🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1 AU - 1 AU

Year: 356 Days

Day: 40.4 Hours

Environment

Temp: 119 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.98 AU - 1.34 AU

Year: 445 Days

Day: 15.5 Hours

Environment

Temp: 28 °C

Axial Tilt: 15 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 18,123,192 km

• M1: 860,188 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.81 AU - 2.37 AU

Year: 1077 Days

Day: 16.9 Hours

Environment

Temp: -60 °C

Axial Tilt: 17.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.55 AU - 4.05 AU

Year: 2640 Days

Day: 15.6 Hours

Environment

Temp: -121 °C

Axial Tilt: 41.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.53 AU - 4.59 AU

Year: 3471 Days

Day: 35 Hours

Environment

Temp: -124 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,123,192 km

• M1: 350,358 km (0.118 R)

Planet 6 - Terrestrial

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.48 AU - 5.7 AU

Year: 4093 Days

Day: 18.4 Hours

Environment

Temp: -124 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 18,123,192 km

• M1: 60,587 km (0.072 R)
• M2: 317,147 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.1

Radius: 13.8

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.09 AU - 5.45 AU

Year: 4312 Days

Day: 5.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 18,123,192 km

• M1: 171,888 km (0.119 R)
• M2: 1,196,035 km (0.065 R)
• M3: 2,023,461 km (0.089 R)
• M4: 2,609,436 km (0.062 R)
• M5: 3,223,984 km (0.073 R)
• M6: 3,802,479 km (0.087 R)
• M7: 4,326,969 km (0.108 R)
• M8: 4,877,489 km (0.089 R)
• M9: 5,941,579 km (0.094 R)
• M10: 7,012,550 km (0.118 R)
• M11: 7,866,754 km (0.092 R)
• M12: 8,955,377 km (0.12 R)
• M13: 9,641,284 km (0.072 R)
• M14: 11,274,144 km (0.107 R)
• M15: 11,952,122 km (0.08 R)
• M16: 12,784,335 km (0.107 R)
• M17: 14,518,174 km (0.053 R)
• M18: 16,353,740 km (0.113 R)
• M19: 17,537,209 km (0.081 R)

Kuiper Belt

Range: 30.8 - 53.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 264 - 11,510 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit