🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.43 AU - 0.63 AU

Year: 172 Days

Day: 38.5 Hours

Environment

Temp: 17 °C

Axial Tilt: 18.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.54 AU - 0.56 AU

Year: 182 Days

Day: 16.8 Hours

Environment

Temp: 24 °C

Axial Tilt: 22 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 83,232,565 km

• M1: 47,273 km (0.115 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.17 AU - 1.43 AU

Year: 661 Days

Day: 41.1 Hours

Environment

Temp: -82 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.57 AU - 1.59 AU

Year: 886 Days

Day: 17.3 Hours

Environment

Temp: -100 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,232,565 km

• M1: 332,406 km (0.104 R)

Asteroid Belt

Center: 3.18 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.7

Radius: 8.5

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.49 AU - 5.05 AU

Year: 4649 Days

Day: 5.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 83,232,565 km

• M1: 118,930 km (0.095 R)
• M2: 415,882 km (0.09 R)
• M3: 756,367 km (0.097 R)
• M4: 1,152,502 km (0.051 R)
• M5: 1,817,614 km (0.113 R)
• M6: 2,369,032 km (0.053 R)
• M7: 2,784,465 km (0.09 R)
• M8: 4,215,668 km (0.085 R)
• M9: 5,232,934 km (0.056 R)
• M10: 6,169,715 km (0.06 R)
• M11: 7,021,675 km (0.083 R)
• M12: 8,809,071 km (0.099 R)
• M13: 9,689,005 km (0.102 R)
• M14: 11,757,196 km (0.065 R)
• M15: 14,052,626 km (0.114 R)
• M16: 15,038,625 km (0.119 R)
• M17: 16,916,976 km (0.067 R)
• M18: 17,912,550 km (0.119 R)
• M19: 22,080,795 km (0.097 R)
• M20: 24,352,439 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.8

Radius: 12.8

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.81 AU - 5.89 AU

Year: 4766 Days

Day: 5.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,232,565 km

• M1: 159,322 km (0.117 R)
• M2: 664,963 km (0.062 R)
• M3: 2,259,526 km (0.093 R)
• M4: 3,539,934 km (0.059 R)
• M5: 5,282,750 km (0.094 R)
• M6: 5,927,965 km (0.076 R)
• M7: 7,215,704 km (0.093 R)
• M8: 7,807,064 km (0.104 R)
• M9: 8,827,920 km (0.086 R)
• M10: 9,975,485 km (0.109 R)
• M11: 10,420,389 km (0.074 R)
• M12: 11,048,551 km (0.052 R)
• M13: 11,880,165 km (0.089 R)
• M14: 12,706,245 km (0.034 R)
• M15: 15,361,757 km (0.115 R)
• M16: 16,120,816 km (0.101 R)
• M17: 19,723,582 km (0.066 R)
• M18: 22,221,118 km (0.07 R)
• M19: 23,545,807 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 354.5

Radius: 5

Gravity: 14.18 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 9.9 AU - 10.72 AU

Year: 14772 Days

Day: 18.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 83,232,565 km

• M1: 62,233 km (0.047 R)
• M2: 382,971 km (0.046 R)
• M3: 564,582 km (0.059 R)
• M4: 813,364 km (0.047 R)
• M5: 1,462,768 km (0.117 R)
• M6: 1,665,323 km (0.102 R)
• M7: 1,886,579 km (0.096 R)
• M8: 2,145,084 km (0.094 R)
• M9: 3,574,043 km (0.084 R)
• M10: 3,782,133 km (0.12 R)
• M11: 4,727,293 km (0.104 R)
• M12: 6,444,676 km (0.118 R)
• M13: 6,792,641 km (0.047 R)
• M14: 7,400,457 km (0.066 R)
• M15: 7,955,914 km (0.096 R)
• M16: 8,911,396 km (0.098 R)
• M17: 12,766,832 km (0.117 R)
• M18: 14,007,447 km (0.096 R)
• M19: 16,653,983 km (0.079 R)
• M20: 17,829,972 km (0.051 R)
• M21: 18,825,396 km (0.064 R)
• M22: 20,263,929 km (0.056 R)
• M23: 21,010,123 km (0.05 R)
• M24: 23,629,283 km (0.119 R)
• M25: 26,068,626 km (0.07 R)
• M26: 29,190,434 km (0.12 R)
• M27: 29,505,038 km (0.087 R)
• M28: 32,777,641 km (0.041 R)
• M29: 34,501,308 km (0.112 R)
• M30: 38,252,924 km (0.037 R)
• M31: 39,518,821 km (0.097 R)
• M32: 40,551,345 km (0.03 R)
• M33: 42,535,761 km (0.108 R)
• M34: 46,983,754 km (0.103 R)
• M35: 49,171,474 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 814.2

Radius: 5.3

Gravity: 28.99 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 12.93 AU - 13.13 AU

Year: 20988 Days

Day: 19.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 83,232,565 km

• M1: 94,396 km (0.077 R)
• M2: 481,705 km (0.113 R)
• M3: 731,234 km (0.092 R)
• M4: 1,172,997 km (0.104 R)
• M5: 1,396,795 km (0.069 R)
• M6: 1,776,774 km (0.029 R)
• M7: 3,786,621 km (0.05 R)
• M8: 4,451,584 km (0.093 R)
• M9: 7,150,329 km (0.12 R)
• M10: 7,444,140 km (0.034 R)
• M11: 10,461,678 km (0.099 R)
• M12: 10,776,731 km (0.086 R)
• M13: 11,359,714 km (0.087 R)
• M14: 11,558,530 km (0.058 R)
• M15: 13,089,066 km (0.034 R)
• M16: 13,528,883 km (0.109 R)
• M17: 13,902,729 km (0.072 R)
• M18: 17,496,369 km (0.094 R)
• M19: 22,695,343 km (0.067 R)
• M20: 23,011,144 km (0.101 R)
• M21: 23,976,051 km (0.109 R)
• M22: 28,837,234 km (0.084 R)
• M23: 30,084,431 km (0.053 R)
• M24: 31,497,383 km (0.119 R)
• M25: 35,151,909 km (0.065 R)
• M26: 38,182,313 km (0.116 R)
• M27: 39,837,165 km (0.114 R)
• M28: 42,647,211 km (0.047 R)
• M29: 43,289,136 km (0.11 R)
• M30: 47,619,545 km (0.099 R)
• M31: 48,310,388 km (0.097 R)
• M32: 49,007,814 km (0.092 R)
• M33: 52,047,194 km (0.091 R)
• M34: 54,642,717 km (0.057 R)
• M35: 56,935,154 km (0.092 R)
• M36: 59,689,550 km (0.089 R)
• M37: 62,325,614 km (0.102 R)
• M38: 79,545,975 km (0.03 R)
• M39: 81,498,227 km (0.105 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 15,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit