🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.55 AU - 0.79 AU

Year: 197 Days

Day: 15.9 Hours

Environment

Temp: 127 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.71 AU - 0.73 AU

Year: 220 Days

Day: 16.8 Hours

Environment

Temp: 144 °C

Axial Tilt: 0.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.07 AU - 1.25 AU

Year: 450 Days

Day: 32.3 Hours

Environment

Temp: 32 °C

Axial Tilt: 33.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 57,682,292 km

• M1: 24,684 km (0.056 R)
• M2: 47,273 km (0.074 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.34 AU - 2.14 AU

Year: 826 Days

Day: 19.2 Hours

Environment

Temp: -38 °C

Axial Tilt: 9.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.74 AU - 1.9 AU

Year: 884 Days

Day: 21.3 Hours

Environment

Temp: -55 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,682,292 km

• M1: 416,780 km (0.09 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.3 AU - 3.74 AU

Year: 2377 Days

Day: 19.5 Hours

Environment

Temp: -101 °C

Axial Tilt: 46.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,682,292 km

• M1: 40,541 km (0.081 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.76 AU - 4.86 AU

Year: 3797 Days

Day: 46.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 141.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.5

Radius: 13.1

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.84 AU - 11.34 AU

Year: 9863 Days

Day: 8 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,682,292 km

• M1: 162,912 km (0.065 R)
• M2: 628,760 km (0.058 R)
• M3: 2,405,085 km (0.106 R)
• M4: 2,879,909 km (0.116 R)
• M5: 4,607,764 km (0.12 R)
• M6: 5,186,857 km (0.034 R)
• M7: 6,093,121 km (0.039 R)
• M8: 9,888,718 km (0.108 R)
• M9: 10,339,008 km (0.11 R)
• M10: 11,443,489 km (0.063 R)
• M11: 12,279,442 km (0.1 R)
• M12: 15,629,387 km (0.061 R)
• M13: 16,940,612 km (0.11 R)
• M14: 17,586,726 km (0.057 R)
• M15: 21,814,810 km (0.1 R)
• M16: 23,539,225 km (0.119 R)
• M17: 25,260,199 km (0.042 R)
• M18: 26,389,364 km (0.089 R)
• M19: 30,083,234 km (0.082 R)
• M20: 33,321,131 km (0.051 R)
• M21: 33,769,625 km (0.072 R)
• M22: 38,112,302 km (0.119 R)
• M23: 41,248,920 km (0.061 R)
• M24: 43,477,480 km (0.034 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.6

Radius: 9

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 8.21 AU - 13.43 AU

Year: 12809 Days

Day: 13.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,682,292 km

• M1: 114,592 km (0.073 R)
• M2: 513,121 km (0.068 R)
• M3: 1,000,660 km (0.091 R)
• M4: 2,775,639 km (0.104 R)
• M5: 3,659,912 km (0.059 R)
• M6: 4,226,738 km (0.064 R)
• M7: 5,219,320 km (0.113 R)
• M8: 6,518,578 km (0.079 R)
• M9: 6,843,654 km (0.093 R)
• M10: 7,222,136 km (0.068 R)
• M11: 7,659,261 km (0.097 R)
• M12: 8,634,340 km (0.041 R)
• M13: 9,380,086 km (0.058 R)
• M14: 9,690,202 km (0.119 R)
• M15: 10,385,533 km (0.101 R)
• M16: 13,308,227 km (0.119 R)
• M17: 13,766,295 km (0.052 R)
• M18: 15,560,123 km (0.07 R)
• M19: 18,616,109 km (0.062 R)
• M20: 19,272,095 km (0.078 R)
• M21: 20,113,583 km (0.066 R)
• M22: 20,629,995 km (0.068 R)
• M23: 22,599,900 km (0.108 R)
• M24: 23,630,480 km (0.068 R)
• M25: 30,934,296 km (0.108 R)
• M26: 31,277,324 km (0.112 R)
• M27: 34,478,420 km (0.084 R)
• M28: 40,971,416 km (0.052 R)
• M29: 44,649,579 km (0.111 R)
• M30: 45,676,119 km (0.102 R)
• M31: 47,321,098 km (0.114 R)

Kuiper Belt

Range: 30.5 - 51.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 13,771 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit