🌌 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: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.46 AU - 0.66 AU

Year: 153 Days

Day: 19 Hours

Environment

Temp: 241 °C

Axial Tilt: 35 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 1,944,211 km

• M1: 52,808 km (0.074 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.51 AU - 0.73 AU

Year: 178 Days

Day: 28.9 Hours

Environment

Temp: 204 °C

Axial Tilt: 24 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.64 AU - 0.7 AU

Year: 200 Days

Day: 25.4 Hours

Environment

Temp: 150 °C

Axial Tilt: 146.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.9 AU - 0.92 AU

Year: 317 Days

Day: 20.5 Hours

Environment

Temp: 71 °C

Axial Tilt: 27.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 1,944,211 km

• M1: 78,688 km (0.111 R)
• M2: 270,174 km (0.053 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.83 AU - 1.17 AU

Year: 365 Days

Day: 15 Hours

Environment

Temp: 31 °C

Axial Tilt: 22.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 1,944,211 km

• M1: 312,959 km (0.087 R)
• M2: 790,924 km (0.072 R)

Asteroid Belt

Center: 1.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.36 AU - 1.88 AU

Year: 753 Days

Day: 32.5 Hours

Environment

Temp: -42 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.86 AU - 2.16 AU

Year: 1041 Days

Day: 35.2 Hours

Environment

Temp: -70 °C

Axial Tilt: 32.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 1,944,211 km

• M1: 517,609 km (0.068 R)
• M2: 693,835 km (0.118 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.75 AU - 2.57 AU

Year: 1160 Days

Day: 42.7 Hours

Environment

Temp: -80 °C

Axial Tilt: 5.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 16,538 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit