🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.92 AU - 1.24 AU

Year: 427 Days

Day: 22.7 Hours

Environment

Temp: 7 °C

Axial Tilt: 28.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 71,677,727 km

• M1: 67,469 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.23 AU - 1.71 AU

Year: 679 Days

Day: 32.2 Hours

Environment

Temp: -58 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.24 AU - 3.26 AU

Year: 2231 Days

Day: 21.3 Hours

Environment

Temp: -111 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.2

Radius: 9.1

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.47 AU - 10.19 AU

Year: 9155 Days

Day: 10.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,677,727 km

• M1: 116,088 km (0.036 R)
• M2: 593,006 km (0.061 R)
• M3: 2,439,044 km (0.106 R)
• M4: 3,110,589 km (0.107 R)
• M5: 3,599,026 km (0.112 R)
• M6: 6,115,561 km (0.114 R)
• M7: 7,879,320 km (0.106 R)
• M8: 10,254,635 km (0.085 R)
• M9: 12,099,177 km (0.112 R)
• M10: 14,718,785 km (0.063 R)
• M11: 21,050,066 km (0.051 R)
• M12: 22,706,713 km (0.111 R)
• M13: 25,997,268 km (0.085 R)
• M14: 30,000,507 km (0.11 R)
• M15: 32,309,251 km (0.075 R)
• M16: 33,177,367 km (0.072 R)
• M17: 36,923,597 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.3

Radius: 12

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 6.86 AU - 10.54 AU

Year: 9772 Days

Day: 6.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,677,727 km

• M1: 180,265 km (0.028 R)
• M2: 1,490,892 km (0.037 R)
• M3: 4,391,296 km (0.105 R)
• M4: 5,207,951 km (0.106 R)
• M5: 8,200,207 km (0.113 R)
• M6: 11,634,974 km (0.102 R)
• M7: 18,896,156 km (0.067 R)
• M8: 21,112,299 km (0.062 R)
• M9: 21,795,811 km (0.057 R)
• M10: 24,305,016 km (0.118 R)
• M11: 26,055,162 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.2

Radius: 8.1

Gravity: 12.97 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 9.18 AU - 12.88 AU

Year: 13950 Days

Day: 14.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,677,727 km

• M1: 104,569 km (0.102 R)
• M2: 421,866 km (0.119 R)
• M3: 1,229,694 km (0.112 R)
• M4: 2,014,335 km (0.099 R)
• M5: 2,647,733 km (0.076 R)
• M6: 2,950,369 km (0.104 R)
• M7: 3,881,915 km (0.052 R)
• M8: 9,080,740 km (0.082 R)
• M9: 10,499,078 km (0.065 R)
• M10: 12,185,495 km (0.075 R)
• M11: 16,393,084 km (0.079 R)
• M12: 17,741,260 km (0.089 R)
• M13: 21,945,110 km (0.071 R)
• M14: 22,228,000 km (0.107 R)
• M15: 24,986,734 km (0.104 R)
• M16: 25,295,205 km (0.088 R)
• M17: 31,771,147 km (0.1 R)
• M18: 34,238,016 km (0.091 R)
• M19: 35,517,975 km (0.043 R)
• M20: 38,037,353 km (0.086 R)
• M21: 43,429,010 km (0.117 R)
• M22: 47,555,368 km (0.054 R)
• M23: 58,545,276 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.8

Radius: 13.6

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 8.95 AU - 13.43 AU

Year: 14254 Days

Day: 13.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 71,677,727 km

• M1: 169,195 km (0.118 R)
• M2: 707,598 km (0.113 R)
• M3: 1,370,017 km (0.042 R)
• M4: 2,974,903 km (0.043 R)
• M5: 3,491,614 km (0.051 R)
• M6: 4,038,095 km (0.116 R)
• M7: 4,947,501 km (0.077 R)
• M8: 5,832,223 km (0.062 R)
• M9: 6,437,047 km (0.104 R)
• M10: 9,126,517 km (0.11 R)
• M11: 10,928,124 km (0.103 R)
• M12: 11,976,656 km (0.045 R)
• M13: 14,417,196 km (0.103 R)
• M14: 15,601,861 km (0.045 R)
• M15: 20,353,538 km (0.115 R)
• M16: 21,276,408 km (0.05 R)
• M17: 26,315,013 km (0.095 R)
• M18: 32,097,570 km (0.106 R)
• M19: 32,593,935 km (0.051 R)
• M20: 43,477,480 km (0.114 R)
• M21: 44,391,373 km (0.093 R)
• M22: 49,813,697 km (0.085 R)
• M23: 59,868,021 km (0.029 R)
• M24: 60,431,855 km (0.113 R)
• M25: 62,915,928 km (0.099 R)
• M26: 64,478,029 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 449.8

Radius: 3.4

Gravity: 38.91 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 14.06 AU - 16.34 AU

Year: 22566 Days

Day: 21.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 71,677,727 km

• M1: 42,336 km (0.118 R)
• M2: 154,086 km (0.073 R)
• M3: 298,897 km (0.074 R)
• M4: 460,013 km (0.051 R)
• M5: 1,272,479 km (0.079 R)
• M6: 1,598,004 km (0.108 R)
• M7: 1,789,340 km (0.092 R)
• M8: 1,976,487 km (0.08 R)
• M9: 2,345,844 km (0.106 R)
• M10: 2,547,053 km (0.102 R)
• M11: 2,833,084 km (0.112 R)
• M12: 4,626,913 km (0.114 R)
• M13: 5,425,765 km (0.11 R)
• M14: 6,228,059 km (0.066 R)
• M15: 6,483,422 km (0.086 R)
• M16: 6,701,536 km (0.085 R)
• M17: 7,014,943 km (0.119 R)
• M18: 7,575,038 km (0.031 R)
• M19: 9,322,939 km (0.11 R)
• M20: 9,998,972 km (0.118 R)
• M21: 11,011,899 km (0.116 R)
• M22: 11,960,649 km (0.092 R)
• M23: 12,421,560 km (0.091 R)
• M24: 13,238,963 km (0.12 R)
• M25: 13,589,919 km (0.111 R)
• M26: 15,361,308 km (0.077 R)
• M27: 15,905,545 km (0.112 R)
• M28: 16,142,807 km (0.107 R)
• M29: 25,143,513 km (0.118 R)
• M30: 25,681,466 km (0.115 R)
• M31: 37,690,884 km (0.068 R)
• M32: 39,539,764 km (0.11 R)
• M33: 39,974,945 km (0.077 R)
• M34: 40,854,580 km (0.093 R)
• M35: 45,131,284 km (0.099 R)
• M36: 52,788,451 km (0.06 R)
• M37: 54,919,323 km (0.075 R)
• M38: 62,828,413 km (0.088 R)
• M39: 63,420,671 km (0.071 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 11,373 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit