🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.69 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.27 AU - 1.49 AU

Year: 470 Days

Day: 32.1 Hours

Environment

Temp: 161 °C

Axial Tilt: 87.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,987,995 km

• M1: 48,619 km (0.07 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.55 AU - 2.59 AU

Year: 863 Days

Day: 26 Hours

Environment

Temp: 152 °C

Axial Tilt: 50 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.72 AU - 2.82 AU

Year: 991 Days

Day: 31.7 Hours

Environment

Temp: 24 °C

Axial Tilt: 8.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.13 AU - 3.07 AU

Year: 1214 Days

Day: 32.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 36.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 63,987,995 km

• M1: 142,567 km (0.119 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.59

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.7 AU - 3.44 AU

Year: 1558 Days

Day: 29.5 Hours

Environment

Temp: -12 °C

Axial Tilt: 22.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 63,987,995 km

• M1: 39,643 km (0.079 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.99 AU - 4.27 AU

Year: 2003 Days

Day: 41.9 Hours

Environment

Temp: -45 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.6 AU - 4.68 AU

Year: 2440 Days

Day: 40.8 Hours

Environment

Temp: -50 °C

Axial Tilt: 24.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 63,987,995 km

• M1: 155,582 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 17.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.4

Radius: 12.4

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 15.96 AU - 19.04 AU

Year: 21206 Days

Day: 5.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,987,995 km

• M1: 155,133 km (0.035 R)
• M2: 634,893 km (0.05 R)
• M3: 1,200,224 km (0.104 R)
• M4: 5,229,493 km (0.104 R)
• M5: 7,527,166 km (0.101 R)
• M6: 8,424,155 km (0.101 R)
• M7: 12,999,457 km (0.119 R)
• M8: 14,643,238 km (0.114 R)
• M9: 21,768,884 km (0.029 R)
• M10: 32,837,181 km (0.088 R)
• M11: 35,093,267 km (0.12 R)
• M12: 44,400,798 km (0.115 R)
• M13: 60,602,696 km (0.101 R)

Kuiper Belt

Range: 37.8 - 52.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 421 - 11,262 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit