🌌 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: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.58 AU - 0.78 AU

Year: 206 Days

Day: 46 Hours

Environment

Temp: 183 °C

Axial Tilt: 44.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.6 AU - 0.8 AU

Year: 215 Days

Day: 37.6 Hours

Environment

Temp: 125 °C

Axial Tilt: 31.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.65 AU - 0.89 AU

Year: 248 Days

Day: 33.9 Hours

Environment

Temp: 169 °C

Axial Tilt: 45.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 113,509,681 km

• M1: 33,211 km (0.092 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.01 AU - 1.57 AU

Year: 538 Days

Day: 34.6 Hours

Environment

Temp: -0 °C

Axial Tilt: 3.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.68 AU - 2.24 AU

Year: 1007 Days

Day: 13.7 Hours

Environment

Temp: -58 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 113,509,681 km

• M1: 26,928 km (0.099 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.55 AU - 5.77 AU

Year: 3693 Days

Day: 33.4 Hours

Environment

Temp: -126 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.1 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299

Radius: 11.3

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 4.67 AU - 6.41 AU

Year: 4787 Days

Day: 13 Hours

Environment

Temp: -148 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 113,509,681 km

• M1: 143,315 km (0.115 R)
• M2: 529,128 km (0.087 R)
• M3: 1,104,780 km (0.115 R)
• M4: 1,935,348 km (0.108 R)
• M5: 3,859,176 km (0.066 R)
• M6: 4,727,592 km (0.112 R)
• M7: 5,183,566 km (0.115 R)
• M8: 6,045,549 km (0.087 R)
• M9: 8,289,966 km (0.105 R)
• M10: 9,063,237 km (0.039 R)
• M11: 10,511,794 km (0.103 R)
• M12: 12,109,050 km (0.094 R)
• M13: 12,464,943 km (0.116 R)
• M14: 13,910,807 km (0.105 R)
• M15: 14,799,867 km (0.06 R)
• M16: 17,188,646 km (0.043 R)
• M17: 18,270,388 km (0.107 R)
• M18: 20,256,300 km (0.062 R)
• M19: 21,140,872 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936.1

Radius: 6.6

Gravity: 21.49 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 18.45 AU - 20.19 AU

Year: 31173 Days

Day: 20.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 113,509,681 km

• M1: 89,310 km (0.06 R)
• M2: 435,031 km (0.068 R)
• M3: 835,803 km (0.084 R)
• M4: 1,289,833 km (0.079 R)
• M5: 2,735,547 km (0.081 R)
• M6: 5,242,957 km (0.062 R)
• M7: 6,111,522 km (0.111 R)
• M8: 6,454,699 km (0.095 R)
• M9: 6,758,832 km (0.077 R)
• M10: 7,506,073 km (0.082 R)
• M11: 11,340,117 km (0.118 R)
• M12: 12,626,210 km (0.053 R)
• M13: 13,022,345 km (0.12 R)
• M14: 14,260,567 km (0.12 R)
• M15: 15,128,384 km (0.069 R)
• M16: 15,847,650 km (0.115 R)
• M17: 19,056,674 km (0.072 R)
• M18: 19,368,287 km (0.096 R)
• M19: 19,789,106 km (0.082 R)
• M20: 20,540,087 km (0.116 R)
• M21: 20,867,706 km (0.111 R)
• M22: 24,095,729 km (0.053 R)
• M23: 27,907,483 km (0.052 R)
• M24: 29,262,391 km (0.086 R)
• M25: 29,538,548 km (0.086 R)
• M26: 36,539,878 km (0.11 R)
• M27: 38,160,023 km (0.086 R)
• M28: 42,066,921 km (0.065 R)
• M29: 42,418,775 km (0.084 R)
• M30: 43,486,007 km (0.036 R)
• M31: 50,070,856 km (0.051 R)
• M32: 56,218,880 km (0.108 R)
• M33: 57,939,555 km (0.107 R)
• M34: 58,157,070 km (0.085 R)
• M35: 69,005,907 km (0.112 R)
• M36: 78,173,115 km (0.086 R)
• M37: 79,239,150 km (0.101 R)
• M38: 85,276,321 km (0.093 R)
• M39: 89,854,764 km (0.069 R)
• M40: 97,025,289 km (0.083 R)
• M41: 113,169,742 km (0.104 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: 155 - 17,154 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit