🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.51 AU - 0.55 AU

Year: 136 Days

Day: 20.3 Hours

Environment

Temp: 241 °C

Axial Tilt: 14.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.44 AU - 0.72 AU

Year: 156 Days

Day: 20.3 Hours

Environment

Temp: 168 °C

Axial Tilt: 35.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 29,801,607 km

• M1: 39,943 km (0.047 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.72 AU - 0.86 AU

Year: 248 Days

Day: 40.8 Hours

Environment

Temp: 114 °C

Axial Tilt: 33.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 29,801,607 km

• M1: 72,854 km (0.102 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.76 AU - 1.12 AU

Year: 322 Days

Day: 27.4 Hours

Environment

Temp: 132 °C

Axial Tilt: 9.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.68 AU - 1.92 AU

Year: 853 Days

Day: 40.8 Hours

Environment

Temp: -51 °C

Axial Tilt: 26.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,801,607 km

• M1: 65,524 km (0.069 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.27 AU - 3.05 AU

Year: 1532 Days

Day: 25.2 Hours

Environment

Temp: -79 °C

Axial Tilt: 14.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,801,607 km

• M1: 1,959,882 km (0.117 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.23 AU - 3.81 AU

Year: 2332 Days

Day: 42.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 16.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 30.1

Radius: 6.5

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 13.73 AU - 19.01 AU

Year: 23387 Days

Day: 17.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,801,607 km

• M1: 164,109 km (0.066 R)
• M2: 585,376 km (0.084 R)
• M3: 1,912,459 km (0.083 R)
• M4: 2,735,397 km (0.075 R)
• M5: 3,245,975 km (0.041 R)
• M6: 4,657,580 km (0.068 R)
• M7: 6,247,207 km (0.07 R)
• M8: 8,093,095 km (0.114 R)
• M9: 8,664,409 km (0.078 R)
• M10: 10,539,469 km (0.119 R)
• M11: 12,519,247 km (0.08 R)
• M12: 21,174,681 km (0.05 R)
• M13: 24,064,164 km (0.059 R)

Kuiper Belt

Range: 31.1 - 49.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 17,895 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit