🌌 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: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.44 AU - 0.7 AU

Year: 160 Days

Day: 38 Hours

Environment

Temp: 184 °C

Axial Tilt: 36 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.52 AU - 0.66 AU

Year: 169 Days

Day: 40.2 Hours

Environment

Temp: 194 °C

Axial Tilt: 158.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.66 AU - 0.96 AU

Year: 272 Days

Day: 39.1 Hours

Environment

Temp: 107 °C

Axial Tilt: 38.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.47 AU - 1.49 AU

Year: 671 Days

Day: 45.6 Hours

Environment

Temp: -47 °C

Axial Tilt: 28 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,374,943 km

• M1: 203,603 km (0.089 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.24 AU - 2 AU

Year: 769 Days

Day: 15.3 Hours

Environment

Temp: -54 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.97 AU - 2.99 AU

Year: 1456 Days

Day: 28 Hours

Environment

Temp: -101 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,374,943 km

• M1: 1,142,329 km (0.048 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.77

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.34 AU - 3.18 AU

Year: 1709 Days

Day: 26.6 Hours

Environment

Temp: -94 °C

Axial Tilt: 27.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.82 AU - 4.22 AU

Year: 2462 Days

Day: 13.4 Hours

Environment

Temp: -127 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.6 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.1

Radius: 14.4

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.54 AU - 6.8 AU

Year: 5033 Days

Day: 8 Hours

Environment

Temp: -150 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 42,374,943 km

• M1: 194,627 km (0.082 R)
• M2: 690,095 km (0.104 R)
• M3: 1,343,688 km (0.075 R)
• M4: 1,945,520 km (0.065 R)
• M5: 2,707,422 km (0.076 R)
• M6: 3,425,043 km (0.115 R)
• M7: 4,316,347 km (0.095 R)
• M8: 5,650,012 km (0.074 R)
• M9: 6,998,787 km (0.061 R)
• M10: 8,202,002 km (0.115 R)
• M11: 9,036,759 km (0.079 R)
• M12: 9,971,296 km (0.028 R)
• M13: 13,756,721 km (0.059 R)
• M14: 14,649,222 km (0.112 R)
• M15: 17,367,116 km (0.063 R)
• M16: 18,343,541 km (0.108 R)
• M17: 18,946,720 km (0.068 R)
• M18: 20,334,689 km (0.037 R)
• M19: 21,053,507 km (0.057 R)
• M20: 21,566,777 km (0.045 R)
• M21: 22,542,305 km (0.099 R)
• M22: 23,390,375 km (0.116 R)
• M23: 23,861,908 km (0.056 R)
• M24: 24,581,174 km (0.063 R)
• M25: 25,068,714 km (0.117 R)
• M26: 28,574,689 km (0.117 R)
• M27: 29,204,347 km (0.082 R)
• M28: 30,678,335 km (0.075 R)

Planet 10 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.3

Radius: 9

Gravity: 8.09 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 7.69 AU - 8.39 AU

Year: 8498 Days

Day: 11.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 103.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 42,374,943 km

• M1: 111,899 km (0.117 R)
• M2: 688,898 km (0.11 R)
• M3: 1,111,063 km (0.087 R)
• M4: 1,445,564 km (0.075 R)
• M5: 1,817,465 km (0.111 R)
• M6: 2,100,205 km (0.117 R)
• M7: 2,580,563 km (0.051 R)
• M8: 3,310,750 km (0.095 R)
• M9: 4,172,285 km (0.056 R)
• M10: 5,300,253 km (0.04 R)
• M11: 7,573,841 km (0.11 R)
• M12: 8,835,998 km (0.055 R)
• M13: 9,990,744 km (0.091 R)
• M14: 11,190,968 km (0.073 R)
• M15: 12,042,778 km (0.119 R)
• M16: 12,709,536 km (0.064 R)
• M17: 13,109,710 km (0.101 R)
• M18: 15,755,349 km (0.032 R)
• M19: 19,557,079 km (0.119 R)
• M20: 20,949,237 km (0.057 R)
• M21: 24,982,844 km (0.075 R)
• M22: 32,170,573 km (0.093 R)
• M23: 33,129,047 km (0.046 R)
• M24: 34,546,935 km (0.059 R)
• M25: 39,404,378 km (0.086 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 19,239 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit