🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.77 AU - 0.79 AU

Year: 253 Days

Day: 12.3 Hours

Environment

Temp: 181 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.92 AU - 1.44 AU

Year: 471 Days

Day: 13.2 Hours

Environment

Temp: -8 °C

Axial Tilt: 47 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 99,127,249 km

• M1: 41,887 km (0.1 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.05 AU - 1.59 AU

Year: 557 Days

Day: 33.1 Hours

Environment

Temp: -12 °C

Axial Tilt: 21.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.03 AU - 3.17 AU

Year: 2004 Days

Day: 33.2 Hours

Environment

Temp: -109 °C

Axial Tilt: 40 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.48 AU - 4 AU

Year: 2141 Days

Day: 40.6 Hours

Environment

Temp: -112 °C

Axial Tilt: 43.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.38 AU - 4.94 AU

Year: 3115 Days

Day: 43.6 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,127,249 km

• M1: 2,423,934 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.7

Radius: 9

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.03 AU - 6.57 AU

Year: 4479 Days

Day: 5.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 99,127,249 km

• M1: 112,198 km (0.054 R)
• M2: 419,472 km (0.032 R)
• M3: 1,858,454 km (0.065 R)
• M4: 2,246,362 km (0.117 R)
• M5: 2,621,254 km (0.109 R)
• M6: 2,911,923 km (0.094 R)
• M7: 3,339,623 km (0.074 R)
• M8: 3,766,276 km (0.087 R)
• M9: 4,321,284 km (0.066 R)
• M10: 6,108,979 km (0.084 R)
• M11: 6,654,861 km (0.102 R)
• M12: 7,500,239 km (0.074 R)
• M13: 9,363,929 km (0.053 R)
• M14: 10,339,906 km (0.055 R)
• M15: 24,933,328 km (0.047 R)
• M16: 25,468,439 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.9

Radius: 13.8

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.21 AU - 9.87 AU

Year: 8369 Days

Day: 11.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 99,127,249 km

• M1: 171,888 km (0.084 R)
• M2: 1,277,267 km (0.052 R)
• M3: 2,043,956 km (0.113 R)
• M4: 4,752,276 km (0.118 R)
• M5: 7,117,268 km (0.041 R)
• M6: 8,795,756 km (0.106 R)
• M7: 9,288,083 km (0.111 R)
• M8: 10,279,169 km (0.091 R)
• M9: 14,462,973 km (0.047 R)
• M10: 16,523,085 km (0.103 R)
• M11: 20,200,500 km (0.086 R)
• M12: 20,666,198 km (0.081 R)
• M13: 26,458,927 km (0.09 R)
• M14: 27,487,861 km (0.119 R)
• M15: 28,252,755 km (0.059 R)
• M16: 29,327,765 km (0.11 R)
• M17: 33,684,055 km (0.117 R)
• M18: 34,120,133 km (0.074 R)
• M19: 36,243,675 km (0.116 R)
• M20: 36,816,934 km (0.064 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.6

Radius: 6.3

Gravity: 17.55 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 12.46 AU - 20.04 AU

Year: 24047 Days

Day: 21.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 99,127,249 km

• M1: 79,287 km (0.039 R)
• M2: 281,693 km (0.102 R)
• M3: 480,957 km (0.105 R)
• M4: 699,819 km (0.119 R)
• M5: 1,089,372 km (0.044 R)
• M6: 2,016,729 km (0.111 R)
• M7: 2,388,928 km (0.11 R)
• M8: 2,991,209 km (0.113 R)
• M9: 3,357,275 km (0.069 R)
• M10: 3,945,494 km (0.07 R)
• M11: 5,285,143 km (0.116 R)
• M12: 7,850,447 km (0.086 R)
• M13: 10,062,102 km (0.061 R)
• M14: 10,310,136 km (0.118 R)
• M15: 11,276,837 km (0.032 R)
• M16: 12,023,181 km (0.096 R)
• M17: 12,657,775 km (0.085 R)
• M18: 16,340,127 km (0.086 R)
• M19: 23,926,235 km (0.082 R)
• M20: 24,257,444 km (0.044 R)
• M21: 25,959,569 km (0.11 R)
• M22: 27,137,503 km (0.097 R)
• M23: 29,095,888 km (0.119 R)
• M24: 29,347,063 km (0.065 R)
• M25: 40,940,300 km (0.07 R)
• M26: 41,255,802 km (0.083 R)
• M27: 43,838,758 km (0.108 R)
• M28: 53,349,892 km (0.101 R)
• M29: 60,400,589 km (0.118 R)
• M30: 64,787,247 km (0.114 R)
• M31: 68,712,247 km (0.111 R)
• M32: 72,331,767 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.4

Radius: 7

Gravity: 13.74 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 18.25 AU - 19.41 AU

Year: 29995 Days

Day: 21.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 99,127,249 km

• M1: 87,066 km (0.078 R)
• M2: 573,708 km (0.099 R)
• M3: 1,071,420 km (0.099 R)
• M4: 2,080,158 km (0.059 R)
• M5: 2,527,606 km (0.101 R)
• M6: 5,226,800 km (0.06 R)
• M7: 5,962,074 km (0.115 R)
• M8: 6,666,380 km (0.092 R)
• M9: 7,013,447 km (0.079 R)
• M10: 7,320,422 km (0.101 R)
• M11: 8,352,348 km (0.072 R)
• M12: 9,233,031 km (0.103 R)
• M13: 9,790,283 km (0.087 R)
• M14: 10,369,676 km (0.079 R)
• M15: 12,467,038 km (0.029 R)
• M16: 14,831,881 km (0.104 R)
• M17: 15,083,654 km (0.117 R)
• M18: 18,236,280 km (0.1 R)
• M19: 21,479,711 km (0.079 R)
• M20: 23,805,509 km (0.084 R)
• M21: 26,663,128 km (0.067 R)
• M22: 27,160,690 km (0.115 R)
• M23: 30,546,539 km (0.069 R)
• M24: 34,349,915 km (0.05 R)
• M25: 50,605,669 km (0.113 R)
• M26: 51,752,336 km (0.083 R)
• M27: 59,631,207 km (0.111 R)
• M28: 68,970,154 km (0.07 R)
• M29: 69,203,676 km (0.108 R)
• M30: 70,852,992 km (0.104 R)
• M31: 75,461,504 km (0.12 R)
• M32: 85,808,591 km (0.091 R)
• M33: 96,185,597 km (0.116 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 19,979 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit