🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.64 AU - 0.64 AU

Year: 192 Days

Day: 44.2 Hours

Environment

Temp: 132 °C

Axial Tilt: 6.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.75 AU - 0.83 AU

Year: 263 Days

Day: 38.3 Hours

Environment

Temp: 145 °C

Axial Tilt: 10.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 35,887,457 km

• M1: 37,998 km (0.076 R)
• M2: 612,753 km (0.109 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.98 AU - 1.56 AU

Year: 536 Days

Day: 34.7 Hours

Environment

Temp: -24 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,887,457 km

• M1: 1,114,055 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.19 AU - 1.35 AU

Year: 536 Days

Day: 13.3 Hours

Environment

Temp: -25 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 35,887,457 km

• M1: 327,619 km (0.038 R)
• M2: 431,590 km (0.088 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.24 AU - 1.6 AU

Year: 634 Days

Day: 33.7 Hours

Environment

Temp: -41 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.8 AU - 2.9 AU

Year: 1803 Days

Day: 35.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.68 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.5

Radius: 10.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.64 AU - 7.36 AU

Year: 6210 Days

Day: 8.5 Hours

Environment

Temp: -149 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,887,457 km

• M1: 157,527 km (0.083 R)
• M2: 2,100,354 km (0.117 R)
• M3: 3,600,522 km (0.036 R)
• M4: 5,459,425 km (0.091 R)
• M5: 6,209,209 km (0.083 R)
• M6: 8,497,309 km (0.085 R)
• M7: 8,931,890 km (0.087 R)
• M8: 11,966,782 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.6

Radius: 9.7

Gravity: 5.64 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.4 AU - 8.16 AU

Year: 7361 Days

Day: 9.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,887,457 km

• M1: 158,574 km (0.115 R)
• M2: 633,846 km (0.1 R)
• M3: 1,947,016 km (0.028 R)
• M4: 3,315,089 km (0.06 R)
• M5: 3,929,637 km (0.109 R)
• M6: 4,672,390 km (0.076 R)
• M7: 7,099,167 km (0.071 R)
• M8: 7,962,795 km (0.082 R)
• M9: 11,416,562 km (0.112 R)
• M10: 15,209,765 km (0.062 R)
• M11: 16,196,213 km (0.106 R)
• M12: 21,777,261 km (0.054 R)
• M13: 25,080,981 km (0.094 R)
• M14: 29,169,191 km (0.118 R)
• M15: 31,272,986 km (0.084 R)
• M16: 32,966,434 km (0.106 R)
• M17: 33,681,063 km (0.081 R)
• M18: 33,990,581 km (0.063 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 14,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit