🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.57

Radius: 0.8

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.63 AU - 0.67 AU

Year: 344 Days

Day: 46.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.9

Radius: 14.6

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.71 AU - 0.83 AU

Year: 443 Days

Day: 12.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 81,616,731 km

• M1: 182,210 km (0.07 R)
• M2: 752,178 km (0.078 R)
• M3: 1,220,270 km (0.07 R)
• M4: 1,817,614 km (0.082 R)
• M5: 2,831,738 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.3

Radius: 13.6

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 2.67 AU - 2.87 AU

Year: 3024 Days

Day: 13.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,616,731 km

• M1: 173,384 km (0.106 R)
• M2: 695,181 km (0.094 R)
• M3: 1,546,094 km (0.097 R)
• M4: 2,040,515 km (0.111 R)
• M5: 2,720,288 km (0.093 R)
• M6: 3,605,458 km (0.059 R)
• M7: 4,422,861 km (0.045 R)
• M8: 6,632,571 km (0.067 R)
• M9: 7,213,310 km (0.113 R)
• M10: 8,131,093 km (0.065 R)
• M11: 9,015,067 km (0.099 R)
• M12: 9,922,827 km (0.064 R)
• M13: 12,009,567 km (0.065 R)
• M14: 13,538,009 km (0.096 R)
• M15: 14,626,782 km (0.113 R)
• M16: 15,880,412 km (0.062 R)
• M17: 17,489,188 km (0.069 R)
• M18: 19,021,668 km (0.106 R)
• M19: 19,820,820 km (0.063 R)
• M20: 22,285,445 km (0.114 R)
• M21: 23,104,494 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.9

Radius: 9

Gravity: 10.38 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.34 AU - 4.72 AU

Year: 5307 Days

Day: 13.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,616,731 km

• M1: 111,899 km (0.088 R)
• M2: 575,503 km (0.059 R)
• M3: 1,838,109 km (0.112 R)
• M4: 2,178,444 km (0.094 R)
• M5: 4,228,384 km (0.118 R)
• M6: 4,638,880 km (0.105 R)
• M7: 6,224,169 km (0.111 R)
• M8: 8,657,079 km (0.11 R)
• M9: 9,109,613 km (0.091 R)
• M10: 9,621,088 km (0.116 R)
• M11: 11,368,391 km (0.109 R)
• M12: 15,360,410 km (0.104 R)
• M13: 18,735,488 km (0.068 R)
• M14: 23,196,945 km (0.045 R)
• M15: 24,474,810 km (0.07 R)
• M16: 29,408,847 km (0.086 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 684.6

Radius: 3.4

Gravity: 59.22 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.73 AU - 6.13 AU

Year: 9473 Days

Day: 22.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,616,731 km

• M1: 53,855 km (0.094 R)
• M2: 257,308 km (0.108 R)
• M3: 390,002 km (0.104 R)
• M4: 547,528 km (0.034 R)
• M5: 981,960 km (0.072 R)
• M6: 1,264,401 km (0.081 R)
• M7: 2,760,829 km (0.111 R)
• M8: 2,888,585 km (0.093 R)
• M9: 3,110,140 km (0.056 R)
• M10: 3,739,797 km (0.11 R)
• M11: 5,278,411 km (0.066 R)
• M12: 6,277,276 km (0.028 R)
• M13: 8,460,657 km (0.09 R)
• M14: 9,383,227 km (0.038 R)
• M15: 9,868,822 km (0.093 R)
• M16: 10,168,167 km (0.11 R)
• M17: 10,732,450 km (0.051 R)
• M18: 10,995,743 km (0.028 R)
• M19: 14,119,795 km (0.081 R)
• M20: 14,308,887 km (0.1 R)
• M21: 14,499,624 km (0.078 R)
• M22: 15,950,873 km (0.119 R)
• M23: 18,454,842 km (0.062 R)
• M24: 18,832,577 km (0.106 R)
• M25: 18,985,167 km (0.113 R)
• M26: 32,819,678 km (0.118 R)
• M27: 33,597,288 km (0.113 R)
• M28: 34,729,594 km (0.071 R)
• M29: 35,653,511 km (0.097 R)
• M30: 36,121,603 km (0.113 R)
• M31: 39,638,200 km (0.097 R)
• M32: 39,763,264 km (0.103 R)
• M33: 41,029,610 km (0.09 R)
• M34: 43,243,508 km (0.025 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.3

Radius: 6.1

Gravity: 21.37 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 9.5 AU - 10.42 AU

Year: 20620 Days

Day: 21.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 81,616,731 km

• M1: 87,365 km (0.106 R)
• M2: 644,019 km (0.073 R)
• M3: 1,231,490 km (0.114 R)
• M4: 1,542,354 km (0.071 R)
• M5: 1,808,937 km (0.103 R)
• M6: 2,389,377 km (0.049 R)
• M7: 3,880,270 km (0.066 R)
• M8: 4,341,629 km (0.073 R)
• M9: 5,333,762 km (0.048 R)
• M10: 5,654,650 km (0.104 R)
• M11: 8,064,672 km (0.053 R)
• M12: 11,148,781 km (0.057 R)
• M13: 12,987,040 km (0.1 R)
• M14: 13,348,319 km (0.102 R)
• M15: 15,097,268 km (0.111 R)
• M16: 16,484,339 km (0.113 R)
• M17: 18,312,425 km (0.101 R)
• M18: 19,042,911 km (0.118 R)
• M19: 21,551,668 km (0.061 R)
• M20: 22,780,465 km (0.077 R)
• M21: 23,200,386 km (0.077 R)
• M22: 23,947,328 km (0.058 R)
• M23: 24,710,277 km (0.1 R)
• M24: 25,489,383 km (0.049 R)
• M25: 25,828,222 km (0.095 R)
• M26: 35,448,113 km (0.054 R)
• M27: 37,447,189 km (0.101 R)
• M28: 39,822,355 km (0.118 R)
• M29: 51,040,998 km (0.103 R)
• M30: 53,956,062 km (0.088 R)
• M31: 54,701,808 km (0.106 R)
• M32: 56,404,830 km (0.078 R)
• M33: 61,522,723 km (0.109 R)
• M34: 62,336,535 km (0.113 R)
• M35: 71,543,835 km (0.091 R)
• M36: 81,616,709 km (0.075 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 14,264 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit