🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.71 AU - 0.89 AU

Year: 317 Days

Day: 18.1 Hours

Environment

Temp: -35 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.98 AU - 1.2 AU

Year: 504 Days

Day: 35.5 Hours

Environment

Temp: -72 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.2 AU - 1.3 AU

Year: 619 Days

Day: 31.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.06 AU - 1.52 AU

Year: 649 Days

Day: 45.8 Hours

Environment

Temp: -96 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,507,078 km

• M1: 124,615 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.04 AU - 1.6 AU

Year: 672 Days

Day: 46.4 Hours

Environment

Temp: -100 °C

Axial Tilt: 42 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.44 AU - 1.52 AU

Year: 797 Days

Day: 44.7 Hours

Environment

Temp: -106 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.29 AU - 1.83 AU

Year: 863 Days

Day: 21.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 4.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 23,507,078 km

• M1: 43,683 km (0.08 R)

Planet 8 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.63 AU - 1.69 AU

Year: 947 Days

Day: 35.1 Hours

Environment

Temp: -107 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 23,507,078 km

• M1: 45,029 km (0.059 R)
• M2: 487,539 km (0.117 R)

Asteroid Belt

Center: 2.23 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.2

Radius: 12.6

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.11 AU - 3.49 AU

Year: 2075 Days

Day: 11.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,507,078 km

• M1: 157,227 km (0.07 R)
• M2: 621,878 km (0.075 R)
• M3: 1,187,657 km (0.086 R)
• M4: 1,606,831 km (0.083 R)
• M5: 2,712,509 km (0.118 R)
• M6: 3,150,681 km (0.073 R)
• M7: 3,878,474 km (0.12 R)
• M8: 4,759,456 km (0.062 R)
• M9: 5,620,392 km (0.108 R)
• M10: 7,682,000 km (0.045 R)
• M11: 8,211,876 km (0.067 R)
• M12: 9,590,869 km (0.072 R)
• M13: 12,504,736 km (0.087 R)
• M14: 13,956,883 km (0.05 R)
• M15: 15,274,840 km (0.119 R)
• M16: 16,164,948 km (0.099 R)
• M17: 18,652,162 km (0.077 R)

Planet 10 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 8.3

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 4.16 AU - 4.7 AU

Year: 4130 Days

Day: 12.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 23,507,078 km

• M1: 103,223 km (0.114 R)
• M2: 793,766 km (0.12 R)
• M3: 1,072,617 km (0.088 R)
• M4: 1,491,491 km (0.084 R)
• M5: 1,899,893 km (0.1 R)
• M6: 2,411,069 km (0.095 R)
• M7: 2,740,334 km (0.037 R)
• M8: 3,567,760 km (0.045 R)
• M9: 4,414,633 km (0.069 R)
• M10: 5,260,160 km (0.06 R)
• M11: 7,237,246 km (0.042 R)
• M12: 9,320,396 km (0.085 R)
• M13: 9,819,604 km (0.099 R)
• M14: 11,598,473 km (0.062 R)
• M15: 12,772,816 km (0.074 R)
• M16: 14,024,352 km (0.101 R)
• M17: 17,856,301 km (0.115 R)
• M18: 18,149,812 km (0.086 R)
• M19: 19,294,984 km (0.107 R)
• M20: 20,296,093 km (0.066 R)
• M21: 21,397,283 km (0.099 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: 210 - 19,796 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit