🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.52 AU - 0.72 AU

Year: 174 Days

Day: 39.3 Hours

Environment

Temp: 207 °C

Axial Tilt: 33.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.74 AU - 1 AU

Year: 289 Days

Day: 25 Hours

Environment

Temp: 177 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.07 AU - 1.13 AU

Year: 411 Days

Day: 13.4 Hours

Environment

Temp: 37 °C

Axial Tilt: 137.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.26 AU - 1.92 AU

Year: 715 Days

Day: 30.9 Hours

Environment

Temp: -28 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.56 AU - 2 AU

Year: 846 Days

Day: 25.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,634,191 km

• M1: 160,070 km (0.114 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.03 AU - 3.13 AU

Year: 1477 Days

Day: 22.2 Hours

Environment

Temp: -74 °C

Axial Tilt: 46.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.69 AU - 3.45 AU

Year: 1917 Days

Day: 38.3 Hours

Environment

Temp: -107 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.5

Radius: 10.9

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.86 AU - 7.06 AU

Year: 5853 Days

Day: 14.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,634,191 km

• M1: 135,536 km (0.117 R)
• M2: 483,500 km (0.088 R)
• M3: 1,078,002 km (0.11 R)
• M4: 1,556,865 km (0.108 R)
• M5: 2,012,690 km (0.101 R)
• M6: 2,429,320 km (0.113 R)
• M7: 3,180,301 km (0.079 R)
• M8: 4,344,472 km (0.082 R)
• M9: 5,474,534 km (0.055 R)
• M10: 6,348,485 km (0.1 R)
• M11: 7,768,318 km (0.104 R)
• M12: 9,964,714 km (0.111 R)
• M13: 14,293,628 km (0.055 R)
• M14: 14,910,420 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.5

Radius: 4.3

Gravity: 45.24 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 13.23 AU - 14.03 AU

Year: 17937 Days

Day: 16.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,634,191 km

• M1: 53,406 km (0.105 R)
• M2: 260,899 km (0.102 R)
• M3: 451,636 km (0.102 R)
• M4: 605,273 km (0.049 R)
• M5: 891,603 km (0.1 R)
• M6: 1,492,089 km (0.069 R)
• M7: 1,974,094 km (0.043 R)
• M8: 2,176,948 km (0.116 R)
• M9: 2,483,923 km (0.095 R)
• M10: 2,744,971 km (0.055 R)
• M11: 3,638,819 km (0.098 R)
• M12: 4,333,102 km (0.051 R)
• M13: 4,711,435 km (0.109 R)
• M14: 5,224,556 km (0.084 R)
• M15: 5,613,211 km (0.102 R)
• M16: 8,464,397 km (0.093 R)
• M17: 8,945,504 km (0.116 R)
• M18: 9,729,696 km (0.119 R)
• M19: 10,437,294 km (0.076 R)
• M20: 11,627,195 km (0.117 R)
• M21: 12,765,934 km (0.117 R)
• M22: 13,976,929 km (0.109 R)
• M23: 18,329,180 km (0.057 R)
• M24: 21,389,952 km (0.106 R)
• M25: 22,582,397 km (0.113 R)
• M26: 22,785,401 km (0.107 R)
• M27: 25,866,669 km (0.104 R)
• M28: 26,312,470 km (0.06 R)
• M29: 39,628,027 km (0.12 R)
• M30: 43,425,868 km (0.114 R)
• M31: 45,979,803 km (0.112 R)
• M32: 50,686,601 km (0.046 R)
• M33: 60,260,865 km (0.102 R)
• M34: 65,470,311 km (0.094 R)
• M35: 72,504,104 km (0.104 R)
• M36: 72,724,761 km (0.099 R)

Kuiper Belt

Range: 30.8 - 58.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 19,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit