🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.37

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.48 AU - 0.58 AU

Year: 134 Days

Day: 23.3 Hours

Environment

Temp: 292 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.67 AU - 0.69 AU

Year: 195 Days

Day: 42 Hours

Environment

Temp: 238 °C

Axial Tilt: 15.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 59,634,820 km

• M1: 128,804 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.5

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.59 AU - 0.95 AU

Year: 235 Days

Day: 31.6 Hours

Environment

Temp: 184 °C

Axial Tilt: 47.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 59,634,820 km

• M1: 27,526 km (0.082 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.04 AU - 1.3 AU

Year: 441 Days

Day: 18.8 Hours

Environment

Temp: 16 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.03 AU - 1.47 AU

Year: 487 Days

Day: 43.6 Hours

Environment

Temp: 32 °C

Axial Tilt: 2.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 59,634,820 km

• M1: 120,875 km (0.106 R)

Planet 6 - Terrestrial

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 4.53 AU - 5.73 AU

Year: 4046 Days

Day: 46.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 174.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 59,634,820 km

• M1: 29,321 km (0.064 R)
• M2: 885,919 km (0.041 R)

Asteroid Belt

Center: 7.22 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.8

Radius: 10.9

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 9.13 AU - 9.47 AU

Year: 9877 Days

Day: 11.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,634,820 km

• M1: 135,685 km (0.093 R)
• M2: 736,770 km (0.099 R)
• M3: 1,528,292 km (0.098 R)
• M4: 2,319,216 km (0.117 R)
• M5: 2,948,424 km (0.102 R)
• M6: 3,766,126 km (0.078 R)
• M7: 4,400,571 km (0.082 R)
• M8: 6,777,232 km (0.095 R)
• M9: 7,339,272 km (0.097 R)
• M10: 8,694,927 km (0.111 R)
• M11: 10,470,953 km (0.103 R)
• M12: 10,896,260 km (0.079 R)
• M13: 12,536,152 km (0.12 R)
• M14: 12,895,037 km (0.09 R)
• M15: 13,696,134 km (0.037 R)
• M16: 14,141,038 km (0.062 R)
• M17: 14,529,992 km (0.118 R)
• M18: 15,740,090 km (0.086 R)
• M19: 16,655,030 km (0.097 R)
• M20: 19,215,547 km (0.081 R)
• M21: 20,015,896 km (0.112 R)
• M22: 20,506,876 km (0.089 R)
• M23: 29,284,531 km (0.031 R)
• M24: 32,204,532 km (0.103 R)
• M25: 33,219,554 km (0.108 R)
• M26: 39,505,806 km (0.057 R)
• M27: 41,987,485 km (0.086 R)
• M28: 47,115,401 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.9

Radius: 5.2

Gravity: 18.86 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 15.05 AU - 19.27 AU

Year: 24755 Days

Day: 18.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 59,634,820 km

• M1: 82,728 km (0.063 R)
• M2: 251,474 km (0.116 R)
• M3: 575,802 km (0.038 R)
• M4: 759,060 km (0.109 R)
• M5: 1,082,341 km (0.1 R)
• M6: 1,789,789 km (0.055 R)
• M7: 2,523,866 km (0.034 R)
• M8: 3,159,208 km (0.107 R)
• M9: 3,678,761 km (0.066 R)
• M10: 4,186,796 km (0.059 R)
• M11: 6,513,042 km (0.038 R)
• M12: 7,206,728 km (0.084 R)
• M13: 9,014,917 km (0.082 R)
• M14: 9,182,616 km (0.076 R)
• M15: 10,173,403 km (0.074 R)
• M16: 10,355,314 km (0.077 R)
• M17: 14,697,542 km (0.111 R)
• M18: 15,086,646 km (0.092 R)
• M19: 16,130,540 km (0.08 R)
• M20: 16,796,400 km (0.084 R)
• M21: 18,094,012 km (0.085 R)
• M22: 19,456,998 km (0.118 R)
• M23: 23,004,861 km (0.114 R)
• M24: 23,635,117 km (0.077 R)
• M25: 25,483,698 km (0.088 R)
• M26: 31,475,542 km (0.055 R)
• M27: 34,933,048 km (0.061 R)
• M28: 37,614,141 km (0.062 R)
• M29: 46,641,325 km (0.11 R)
• M30: 53,277,337 km (0.087 R)
• M31: 54,936,377 km (0.101 R)
• M32: 61,916,764 km (0.091 R)
• M33: 64,783,657 km (0.03 R)
• M34: 70,121,010 km (0.067 R)
• M35: 72,783,852 km (0.071 R)
• M36: 75,974,924 km (0.12 R)
• M37: 76,438,229 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 125.7

Radius: 3.6

Gravity: 9.7 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 19.77 AU - 21.29 AU

Year: 32395 Days

Day: 19.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,634,820 km

• M1: 48,619 km (0.101 R)
• M2: 245,939 km (0.102 R)
• M3: 550,670 km (0.063 R)
• M4: 1,468,303 km (0.106 R)
• M5: 2,733,303 km (0.03 R)
• M6: 2,990,312 km (0.087 R)
• M7: 3,858,578 km (0.113 R)
• M8: 3,974,067 km (0.117 R)
• M9: 4,396,981 km (0.098 R)
• M10: 6,843,055 km (0.102 R)
• M11: 7,228,569 km (0.103 R)
• M12: 7,903,106 km (0.052 R)
• M13: 9,691,100 km (0.064 R)
• M14: 10,122,241 km (0.034 R)
• M15: 14,663,134 km (0.088 R)
• M16: 15,016,185 km (0.088 R)
• M17: 15,592,885 km (0.104 R)
• M18: 17,568,924 km (0.116 R)
• M19: 22,101,739 km (0.046 R)
• M20: 22,847,335 km (0.094 R)
• M21: 31,830,837 km (0.067 R)
• M22: 34,117,590 km (0.083 R)
• M23: 36,899,512 km (0.118 R)
• M24: 37,552,058 km (0.115 R)
• M25: 43,341,346 km (0.105 R)
• M26: 44,213,950 km (0.109 R)
• M27: 45,098,372 km (0.115 R)
• M28: 59,634,798 km (0.099 R)

Kuiper Belt

Range: 31.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 303 - 10,732 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit