🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.6 AU - 0.66 AU

Year: 180 Days

Day: 39.3 Hours

Environment

Temp: 147 °C

Axial Tilt: 29.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.9 AU - 1.06 AU

Year: 349 Days

Day: 22.3 Hours

Environment

Temp: 126 °C

Axial Tilt: 14.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 69,368,197 km

• M1: 85,271 km (0.05 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.87 AU - 1.37 AU

Year: 427 Days

Day: 15.2 Hours

Environment

Temp: 27 °C

Axial Tilt: 11.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.83 AU - 1.89 AU

Year: 913 Days

Day: 26.9 Hours

Environment

Temp: -47 °C

Axial Tilt: 106.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.11 AU - 2.15 AU

Year: 1119 Days

Day: 22 Hours

Environment

Temp: -75 °C

Axial Tilt: 20.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.28 AU - 2.4 AU

Year: 1288 Days

Day: 20.2 Hours

Environment

Temp: -73 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.27 AU - 5.31 AU

Year: 3773 Days

Day: 35.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 23 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.4

Radius: 8.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.82 AU - 6.78 AU

Year: 5691 Days

Day: 12.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,368,197 km

• M1: 108,159 km (0.076 R)
• M2: 446,550 km (0.037 R)
• M3: 720,314 km (0.055 R)
• M4: 1,208,302 km (0.096 R)
• M5: 2,243,968 km (0.066 R)
• M6: 2,875,570 km (0.068 R)
• M7: 3,602,766 km (0.081 R)
• M8: 4,365,565 km (0.101 R)
• M9: 7,389,088 km (0.115 R)
• M10: 9,243,353 km (0.098 R)
• M11: 11,041,669 km (0.101 R)
• M12: 14,158,840 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 276.7

Radius: 4

Gravity: 17.29 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 14.66 AU - 21.26 AU

Year: 27392 Days

Day: 16.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,368,197 km

• M1: 49,816 km (0.101 R)
• M2: 188,344 km (0.111 R)
• M3: 402,418 km (0.075 R)
• M4: 1,119,890 km (0.069 R)
• M5: 1,884,185 km (0.115 R)
• M6: 3,532,604 km (0.075 R)
• M7: 4,419,869 km (0.075 R)
• M8: 5,561,002 km (0.109 R)
• M9: 9,190,994 km (0.066 R)
• M10: 9,852,815 km (0.092 R)
• M11: 11,025,662 km (0.104 R)
• M12: 11,209,219 km (0.056 R)
• M13: 22,623,985 km (0.105 R)
• M14: 29,060,134 km (0.114 R)
• M15: 51,429,803 km (0.116 R)
• M16: 63,119,381 km (0.067 R)
• M17: 64,694,347 km (0.087 R)
• M18: 68,953,099 km (0.075 R)

Kuiper Belt

Range: 30.5 - 48.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 15,966 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit