🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.54 AU - 0.58 AU

Year: 156 Days

Day: 40.5 Hours

Environment

Temp: 206 °C

Axial Tilt: 22.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.83 AU - 1.17 AU

Year: 373 Days

Day: 38.6 Hours

Environment

Temp: 7 °C

Axial Tilt: 42.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.73 AU - 1.83 AU

Year: 885 Days

Day: 32.7 Hours

Environment

Temp: -55 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 70,323,804 km

• M1: 63,130 km (0.08 R)
• M2: 765,792 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 2.47 AU - 3.65 AU

Year: 1995 Days

Day: 18.8 Hours

Environment

Temp: -107 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 3.29 AU - 3.37 AU

Year: 2265 Days

Day: 19.8 Hours

Environment

Temp: -111 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 70,323,804 km

• M1: 123,418 km (0.079 R)
• M2: 1,290,132 km (0.046 R)

Asteroid Belt

Center: 8.33 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 13.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.2

Radius: 4.5

Gravity: 32.45 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 12.68 AU - 13.98 AU

Year: 18143 Days

Day: 17.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 70,323,804 km

• M1: 55,950 km (0.09 R)
• M2: 240,703 km (0.085 R)
• M3: 432,487 km (0.067 R)
• M4: 609,761 km (0.044 R)
• M5: 979,567 km (0.085 R)
• M6: 1,665,473 km (0.106 R)
• M7: 2,315,625 km (0.113 R)
• M8: 3,334,387 km (0.066 R)
• M9: 3,972,871 km (0.104 R)
• M10: 5,005,994 km (0.112 R)
• M11: 5,839,852 km (0.088 R)
• M12: 6,041,660 km (0.091 R)
• M13: 6,544,907 km (0.113 R)
• M14: 8,998,462 km (0.085 R)
• M15: 13,206,500 km (0.106 R)
• M16: 16,883,915 km (0.099 R)
• M17: 17,293,663 km (0.052 R)
• M18: 17,878,442 km (0.057 R)
• M19: 20,627,153 km (0.118 R)
• M20: 22,150,358 km (0.088 R)
• M21: 23,747,016 km (0.098 R)
• M22: 26,502,460 km (0.083 R)
• M23: 27,391,370 km (0.072 R)
• M24: 30,057,354 km (0.06 R)
• M25: 30,538,012 km (0.046 R)
• M26: 33,273,558 km (0.114 R)
• M27: 35,097,007 km (0.097 R)
• M28: 37,537,696 km (0.075 R)
• M29: 38,235,121 km (0.066 R)
• M30: 38,799,405 km (0.101 R)
• M31: 38,941,373 km (0.091 R)
• M32: 40,525,315 km (0.076 R)
• M33: 41,703,997 km (0.049 R)
• M34: 49,093,384 km (0.113 R)
• M35: 53,709,076 km (0.109 R)
• M36: 57,125,144 km (0.104 R)
• M37: 58,792,562 km (0.1 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 10,744 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit