🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.49 AU - 0.69 AU

Year: 195 Days

Day: 30.3 Hours

Environment

Temp: 37 °C

Axial Tilt: 25.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 29,784,916 km

• M1: 56,847 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.54 AU - 0.88 AU

Year: 258 Days

Day: 20.2 Hours

Environment

Temp: -9 °C

Axial Tilt: 9.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.85 AU - 1.19 AU

Year: 443 Days

Day: 12.1 Hours

Environment

Temp: -55 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,784,916 km

• M1: 1,051,374 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.9

Radius: 0.96

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.79 AU - 1.29 AU

Year: 457 Days

Day: 19.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.99 AU - 1.57 AU

Year: 623 Days

Day: 27.8 Hours

Environment

Temp: -69 °C

Axial Tilt: 49.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 29,784,916 km

• M1: 420,370 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.3

Radius: 13.7

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.7 AU - 3.42 AU

Year: 2304 Days

Day: 5 Hours

Environment

Temp: -140 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,784,916 km

• M1: 171,888 km (0.107 R)
• M2: 688,898 km (0.097 R)
• M3: 1,141,881 km (0.105 R)
• M4: 1,695,542 km (0.077 R)
• M5: 2,320,413 km (0.103 R)
• M6: 3,397,068 km (0.074 R)
• M7: 4,098,084 km (0.081 R)
• M8: 4,547,027 km (0.069 R)
• M9: 6,252,593 km (0.073 R)
• M10: 10,886,536 km (0.116 R)
• M11: 11,592,937 km (0.08 R)
• M12: 13,493,130 km (0.093 R)
• M13: 16,849,807 km (0.042 R)
• M14: 17,582,387 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34.8

Radius: 3.8

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 13.33 AU - 13.99 AU

Year: 21732 Days

Day: 16.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,784,916 km

• M1: 47,273 km (0.111 R)
• M2: 220,657 km (0.115 R)
• M3: 967,898 km (0.11 R)
• M4: 5,641,934 km (0.117 R)
• M5: 5,939,933 km (0.085 R)
• M6: 20,381,812 km (0.119 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 19,279 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit