🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.68 AU - 0.9 AU

Year: 245 Days

Day: 39.1 Hours

Environment

Temp: 190 °C

Axial Tilt: 89.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.95 AU - 1.35 AU

Year: 429 Days

Day: 32.3 Hours

Environment

Temp: 45 °C

Axial Tilt: 7.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 47,182,018 km

• M1: 472,280 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.39 AU - 2.63 AU

Year: 1385 Days

Day: 31 Hours

Environment

Temp: -72 °C

Axial Tilt: 21.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,182,018 km

• M1: 13,314 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.41 AU - 2.87 AU

Year: 1494 Days

Day: 42.2 Hours

Environment

Temp: -68 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,182,018 km

• M1: 39,494 km (0.054 R)
• M2: 494,271 km (0.081 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.86 AU - 2.96 AU

Year: 1729 Days

Day: 26 Hours

Environment

Temp: -77 °C

Axial Tilt: 111.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,182,018 km

• M1: 86,767 km (0.096 R)

Planet 6 - Terrestrial

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.51 AU - 5.79 AU

Year: 4070 Days

Day: 23.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.2

Radius: 14.4

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.07 AU - 10.11 AU

Year: 9544 Days

Day: 5.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,182,018 km

• M1: 179,069 km (0.071 R)
• M2: 750,981 km (0.082 R)
• M3: 1,267,094 km (0.117 R)
• M4: 1,822,551 km (0.077 R)
• M5: 2,579,217 km (0.09 R)
• M6: 4,635,888 km (0.114 R)
• M7: 5,248,342 km (0.096 R)
• M8: 6,196,643 km (0.101 R)
• M9: 7,621,563 km (0.092 R)
• M10: 8,792,316 km (0.056 R)
• M11: 9,255,321 km (0.116 R)
• M12: 9,881,687 km (0.092 R)
• M13: 10,743,221 km (0.114 R)
• M14: 11,654,422 km (0.054 R)
• M15: 15,619,962 km (0.066 R)
• M16: 19,614,525 km (0.051 R)
• M17: 21,721,162 km (0.051 R)
• M18: 23,618,362 km (0.118 R)
• M19: 29,351,551 km (0.103 R)
• M20: 30,600,095 km (0.052 R)
• M21: 37,259,145 km (0.076 R)
• M22: 38,108,262 km (0.095 R)
• M23: 40,733,256 km (0.117 R)
• M24: 42,024,735 km (0.101 R)
• M25: 43,077,455 km (0.11 R)
• M26: 47,041,200 km (0.107 R)

Kuiper Belt

Range: 31.5 - 47.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 14,442 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit