🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.56 AU - 0.82 AU

Year: 201 Days

Day: 37.6 Hours

Environment

Temp: 175 °C

Axial Tilt: 19.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.03 AU - 1.07 AU

Year: 378 Days

Day: 42.6 Hours

Environment

Temp: 156 °C

Axial Tilt: 27.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.05 AU - 1.71 AU

Year: 570 Days

Day: 43.6 Hours

Environment

Temp: 11 °C

Axial Tilt: 38.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.38 AU - 1.84 AU

Year: 718 Days

Day: 17.6 Hours

Environment

Temp: -30 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.26 AU - 4.74 AU

Year: 2812 Days

Day: 45.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,478,235 km

• M1: 114,592 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.84 AU - 4.54 AU

Year: 3014 Days

Day: 28.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 3.89 AU - 5.75 AU

Year: 3719 Days

Day: 13.2 Hours

Environment

Temp: -126 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.15 AU - 6.29 AU

Year: 4192 Days

Day: 36.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,478,235 km

• M1: 44,281 km (0.083 R)

Asteroid Belt

Center: 5.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111

Radius: 13.9

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 5.3 AU - 7.8 AU

Year: 5892 Days

Day: 6 Hours

Environment

Temp: -142 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,478,235 km

• M1: 172,935 km (0.101 R)
• M2: 699,220 km (0.065 R)
• M3: 1,743,862 km (0.092 R)
• M4: 2,287,052 km (0.05 R)
• M5: 3,053,442 km (0.119 R)
• M6: 4,572,010 km (0.095 R)
• M7: 5,123,129 km (0.099 R)
• M8: 5,595,708 km (0.043 R)
• M9: 6,045,998 km (0.097 R)
• M10: 6,767,060 km (0.1 R)
• M11: 9,452,641 km (0.115 R)
• M12: 10,021,412 km (0.093 R)
• M13: 14,431,856 km (0.088 R)
• M14: 17,718,521 km (0.051 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 709.8

Radius: 4.3

Gravity: 38.39 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 12.16 AU - 14.54 AU

Year: 17144 Days

Day: 20.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,478,235 km

• M1: 54,753 km (0.075 R)
• M2: 216,767 km (0.089 R)
• M3: 485,894 km (0.06 R)
• M4: 854,802 km (0.097 R)
• M5: 2,202,829 km (0.051 R)
• M6: 2,525,810 km (0.096 R)
• M7: 2,686,927 km (0.095 R)
• M8: 3,346,804 km (0.036 R)
• M9: 4,046,323 km (0.036 R)
• M10: 4,299,742 km (0.098 R)
• M11: 5,015,568 km (0.054 R)
• M12: 5,160,379 km (0.102 R)
• M13: 6,007,701 km (0.12 R)
• M14: 8,022,784 km (0.077 R)
• M15: 9,101,235 km (0.077 R)
• M16: 11,107,343 km (0.109 R)
• M17: 11,921,903 km (0.1 R)
• M18: 13,669,206 km (0.066 R)
• M19: 14,457,288 km (0.065 R)
• M20: 17,166,056 km (0.092 R)
• M21: 25,111,947 km (0.101 R)
• M22: 26,950,056 km (0.082 R)
• M23: 27,958,496 km (0.096 R)
• M24: 33,380,670 km (0.066 R)
• M25: 36,676,012 km (0.115 R)
• M26: 45,927,743 km (0.117 R)
• M27: 49,161,002 km (0.112 R)
• M28: 57,166,283 km (0.117 R)
• M29: 69,270,097 km (0.075 R)
• M30: 69,478,188 km (0.067 R)

Kuiper Belt

Range: 31.2 - 46.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 11,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit