🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.61 AU - 0.67 AU

Year: 336 Days

Day: 43.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.2

Radius: 8.6

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.81 AU - 0.91 AU

Year: 523 Days

Day: 11.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,518,628 km

• M1: 106,962 km (0.06 R)
• M2: 420,520 km (0.097 R)
• M3: 869,912 km (0.1 R)
• M4: 1,191,248 km (0.065 R)
• M5: 1,584,690 km (0.075 R)
• M6: 2,168,421 km (0.108 R)
• M7: 2,545,258 km (0.11 R)
• M8: 3,227,574 km (0.115 R)
• M9: 4,122,917 km (0.116 R)
• M10: 4,935,683 km (0.06 R)
• M11: 5,289,332 km (0.054 R)
• M12: 5,591,071 km (0.059 R)
• M13: 5,869,024 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.9

Radius: 14.9

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.06 AU - 3.34 AU

Year: 3755 Days

Day: 15 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,518,628 km

• M1: 185,352 km (0.106 R)
• M2: 670,348 km (0.096 R)
• M3: 1,391,709 km (0.051 R)
• M4: 1,924,128 km (0.114 R)
• M5: 2,879,161 km (0.113 R)
• M6: 3,933,377 km (0.117 R)
• M7: 4,431,538 km (0.075 R)
• M8: 5,419,632 km (0.048 R)
• M9: 6,366,586 km (0.116 R)
• M10: 8,151,438 km (0.087 R)
• M11: 9,237,968 km (0.12 R)
• M12: 10,208,559 km (0.08 R)
• M13: 10,675,753 km (0.118 R)
• M14: 12,496,359 km (0.097 R)
• M15: 14,252,638 km (0.058 R)
• M16: 14,891,122 km (0.077 R)
• M17: 16,340,276 km (0.119 R)
• M18: 17,158,577 km (0.089 R)
• M19: 18,940,586 km (0.093 R)
• M20: 19,843,858 km (0.11 R)
• M21: 20,708,085 km (0.069 R)
• M22: 21,183,657 km (0.103 R)
• M23: 22,298,460 km (0.055 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 176.9

Radius: 6.5

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.98 AU - 7.08 AU

Year: 10947 Days

Day: 15.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,518,628 km

• M1: 80,783 km (0.1 R)
• M2: 592,258 km (0.101 R)
• M3: 877,840 km (0.09 R)
• M4: 2,058,915 km (0.027 R)
• M5: 3,027,861 km (0.116 R)
• M6: 5,374,004 km (0.116 R)
• M7: 6,101,648 km (0.088 R)
• M8: 7,640,262 km (0.112 R)
• M9: 8,014,407 km (0.088 R)
• M10: 8,479,507 km (0.071 R)
• M11: 8,718,714 km (0.061 R)
• M12: 10,566,995 km (0.071 R)
• M13: 10,890,875 km (0.111 R)
• M14: 11,364,950 km (0.104 R)
• M15: 12,101,720 km (0.116 R)
• M16: 12,405,104 km (0.101 R)
• M17: 14,446,367 km (0.042 R)
• M18: 15,605,900 km (0.055 R)
• M19: 17,652,698 km (0.118 R)
• M20: 18,174,645 km (0.117 R)
• M21: 20,723,045 km (0.059 R)
• M22: 21,157,627 km (0.073 R)
• M23: 21,970,093 km (0.081 R)
• M24: 22,573,870 km (0.09 R)
• M25: 23,422,090 km (0.059 R)
• M26: 29,780,149 km (0.074 R)
• M27: 31,365,886 km (0.071 R)
• M28: 32,034,888 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 378.7

Radius: 3.8

Gravity: 26.23 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.37 AU - 7.67 AU

Year: 12202 Days

Day: 18.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,518,628 km

• M1: 47,273 km (0.096 R)
• M2: 189,840 km (0.067 R)
• M3: 326,722 km (0.039 R)
• M4: 835,953 km (0.079 R)
• M5: 980,464 km (0.087 R)
• M6: 1,258,866 km (0.092 R)
• M7: 2,588,193 km (0.07 R)
• M8: 2,855,075 km (0.087 R)
• M9: 3,419,508 km (0.091 R)
• M10: 4,501,101 km (0.09 R)
• M11: 4,978,916 km (0.104 R)
• M12: 5,860,796 km (0.113 R)
• M13: 6,320,510 km (0.105 R)
• M14: 6,615,068 km (0.092 R)
• M15: 6,765,713 km (0.065 R)
• M16: 10,485,165 km (0.112 R)
• M17: 12,313,850 km (0.048 R)
• M18: 12,831,159 km (0.059 R)
• M19: 14,597,162 km (0.112 R)
• M20: 15,504,922 km (0.119 R)
• M21: 17,719,868 km (0.098 R)
• M22: 18,527,397 km (0.081 R)
• M23: 20,058,232 km (0.078 R)
• M24: 20,374,183 km (0.107 R)
• M25: 22,509,244 km (0.091 R)
• M26: 27,121,645 km (0.115 R)
• M27: 37,199,455 km (0.119 R)
• M28: 37,676,224 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 697

Radius: 6.7

Gravity: 15.53 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.6 AU - 9.62 AU

Year: 16573 Days

Day: 15.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,518,628 km

• M1: 99,333 km (0.108 R)
• M2: 510,278 km (0.032 R)
• M3: 744,249 km (0.103 R)
• M4: 1,310,029 km (0.08 R)
• M5: 1,628,074 km (0.104 R)
• M6: 3,961,651 km (0.077 R)
• M7: 6,025,802 km (0.112 R)
• M8: 7,129,386 km (0.113 R)
• M9: 8,563,431 km (0.079 R)
• M10: 10,066,142 km (0.095 R)
• M11: 14,145,526 km (0.06 R)
• M12: 17,268,531 km (0.099 R)
• M13: 24,117,271 km (0.11 R)
• M14: 25,887,912 km (0.117 R)
• M15: 26,532,978 km (0.081 R)
• M16: 33,205,491 km (0.072 R)
• M17: 35,524,558 km (0.118 R)
• M18: 35,788,598 km (0.068 R)
• M19: 36,187,276 km (0.098 R)
• M20: 44,489,659 km (0.118 R)
• M21: 53,976,258 km (0.062 R)
• M22: 57,900,659 km (0.105 R)
• M23: 60,306,791 km (0.074 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 12,270 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit