🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.8 AU - 1.06 AU

Year: 321 Days

Day: 44.7 Hours

Environment

Temp: 131 °C

Axial Tilt: 25 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.13 AU - 1.81 AU

Year: 638 Days

Day: 45.7 Hours

Environment

Temp: -9 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 43,029,321 km

• M1: 634,893 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 2.13 AU - 2.27 AU

Year: 1169 Days

Day: 14.5 Hours

Environment

Temp: -65 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.94

Radius: 0.98

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.29 AU - 2.89 AU

Year: 1493 Days

Day: 26.5 Hours

Environment

Temp: -86 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,029,321 km

• M1: 67,319 km (0.105 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.27 AU - 3.75 AU

Year: 1870 Days

Day: 33.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.65 AU - 5.57 AU

Year: 3545 Days

Day: 43.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.2

Radius: 10.9

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.65 AU - 8.31 AU

Year: 8074 Days

Day: 8.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 43,029,321 km

• M1: 135,536 km (0.074 R)
• M2: 685,158 km (0.046 R)
• M3: 1,139,038 km (0.063 R)
• M4: 1,806,693 km (0.118 R)
• M5: 2,308,295 km (0.054 R)
• M6: 3,157,263 km (0.105 R)
• M7: 3,522,132 km (0.098 R)
• M8: 4,096,588 km (0.097 R)
• M9: 4,849,664 km (0.037 R)
• M10: 5,758,770 km (0.089 R)
• M11: 6,557,623 km (0.082 R)
• M12: 7,079,121 km (0.078 R)
• M13: 8,332,751 km (0.063 R)
• M14: 10,358,306 km (0.043 R)
• M15: 10,912,117 km (0.07 R)
• M16: 11,327,252 km (0.108 R)
• M17: 11,806,862 km (0.097 R)
• M18: 12,806,775 km (0.115 R)
• M19: 13,982,913 km (0.046 R)
• M20: 16,549,115 km (0.066 R)
• M21: 17,236,816 km (0.112 R)
• M22: 20,647,797 km (0.093 R)
• M23: 22,014,972 km (0.045 R)
• M24: 22,762,662 km (0.117 R)
• M25: 30,476,377 km (0.11 R)
• M26: 31,093,469 km (0.032 R)
• M27: 33,427,644 km (0.094 R)
• M28: 36,334,032 km (0.081 R)
• M29: 37,027,867 km (0.091 R)
• M30: 37,730,528 km (0.084 R)
• M31: 40,014,438 km (0.112 R)
• M32: 42,772,425 km (0.104 R)

Kuiper Belt

Range: 30.6 - 58.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 18,642 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit