🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.5 AU - 0.78 AU

Year: 232 Days

Day: 18.8 Hours

Environment

Temp: -5 °C

Axial Tilt: 168.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.56 AU - 1.86 AU

Year: 1013 Days

Day: 37.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,387,500 km

• M1: 203,603 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.6

Radius: 10.9

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.34 AU - 3.28 AU

Year: 2134 Days

Day: 5.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,387,500 km

• M1: 135,536 km (0.116 R)
• M2: 572,062 km (0.079 R)
• M3: 1,054,067 km (0.109 R)
• M4: 1,570,030 km (0.114 R)
• M5: 2,800,921 km (0.072 R)
• M6: 4,250,823 km (0.088 R)
• M7: 4,816,752 km (0.117 R)
• M8: 5,711,946 km (0.09 R)
• M9: 8,008,124 km (0.052 R)
• M10: 8,809,220 km (0.112 R)
• M11: 10,498,928 km (0.097 R)
• M12: 11,920,407 km (0.095 R)
• M13: 13,894,501 km (0.118 R)
• M14: 15,465,129 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.1

Radius: 9.9

Gravity: 8.01 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 5.6 AU - 7.88 AU

Year: 7927 Days

Day: 11.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,387,500 km

• M1: 123,119 km (0.085 R)
• M2: 431,141 km (0.071 R)
• M3: 768,783 km (0.115 R)
• M4: 1,462,170 km (0.112 R)
• M5: 2,223,623 km (0.069 R)
• M6: 2,824,109 km (0.078 R)
• M7: 3,723,192 km (0.094 R)
• M8: 4,347,913 km (0.034 R)
• M9: 5,287,986 km (0.093 R)
• M10: 5,608,125 km (0.106 R)
• M11: 6,358,209 km (0.094 R)
• M12: 7,727,927 km (0.048 R)
• M13: 8,310,611 km (0.066 R)
• M14: 11,406,838 km (0.056 R)
• M15: 12,440,409 km (0.077 R)
• M16: 12,836,395 km (0.077 R)
• M17: 13,713,637 km (0.094 R)
• M18: 14,505,608 km (0.116 R)
• M19: 16,927,149 km (0.077 R)
• M20: 19,004,614 km (0.117 R)
• M21: 25,335,447 km (0.087 R)
• M22: 27,278,723 km (0.04 R)
• M23: 31,251,743 km (0.065 R)
• M24: 31,669,121 km (0.096 R)
• M25: 32,621,760 km (0.119 R)
• M26: 33,051,256 km (0.101 R)
• M27: 40,694,062 km (0.1 R)
• M28: 41,442,350 km (0.091 R)

Planet 5 - Ice Giant

Semi-Major Axis: 10.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721.2

Radius: 3.7

Gravity: 52.68 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 8.27 AU - 13.11 AU

Year: 15834 Days

Day: 22.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 82,387,500 km

• M1: 50,564 km (0.118 R)
• M2: 184,903 km (0.036 R)
• M3: 317,147 km (0.102 R)
• M4: 445,054 km (0.068 R)
• M5: 731,833 km (0.083 R)
• M6: 1,745,508 km (0.11 R)
• M7: 3,318,230 km (0.078 R)
• M8: 3,707,185 km (0.103 R)
• M9: 3,882,962 km (0.066 R)
• M10: 4,003,239 km (0.078 R)
• M11: 4,125,909 km (0.078 R)
• M12: 6,159,244 km (0.104 R)
• M13: 7,505,325 km (0.093 R)
• M14: 9,957,533 km (0.104 R)
• M15: 10,821,312 km (0.096 R)
• M16: 13,850,369 km (0.041 R)
• M17: 14,705,471 km (0.119 R)
• M18: 15,146,036 km (0.046 R)
• M19: 17,076,447 km (0.078 R)
• M20: 22,077,953 km (0.093 R)
• M21: 27,973,904 km (0.1 R)
• M22: 29,451,482 km (0.104 R)
• M23: 37,353,242 km (0.069 R)
• M24: 39,282,606 km (0.1 R)
• M25: 42,005,736 km (0.117 R)
• M26: 46,088,112 km (0.11 R)
• M27: 55,558,256 km (0.102 R)
• M28: 56,267,649 km (0.074 R)
• M29: 62,734,465 km (0.092 R)
• M30: 65,651,325 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 743.6

Radius: 6.2

Gravity: 19.34 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 11.28 AU - 15.04 AU

Year: 21628 Days

Day: 24.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 82,387,500 km

• M1: 77,043 km (0.093 R)
• M2: 328,068 km (0.109 R)
• M3: 581,487 km (0.106 R)
• M4: 1,131,708 km (0.097 R)
• M5: 1,523,804 km (0.102 R)
• M6: 1,788,891 km (0.107 R)
• M7: 2,084,646 km (0.062 R)
• M8: 2,553,037 km (0.11 R)
• M9: 5,424,419 km (0.042 R)
• M10: 6,306,897 km (0.094 R)
• M11: 7,330,445 km (0.118 R)
• M12: 7,527,765 km (0.054 R)
• M13: 8,088,906 km (0.066 R)
• M14: 13,401,426 km (0.059 R)
• M15: 14,224,514 km (0.096 R)
• M16: 14,532,087 km (0.051 R)
• M17: 16,810,612 km (0.05 R)
• M18: 18,304,347 km (0.071 R)
• M19: 18,944,326 km (0.106 R)
• M20: 20,172,375 km (0.053 R)
• M21: 24,502,037 km (0.093 R)
• M22: 25,730,385 km (0.114 R)
• M23: 29,786,582 km (0.033 R)
• M24: 30,799,359 km (0.077 R)
• M25: 31,573,827 km (0.106 R)
• M26: 31,965,774 km (0.074 R)
• M27: 39,893,713 km (0.093 R)
• M28: 40,968,274 km (0.071 R)
• M29: 46,632,648 km (0.093 R)
• M30: 52,614,020 km (0.111 R)
• M31: 56,745,016 km (0.071 R)
• M32: 60,081,347 km (0.096 R)
• M33: 61,492,354 km (0.082 R)
• M34: 74,504,676 km (0.119 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 19,289 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit