🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.52 AU - 0.66 AU

Year: 169 Days

Day: 24.1 Hours

Environment

Temp: 203 °C

Axial Tilt: 3.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.98 AU - 1.08 AU

Year: 390 Days

Day: 41.8 Hours

Environment

Temp: 29 °C

Axial Tilt: 13.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.07 AU - 1.59 AU

Year: 572 Days

Day: 13.6 Hours

Environment

Temp: -21 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.37 AU - 1.44 AU

Year: 618 Days

Day: 31.5 Hours

Environment

Temp: -42 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.51 AU - 2.17 AU

Year: 930 Days

Day: 36 Hours

Environment

Temp: -69 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,793,590 km

• M1: 987,047 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.56 AU - 2.5 AU

Year: 1078 Days

Day: 47.6 Hours

Environment

Temp: -77 °C

Axial Tilt: 83.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,793,590 km

• M1: 909,405 km (0.099 R)

Asteroid Belt

Center: 3.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.5

Radius: 9.7

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.87 AU - 5.47 AU

Year: 3762 Days

Day: 11.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 67.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,793,590 km

• M1: 121,922 km (0.104 R)
• M2: 830,867 km (0.094 R)
• M3: 1,433,896 km (0.112 R)
• M4: 2,307,547 km (0.097 R)
• M5: 2,689,919 km (0.119 R)
• M6: 3,304,168 km (0.08 R)
• M7: 4,281,042 km (0.085 R)
• M8: 5,358,297 km (0.119 R)
• M9: 6,210,705 km (0.08 R)
• M10: 6,732,503 km (0.057 R)
• M11: 7,283,172 km (0.071 R)
• M12: 8,111,496 km (0.098 R)
• M13: 9,873,011 km (0.054 R)
• M14: 11,150,876 km (0.1 R)
• M15: 11,829,751 km (0.081 R)
• M16: 13,369,861 km (0.084 R)
• M17: 14,188,161 km (0.025 R)
• M18: 18,103,287 km (0.064 R)
• M19: 18,977,387 km (0.107 R)
• M20: 21,285,234 km (0.086 R)
• M21: 22,972,099 km (0.11 R)
• M22: 23,996,246 km (0.077 R)
• M23: 24,822,027 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673

Radius: 8.1

Gravity: 10.26 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 4.57 AU - 6.41 AU

Year: 4795 Days

Day: 14.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 68,793,590 km

• M1: 100,829 km (0.101 R)
• M2: 487,988 km (0.085 R)
• M3: 839,992 km (0.07 R)
• M4: 1,165,367 km (0.036 R)
• M5: 1,446,761 km (0.108 R)
• M6: 2,062,057 km (0.106 R)
• M7: 2,349,883 km (0.061 R)
• M8: 3,063,764 km (0.086 R)
• M9: 3,759,245 km (0.051 R)
• M10: 4,994,026 km (0.117 R)
• M11: 5,488,447 km (0.094 R)
• M12: 6,967,371 km (0.07 R)
• M13: 8,694,927 km (0.12 R)
• M14: 9,575,012 km (0.087 R)
• M15: 13,382,427 km (0.108 R)
• M16: 13,695,386 km (0.035 R)
• M17: 14,553,778 km (0.053 R)
• M18: 15,791,850 km (0.041 R)
• M19: 17,159,923 km (0.055 R)
• M20: 20,266,323 km (0.09 R)
• M21: 23,200,984 km (0.118 R)
• M22: 24,187,582 km (0.118 R)
• M23: 25,679,522 km (0.045 R)
• M24: 27,065,546 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.9

Radius: 3

Gravity: 61.88 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 10.58 AU - 16.98 AU

Year: 19069 Days

Day: 24.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 68,793,590 km

• M1: 58,044 km (0.045 R)
• M2: 159,172 km (0.092 R)
• M3: 346,169 km (0.119 R)
• M4: 516,412 km (0.08 R)
• M5: 739,911 km (0.027 R)
• M6: 1,875,209 km (0.043 R)
• M7: 2,046,200 km (0.094 R)
• M8: 2,206,868 km (0.058 R)
• M9: 2,354,222 km (0.034 R)
• M10: 2,553,336 km (0.089 R)
• M11: 2,910,127 km (0.083 R)
• M12: 3,245,227 km (0.12 R)
• M13: 3,353,386 km (0.094 R)
• M14: 3,520,038 km (0.083 R)
• M15: 3,634,181 km (0.088 R)
• M16: 4,115,886 km (0.117 R)
• M17: 4,339,385 km (0.082 R)
• M18: 4,707,097 km (0.044 R)
• M19: 5,095,004 km (0.064 R)
• M20: 6,096,263 km (0.117 R)
• M21: 10,215,739 km (0.108 R)
• M22: 11,290,450 km (0.067 R)
• M23: 12,770,422 km (0.049 R)
• M24: 13,245,395 km (0.055 R)
• M25: 14,086,734 km (0.114 R)
• M26: 15,720,492 km (0.073 R)
• M27: 19,804,514 km (0.118 R)
• M28: 24,335,385 km (0.076 R)
• M29: 32,290,700 km (0.082 R)
• M30: 33,297,195 km (0.077 R)
• M31: 37,808,767 km (0.095 R)
• M32: 39,779,121 km (0.089 R)
• M33: 45,157,613 km (0.087 R)
• M34: 46,574,006 km (0.107 R)
• M35: 47,052,719 km (0.054 R)
• M36: 47,373,607 km (0.042 R)
• M37: 47,857,705 km (0.111 R)
• M38: 52,881,651 km (0.076 R)
• M39: 53,402,550 km (0.071 R)
• M40: 57,327,699 km (0.043 R)
• M41: 66,348,002 km (0.119 R)
• M42: 68,381,935 km (0.102 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 207 - 19,703 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit