🌌 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: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.79 AU - 0.79 AU

Year: 254 Days

Day: 15.7 Hours

Environment

Temp: 134 °C

Axial Tilt: 13 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.73 AU - 0.87 AU

Year: 259 Days

Day: 40.8 Hours

Environment

Temp: 189 °C

Axial Tilt: 4.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.67 AU - 3.07 AU

Year: 1758 Days

Day: 30.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.06 AU - 3.96 AU

Year: 2378 Days

Day: 47.1 Hours

Environment

Temp: -103 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.08 AU - 4.86 AU

Year: 2861 Days

Day: 34.5 Hours

Environment

Temp: -122 °C

Axial Tilt: 47 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.2 AU - 4.76 AU

Year: 2872 Days

Day: 16.1 Hours

Environment

Temp: -111 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 19.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.7

Radius: 4.1

Gravity: 36.45 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 15.38 AU - 23.4 AU

Year: 30879 Days

Day: 20.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 97,931,816 km

• M1: 51,013 km (0.107 R)
• M2: 308,172 km (0.062 R)
• M3: 701,315 km (0.04 R)
• M4: 944,561 km (0.117 R)
• M5: 1,305,092 km (0.098 R)
• M6: 1,472,941 km (0.092 R)
• M7: 1,791,285 km (0.115 R)
• M8: 2,563,808 km (0.066 R)
• M9: 2,855,524 km (0.042 R)
• M10: 3,932,180 km (0.064 R)
• M11: 4,356,440 km (0.092 R)
• M12: 5,946,964 km (0.116 R)
• M13: 7,671,379 km (0.082 R)
• M14: 7,997,203 km (0.086 R)
• M15: 9,271,029 km (0.108 R)
• M16: 11,637,218 km (0.111 R)
• M17: 11,922,651 km (0.098 R)
• M18: 13,342,933 km (0.074 R)
• M19: 15,123,746 km (0.056 R)
• M20: 19,446,526 km (0.12 R)
• M21: 28,063,663 km (0.086 R)
• M22: 30,287,884 km (0.054 R)
• M23: 34,494,875 km (0.042 R)
• M24: 35,979,335 km (0.098 R)
• M25: 46,144,211 km (0.085 R)
• M26: 48,126,981 km (0.118 R)
• M27: 49,978,255 km (0.087 R)
• M28: 52,068,885 km (0.039 R)
• M29: 77,268,048 km (0.034 R)
• M30: 77,519,073 km (0.055 R)
• M31: 77,770,547 km (0.08 R)
• M32: 80,315,806 km (0.12 R)
• M33: 80,573,264 km (0.095 R)
• M34: 86,379,307 km (0.094 R)
• M35: 92,175,626 km (0.096 R)
• M36: 95,890,739 km (0.115 R)
• M37: 96,470,880 km (0.096 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 467 - 13,412 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit