🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.56 AU - 0.58 AU

Year: 153 Days

Day: 14.8 Hours

Environment

Temp: 258 °C

Axial Tilt: 16.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.65 AU - 0.79 AU

Year: 218 Days

Day: 29.4 Hours

Environment

Temp: 167 °C

Axial Tilt: 31.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.16 AU - 1.34 AU

Year: 498 Days

Day: 20.6 Hours

Environment

Temp: 25 °C

Axial Tilt: 33.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 19,268,995 km

• M1: 406,757 km (0.077 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.48 AU - 1.68 AU

Year: 708 Days

Day: 14.1 Hours

Environment

Temp: -28 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 19,268,995 km

• M1: 340,485 km (0.057 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.66 AU - 3.06 AU

Year: 1724 Days

Day: 27.4 Hours

Environment

Temp: -85 °C

Axial Tilt: 65.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.55 AU - 3.23 AU

Year: 1751 Days

Day: 31.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 48.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.25 AU - 3.77 AU

Year: 2344 Days

Day: 41 Hours

Environment

Temp: -116 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 3.39 AU - 4.53 AU

Year: 2809 Days

Day: 47.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 31.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 19,268,995 km

• M1: 371,302 km (0.077 R)
• M2: 1,546,543 km (0.038 R)

Planet 9 - Gas Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.7

Radius: 11.7

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 6.52 AU - 10.04 AU

Year: 8493 Days

Day: 11.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (53)

Outer Limit: 19,268,995 km

• M1: 148,700 km (0.109 R)
• M2: 235,168 km (0.087 R)
• M3: 310,116 km (0.083 R)
• M4: 469,737 km (0.083 R)
• M5: 586,424 km (0.092 R)
• M6: 833,709 km (0.08 R)
• M7: 1,073,066 km (0.08 R)
• M8: 1,201,420 km (0.086 R)
• M9: 1,301,202 km (0.077 R)
• M10: 1,998,927 km (0.075 R)
• M11: 2,535,983 km (0.042 R)
• M12: 2,680,794 km (0.071 R)
• M13: 2,813,637 km (0.105 R)
• M14: 2,903,395 km (0.026 R)
• M15: 3,131,981 km (0.095 R)
• M16: 3,209,622 km (0.047 R)
• M17: 3,382,557 km (0.082 R)
• M18: 3,462,144 km (0.075 R)
• M19: 3,623,410 km (0.066 R)
• M20: 3,820,281 km (0.107 R)
• M21: 4,139,223 km (0.075 R)
• M22: 4,397,280 km (0.105 R)
• M23: 4,519,501 km (0.115 R)
• M24: 4,642,770 km (0.041 R)
• M25: 4,731,631 km (0.112 R)
• M26: 5,147,663 km (0.069 R)
• M27: 5,746,054 km (0.092 R)
• M28: 5,899,093 km (0.049 R)
• M29: 6,825,702 km (0.096 R)
• M30: 7,420,054 km (0.077 R)
• M31: 7,797,340 km (0.098 R)
• M32: 8,680,117 km (0.109 R)
• M33: 8,767,931 km (0.11 R)
• M34: 8,856,194 km (0.078 R)
• M35: 9,867,924 km (0.105 R)
• M36: 10,143,932 km (0.094 R)
• M37: 10,282,909 km (0.074 R)
• M38: 10,892,520 km (0.114 R)
• M39: 11,058,574 km (0.109 R)
• M40: 11,201,739 km (0.087 R)
• M41: 11,297,482 km (0.114 R)
• M42: 11,707,380 km (0.079 R)
• M43: 11,975,160 km (0.111 R)
• M44: 12,393,136 km (0.108 R)
• M45: 12,616,336 km (0.048 R)
• M46: 13,142,323 km (0.062 R)
• M47: 13,218,019 km (0.096 R)
• M48: 13,547,882 km (0.1 R)
• M49: 14,894,413 km (0.117 R)
• M50: 16,636,929 km (0.108 R)
• M51: 17,880,835 km (0.117 R)
• M52: 18,076,958 km (0.066 R)
• M53: 19,039,919 km (0.082 R)

Kuiper Belt

Range: 30.8 - 58.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 10,662 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit