🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.8 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.59 AU - 1.61 AU

Year: 751 Days

Day: 20.2 Hours

Environment

Temp: -56 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.15 AU - 2.39 AU

Year: 1268 Days

Day: 38.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,517,726 km

• M1: 63,280 km (0.05 R)
• M2: 264,489 km (0.069 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.23 AU - 2.87 AU

Year: 1510 Days

Day: 30.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 39.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.7

Radius: 13.2

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.49 AU - 6.81 AU

Year: 5656 Days

Day: 12.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,517,726 km

• M1: 164,258 km (0.105 R)
• M2: 594,801 km (0.041 R)
• M3: 1,070,672 km (0.11 R)
• M4: 1,560,605 km (0.057 R)
• M5: 2,461,483 km (0.119 R)
• M6: 4,628,857 km (0.12 R)
• M7: 6,042,557 km (0.092 R)
• M8: 10,499,527 km (0.095 R)
• M9: 12,259,546 km (0.116 R)
• M10: 14,161,383 km (0.119 R)
• M11: 15,686,234 km (0.11 R)
• M12: 16,252,761 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.3

Radius: 9.3

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.34 AU - 7.24 AU

Year: 6562 Days

Day: 9.7 Hours

Environment

Temp: -152 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,517,726 km

• M1: 115,938 km (0.041 R)
• M2: 690,544 km (0.097 R)
• M3: 985,401 km (0.093 R)
• M4: 1,378,694 km (0.077 R)
• M5: 2,118,605 km (0.034 R)
• M6: 3,887,001 km (0.04 R)
• M7: 4,577,994 km (0.098 R)
• M8: 5,141,080 km (0.113 R)
• M9: 5,439,528 km (0.119 R)
• M10: 5,973,593 km (0.098 R)
• M11: 6,473,549 km (0.06 R)
• M12: 6,822,261 km (0.111 R)
• M13: 7,294,243 km (0.064 R)
• M14: 8,023,083 km (0.104 R)
• M15: 9,055,010 km (0.051 R)
• M16: 9,580,696 km (0.103 R)
• M17: 10,886,686 km (0.056 R)
• M18: 11,837,979 km (0.106 R)
• M19: 12,627,407 km (0.046 R)
• M20: 14,843,998 km (0.078 R)
• M21: 15,267,659 km (0.119 R)
• M22: 15,761,781 km (0.06 R)
• M23: 17,308,025 km (0.06 R)
• M24: 18,118,097 km (0.117 R)
• M25: 23,435,853 km (0.071 R)
• M26: 29,614,095 km (0.107 R)
• M27: 30,285,939 km (0.117 R)
• M28: 32,261,529 km (0.11 R)
• M29: 33,798,497 km (0.078 R)
• M30: 35,062,899 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.8

Radius: 13.9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.87 AU - 9.99 AU

Year: 9077 Days

Day: 9.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,517,726 km

• M1: 172,935 km (0.108 R)
• M2: 762,949 km (0.118 R)
• M3: 1,510,938 km (0.084 R)
• M4: 2,025,854 km (0.05 R)
• M5: 2,877,216 km (0.036 R)
• M6: 3,633,134 km (0.039 R)
• M7: 4,085,069 km (0.101 R)
• M8: 4,660,123 km (0.102 R)
• M9: 5,739,023 km (0.088 R)
• M10: 8,561,935 km (0.107 R)
• M11: 9,461,766 km (0.112 R)
• M12: 17,404,067 km (0.094 R)
• M13: 20,920,365 km (0.106 R)
• M14: 22,384,479 km (0.093 R)
• M15: 27,663,040 km (0.109 R)
• M16: 33,717,864 km (0.108 R)
• M17: 35,274,430 km (0.092 R)
• M18: 38,650,405 km (0.113 R)
• M19: 40,231,505 km (0.075 R)
• M20: 41,855,240 km (0.094 R)
• M21: 42,875,947 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 447.4

Radius: 3.6

Gravity: 34.52 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 11.05 AU - 16.85 AU

Year: 19323 Days

Day: 19.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 149.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 64,517,726 km

• M1: 44,730 km (0.091 R)
• M2: 192,981 km (0.04 R)
• M3: 318,943 km (0.106 R)
• M4: 721,959 km (0.093 R)
• M5: 1,191,098 km (0.116 R)
• M6: 1,600,996 km (0.104 R)
• M7: 1,874,013 km (0.088 R)
• M8: 2,002,966 km (0.092 R)
• M9: 2,669,275 km (0.073 R)
• M10: 3,472,017 km (0.114 R)
• M11: 3,610,545 km (0.11 R)
• M12: 5,315,212 km (0.109 R)
• M13: 7,042,170 km (0.1 R)
• M14: 7,629,940 km (0.095 R)
• M15: 7,770,113 km (0.092 R)
• M16: 8,298,792 km (0.117 R)
• M17: 9,058,001 km (0.038 R)
• M18: 11,126,342 km (0.115 R)
• M19: 13,832,118 km (0.075 R)
• M20: 15,114,920 km (0.049 R)
• M21: 16,089,401 km (0.057 R)
• M22: 16,788,023 km (0.117 R)
• M23: 17,669,005 km (0.108 R)
• M24: 18,328,881 km (0.119 R)
• M25: 18,580,504 km (0.025 R)
• M26: 21,875,846 km (0.061 R)
• M27: 22,444,468 km (0.101 R)
• M28: 26,919,239 km (0.091 R)
• M29: 27,571,935 km (0.057 R)
• M30: 32,808,010 km (0.113 R)
• M31: 36,643,699 km (0.111 R)
• M32: 37,445,095 km (0.107 R)
• M33: 37,579,883 km (0.102 R)
• M34: 41,483,789 km (0.054 R)
• M35: 43,981,325 km (0.086 R)
• M36: 47,675,046 km (0.064 R)
• M37: 49,273,200 km (0.089 R)
• M38: 57,982,190 km (0.112 R)
• M39: 62,602,819 km (0.116 R)
• M40: 64,517,672 km (0.09 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 12,443 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit