🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.44 AU - 0.68 AU

Year: 152 Days

Day: 44.4 Hours

Environment

Temp: 191 °C

Axial Tilt: 34.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 61,968,553 km

• M1: 38,895 km (0.103 R)
• M2: 68,217 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.54 AU - 0.8 AU

Year: 198 Days

Day: 38.8 Hours

Environment

Temp: 177 °C

Axial Tilt: 21.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.44 AU - 1.56 AU

Year: 664 Days

Day: 13 Hours

Environment

Temp: -22 °C

Axial Tilt: 2.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,968,553 km

• M1: 251,923 km (0.093 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.45 AU - 2.05 AU

Year: 837 Days

Day: 25.9 Hours

Environment

Temp: -44 °C

Axial Tilt: 7.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.19

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 1.55 AU - 2.49 AU

Year: 1038 Days

Day: 20.5 Hours

Environment

Temp: -60 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - 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): 0.101

Orbit Range: 2.76 AU - 3.38 AU

Year: 1945 Days

Day: 36.9 Hours

Environment

Temp: -110 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,968,553 km

• M1: 1,883,288 km (0.058 R)

Asteroid Belt

Center: 4.88 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.5

Radius: 9

Gravity: 11.14 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.21 AU - 7.15 AU

Year: 6244 Days

Day: 9.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 61,968,553 km

• M1: 112,198 km (0.115 R)
• M2: 418,126 km (0.052 R)
• M3: 824,284 km (0.08 R)
• M4: 1,166,115 km (0.099 R)
• M5: 1,462,618 km (0.086 R)
• M6: 2,130,423 km (0.056 R)
• M7: 2,968,022 km (0.03 R)
• M8: 3,372,385 km (0.108 R)
• M9: 5,493,832 km (0.111 R)
• M10: 6,105,538 km (0.079 R)
• M11: 6,620,005 km (0.104 R)
• M12: 8,462,452 km (0.055 R)
• M13: 9,102,282 km (0.063 R)
• M14: 9,501,410 km (0.117 R)
• M15: 10,818,619 km (0.041 R)
• M16: 12,576,693 km (0.094 R)
• M17: 12,905,659 km (0.117 R)
• M18: 13,353,256 km (0.071 R)
• M19: 15,748,168 km (0.065 R)
• M20: 16,130,540 km (0.117 R)
• M21: 17,585,978 km (0.07 R)
• M22: 19,416,457 km (0.12 R)
• M23: 25,490,729 km (0.1 R)
• M24: 28,670,881 km (0.099 R)
• M25: 29,145,854 km (0.057 R)
• M26: 30,503,604 km (0.05 R)
• M27: 33,764,389 km (0.054 R)
• M28: 34,614,554 km (0.067 R)
• M29: 36,579,372 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 247.4

Radius: 7.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 12.72 AU - 20.48 AU

Year: 24460 Days

Day: 23.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 61,968,553 km

• M1: 90,806 km (0.049 R)
• M2: 422,464 km (0.084 R)
• M3: 967,749 km (0.082 R)
• M4: 1,295,218 km (0.106 R)
• M5: 1,599,949 km (0.119 R)
• M6: 2,061,907 km (0.1 R)
• M7: 3,199,749 km (0.12 R)
• M8: 4,324,276 km (0.113 R)
• M9: 5,149,009 km (0.089 R)
• M10: 6,272,190 km (0.072 R)
• M11: 7,150,030 km (0.101 R)
• M12: 8,395,881 km (0.03 R)
• M13: 8,641,521 km (0.085 R)
• M14: 10,726,317 km (0.08 R)
• M15: 11,015,789 km (0.067 R)
• M16: 28,560,777 km (0.067 R)
• M17: 29,117,430 km (0.064 R)
• M18: 32,010,354 km (0.111 R)
• M19: 34,709,997 km (0.071 R)
• M20: 35,343,993 km (0.118 R)
• M21: 41,402,108 km (0.081 R)
• M22: 42,115,092 km (0.117 R)
• M23: 48,747,214 km (0.034 R)
• M24: 56,042,654 km (0.071 R)
• M25: 57,619,415 km (0.092 R)
• M26: 58,866,164 km (0.111 R)
• M27: 59,225,647 km (0.041 R)
• M28: 60,861,351 km (0.118 R)

Kuiper Belt

Range: 30.3 - 60.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 11,138 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit