🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.08 AU - 1.22 AU

Year: 375 Days

Day: 24.4 Hours

Environment

Temp: 232 °C

Axial Tilt: 21.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.31 AU - 1.47 AU

Year: 499 Days

Day: 44.1 Hours

Environment

Temp: 175 °C

Axial Tilt: 18.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 74,749,832 km

• M1: 165,455 km (0.057 R)
• M2: 784,940 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.41 AU - 1.93 AU

Year: 657 Days

Day: 18.5 Hours

Environment

Temp: 98 °C

Axial Tilt: 44.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.9 AU - 2.08 AU

Year: 854 Days

Day: 40.6 Hours

Environment

Temp: 23 °C

Axial Tilt: 8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 74,749,832 km

• M1: 234,270 km (0.096 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.78 AU - 2.32 AU

Year: 893 Days

Day: 42.8 Hours

Environment

Temp: 10 °C

Axial Tilt: 31.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 2.35 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.92 AU - 2.78 AU

Year: 1097 Days

Day: 23.9 Hours

Environment

Temp: -3 °C

Axial Tilt: 32.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.37 AU - 3.71 AU

Year: 1613 Days

Day: 13.3 Hours

Environment

Temp: -43 °C

Axial Tilt: 43.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,749,832 km

• M1: 563,535 km (0.06 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.77 AU - 4.73 AU

Year: 2667 Days

Day: 25.6 Hours

Environment

Temp: -81 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,749,832 km

• M1: 793,018 km (0.107 R)

Asteroid Belt

Center: 9.94 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 15.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.8

Radius: 10.2

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 13.25 AU - 17.99 AU

Year: 18790 Days

Day: 13.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,749,832 km

• M1: 142,118 km (0.089 R)
• M2: 646,861 km (0.096 R)
• M3: 1,046,736 km (0.086 R)
• M4: 2,042,609 km (0.082 R)
• M5: 3,845,712 km (0.07 R)
• M6: 4,286,577 km (0.1 R)
• M7: 4,656,383 km (0.117 R)
• M8: 6,059,911 km (0.06 R)
• M9: 6,570,638 km (0.107 R)
• M10: 7,874,383 km (0.091 R)
• M11: 8,225,789 km (0.087 R)
• M12: 9,794,621 km (0.1 R)
• M13: 11,489,864 km (0.114 R)
• M14: 13,091,908 km (0.067 R)
• M15: 14,913,861 km (0.049 R)
• M16: 15,530,952 km (0.089 R)
• M17: 16,407,146 km (0.098 R)
• M18: 18,084,288 km (0.082 R)
• M19: 18,786,052 km (0.042 R)
• M20: 20,431,628 km (0.106 R)
• M21: 23,487,314 km (0.063 R)
• M22: 24,428,584 km (0.091 R)
• M23: 27,632,971 km (0.039 R)
• M24: 32,626,548 km (0.109 R)
• M25: 33,143,857 km (0.112 R)
• M26: 33,535,355 km (0.114 R)
• M27: 46,931,994 km (0.051 R)
• M28: 47,923,229 km (0.074 R)
• M29: 50,634,391 km (0.078 R)
• M30: 51,153,945 km (0.112 R)
• M31: 55,438,727 km (0.108 R)
• M32: 58,234,861 km (0.105 R)
• M33: 67,603,278 km (0.064 R)
• M34: 68,655,400 km (0.032 R)
• M35: 69,504,966 km (0.073 R)
• M36: 74,749,867 km (0.103 R)

Kuiper Belt

Range: 36 - 65 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 12,734 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit