801,256 km (0.095 R)
• M8: 6,693,458 km (0.027 R)
• M9: 7,039,477 km (0.103 R)
• M10: 7,767,421 km (0.071 R)
• M11: 9,478,970 km (0.117 R)
• M12: 11,245,422 km (0.077 R)
• M13: 12,174,275 km (0.101 R)
• M14: 12,559,788 km (0.098 R)
• M15: 14,324,894 km (0.065 R)
• M16: 19,188,320 km (0.056 R)
• M17: 19,448,322 km (0.112 R)
• M18: 22,272,729 km (0.08 R)
• M19: 26,412,701 km (0.099 R)
• M20: 26,734,336 km (0.081 R)
• M21: 27,714,950 km (0.09 R)
• M22: 37,508,525 km (0.107 R)
• M23: 41,272,557 km (0.111 R)
• M24: 46,672,591 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846.8

Radius: 6.2

Gravity: 22.03 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 9 AU - 9.36 AU

Year: 18865 Days

Day: 15.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,541,718 km

• M1: 84,224 km (0.06 R)
• M2: 278,850 km (0.101 R)
• M3: 565,929 km (0.025 R)
• M4: 878,887 km (0.113 R)
• M5: 1,799,513 km (0.056 R)
• M6: 2,071,033 km (0.111 R)
• M7: 2,325,349 km (0.067 R)
• M8: 2,820,668 km (0.107 R)
• M9: 3,412,477 km (0.03 R)
• M10: 3,738,002 km (0.085 R)
• M11: 4,485,393 km (0.037 R)
• M12: 4,986,695 km (0.099 R)
• M13: 6,315,573 km (0.057 R)
• M14: 6,625,241 km (0.077 R)
• M15: 11,758,692 km (0.062 R)
• M16: 17,625,621 km (0.064 R)
• M17: 19,978,496 km (0.065 R)
• M18: 20,936,671 km (0.094 R)
• M19: 26,417,787 km (0.11 R)
• M20: 35,481,773 km (0.063 R)
• M21: 43,181,874 km (0.072 R)
• M22: 43,498,423 km (0.062 R)
• M23: 45,922,208 km (0.087 R)
• M24: 46,252,071 km (0.111 R)
• M25: 49,119,563 km (0.083 R)
• M26: 52,282,661 km (0.07 R)
• M27: 54,649,748 km (0.095 R)
• M28: 56,329,732 km (0.086 R)
• M29: 66,293,997 km (0.088 R)
• M30: 67,563,335 km (0.117 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: 193 - 12,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit