🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.47 AU - 0.67 AU

Year: 156 Days

Day: 30.1 Hours

Environment

Temp: 226 °C

Axial Tilt: 0.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.53 AU - 0.71 AU

Year: 177 Days

Day: 19.4 Hours

Environment

Temp: 217 °C

Axial Tilt: 12.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.45

Radius: 1.43

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.61 AU - 0.87 AU

Year: 231 Days

Day: 26.4 Hours

Environment

Temp: 147 °C

Axial Tilt: 43.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 26,483,030 km

• M1: 38,596 km (0.051 R)
• M2: 64,925 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.77 AU - 1.23 AU

Year: 363 Days

Day: 17 Hours

Environment

Temp: 47 °C

Axial Tilt: 24.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.9 AU - 1.16 AU

Year: 380 Days

Day: 42.1 Hours

Environment

Temp: 36 °C

Axial Tilt: 19.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 26,483,030 km

• M1: 206,744 km (0.051 R)
• M2: 365,019 km (0.08 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.6

Radius: 11.9

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 6.51 AU - 6.91 AU

Year: 6317 Days

Day: 6.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 26,483,030 km

• M1: 148,251 km (0.095 R)
• M2: 519,105 km (0.101 R)
• M3: 1,539,512 km (0.046 R)
• M4: 2,136,856 km (0.069 R)
• M5: 5,701,324 km (0.105 R)
• M6: 6,490,603 km (0.091 R)
• M7: 10,575,522 km (0.062 R)
• M8: 11,570,199 km (0.075 R)
• M9: 14,077,010 km (0.083 R)
• M10: 16,426,744 km (0.097 R)
• M11: 19,439,047 km (0.103 R)
• M12: 20,712,274 km (0.084 R)
• M13: 23,977,547 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.1

Radius: 9.8

Gravity: 9.28 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 9.02 AU - 9.22 AU

Year: 10010 Days

Day: 8.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,483,030 km

• M1: 121,922 km (0.103 R)
• M2: 558,898 km (0.111 R)
• M3: 998,267 km (0.118 R)
• M4: 2,579,366 km (0.09 R)
• M5: 3,465,135 km (0.107 R)
• M6: 3,992,019 km (0.07 R)
• M7: 5,442,071 km (0.115 R)
• M8: 6,573,480 km (0.092 R)
• M9: 15,622,805 km (0.081 R)
• M10: 20,694,621 km (0.113 R)
• M11: 22,872,318 km (0.115 R)
• M12: 26,767,248 km (0.098 R)
• M13: 28,608,947 km (0.115 R)
• M14: 29,454,026 km (0.091 R)
• M15: 30,206,952 km (0.091 R)
• M16: 32,543,072 km (0.112 R)
• M17: 37,196,463 km (0.086 R)
• M18: 39,877,108 km (0.114 R)
• M19: 44,345,596 km (0.089 R)
• M20: 50,501,100 km (0.068 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.8

Radius: 14.6

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.03 AU - 10.35 AU

Year: 10125 Days

Day: 10.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 26,483,030 km

• M1: 181,612 km (0.098 R)
• M2: 1,115,551 km (0.091 R)
• M3: 2,401,345 km (0.112 R)
• M4: 3,033,097 km (0.075 R)
• M5: 3,561,028 km (0.104 R)
• M6: 5,881,739 km (0.075 R)
• M7: 6,355,516 km (0.117 R)
• M8: 6,891,675 km (0.049 R)
• M9: 7,772,507 km (0.118 R)
• M10: 8,727,241 km (0.098 R)
• M11: 9,300,649 km (0.102 R)
• M12: 12,226,634 km (0.06 R)
• M13: 13,172,691 km (0.104 R)
• M14: 14,227,057 km (0.108 R)
• M15: 16,906,055 km (0.076 R)
• M16: 17,729,442 km (0.084 R)
• M17: 20,514,655 km (0.118 R)
• M18: 22,745,459 km (0.046 R)
• M19: 24,004,923 km (0.072 R)
• M20: 26,025,841 km (0.11 R)
• M21: 27,217,089 km (0.073 R)
• M22: 30,604,882 km (0.111 R)
• M23: 34,810,078 km (0.083 R)
• M24: 36,481,834 km (0.113 R)
• M25: 38,206,548 km (0.063 R)
• M26: 39,386,127 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 42.1

Radius: 3.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 10.42 AU - 15.1 AU

Year: 16566 Days

Day: 18.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 26,483,030 km

• M1: 38,596 km (0.064 R)
• M2: 222,751 km (0.091 R)
• M3: 320,139 km (0.061 R)
• M4: 1,096,403 km (0.109 R)
• M5: 4,202,653 km (0.034 R)
• M6: 5,722,119 km (0.104 R)
• M7: 6,310,637 km (0.081 R)
• M8: 7,334,484 km (0.07 R)
• M9: 13,126,316 km (0.025 R)
• M10: 13,275,764 km (0.064 R)
• M11: 21,932,843 km (0.049 R)
• M12: 25,464,998 km (0.056 R)

Kuiper Belt

Range: 30.2 - 58.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 352 - 15,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit