🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.6 AU - 0.6 AU

Year: 167 Days

Day: 43.6 Hours

Environment

Temp: 238 °C

Axial Tilt: 22.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.63 AU - 0.99 AU

Year: 262 Days

Day: 38.1 Hours

Environment

Temp: 147 °C

Axial Tilt: 19.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.05 AU - 1.43 AU

Year: 497 Days

Day: 26.8 Hours

Environment

Temp: -3 °C

Axial Tilt: 45.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 40,294,879 km

• M1: 279,449 km (0.117 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.64 AU - 1.8 AU

Year: 812 Days

Day: 14.5 Hours

Environment

Temp: -52 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.83 AU - 2.99 AU

Year: 1787 Days

Day: 13 Hours

Environment

Temp: -105 °C

Axial Tilt: 43.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,294,879 km

• M1: 22,888 km (0.067 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.61 AU - 4.25 AU

Year: 2804 Days

Day: 13.4 Hours

Environment

Temp: -112 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 4.1 AU - 4.82 AU

Year: 3390 Days

Day: 21.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.74 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.1

Radius: 8.7

Gravity: 12.05 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.58 AU - 8.44 AU

Year: 6680 Days

Day: 10.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 63 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 40,294,879 km

• M1: 108,159 km (0.094 R)
• M2: 379,530 km (0.114 R)
• M3: 663,766 km (0.048 R)
• M4: 943,963 km (0.072 R)
• M5: 2,078,513 km (0.101 R)
• M6: 3,001,232 km (0.094 R)
• M7: 3,578,381 km (0.081 R)
• M8: 4,019,844 km (0.105 R)
• M9: 4,442,309 km (0.093 R)
• M10: 4,749,882 km (0.085 R)
• M11: 6,124,986 km (0.106 R)
• M12: 6,685,379 km (0.042 R)
• M13: 9,095,850 km (0.093 R)
• M14: 10,061,354 km (0.106 R)
• M15: 10,642,841 km (0.08 R)
• M16: 11,557,034 km (0.046 R)
• M17: 13,540,851 km (0.039 R)
• M18: 14,983,124 km (0.108 R)
• M19: 15,485,923 km (0.093 R)
• M20: 15,870,389 km (0.044 R)
• M21: 16,458,907 km (0.109 R)
• M22: 17,541,098 km (0.117 R)
• M23: 18,383,334 km (0.06 R)
• M24: 23,169,569 km (0.096 R)
• M25: 24,097,524 km (0.103 R)
• M26: 24,700,852 km (0.12 R)
• M27: 25,758,509 km (0.108 R)
• M28: 26,571,275 km (0.116 R)
• M29: 30,692,247 km (0.036 R)
• M30: 32,328,549 km (0.096 R)
• M31: 34,672,149 km (0.092 R)
• M32: 36,559,027 km (0.076 R)
• M33: 38,047,526 km (0.062 R)

Kuiper Belt

Range: 30.5 - 49.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 19,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit