🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.82 AU - 0.82 AU

Year: 286 Days

Day: 44.8 Hours

Environment

Temp: 28 °C

Axial Tilt: 0.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.75 AU - 0.95 AU

Year: 302 Days

Day: 31.9 Hours

Environment

Temp: 38 °C

Axial Tilt: 24.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 66,915,296 km

• M1: 36,352 km (0.089 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.78 AU - 1 AU

Year: 323 Days

Day: 25.1 Hours

Environment

Temp: 10 °C

Axial Tilt: 2.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.94 AU - 0.96 AU

Year: 356 Days

Day: 34.3 Hours

Environment

Temp: 23 °C

Axial Tilt: 138.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.89 AU - 1.03 AU

Year: 362 Days

Day: 18.5 Hours

Environment

Temp: 3 °C

Axial Tilt: 31.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.73 AU - 1.81 AU

Year: 907 Days

Day: 31.8 Hours

Environment

Temp: -73 °C

Axial Tilt: 63.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.95 AU - 2.39 AU

Year: 1231 Days

Day: 33.9 Hours

Environment

Temp: -101 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,915,296 km

• M1: 43,234 km (0.041 R)

Asteroid Belt

Center: 7.99 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 13.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 478.4

Radius: 7.8

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 11.98 AU - 15.62 AU

Year: 19737 Days

Day: 23.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,915,296 km

• M1: 100,081 km (0.081 R)
• M2: 402,717 km (0.038 R)
• M3: 789,278 km (0.04 R)
• M4: 1,218,026 km (0.079 R)
• M5: 1,517,222 km (0.086 R)
• M6: 1,955,693 km (0.094 R)
• M7: 2,348,687 km (0.093 R)
• M8: 3,011,256 km (0.073 R)
• M9: 3,999,948 km (0.057 R)
• M10: 5,597,055 km (0.105 R)
• M11: 6,685,978 km (0.08 R)
• M12: 7,034,241 km (0.098 R)
• M13: 8,250,472 km (0.074 R)
• M14: 8,549,967 km (0.037 R)
• M15: 9,012,823 km (0.12 R)
• M16: 9,492,134 km (0.105 R)
• M17: 10,044,749 km (0.101 R)
• M18: 10,854,074 km (0.045 R)
• M19: 12,020,937 km (0.05 R)
• M20: 14,172,005 km (0.087 R)
• M21: 14,747,358 km (0.103 R)
• M22: 15,488,316 km (0.108 R)
• M23: 15,791,551 km (0.065 R)
• M24: 17,044,583 km (0.116 R)
• M25: 19,046,203 km (0.09 R)
• M26: 27,173,406 km (0.088 R)
• M27: 28,285,965 km (0.098 R)
• M28: 29,660,770 km (0.117 R)
• M29: 32,543,072 km (0.075 R)
• M30: 34,565,186 km (0.119 R)
• M31: 42,153,987 km (0.065 R)
• M32: 45,167,636 km (0.106 R)
• M33: 47,520,063 km (0.041 R)
• M34: 52,127,677 km (0.108 R)
• M35: 65,918,058 km (0.079 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 164 - 13,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit