🌌 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: 0.58 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.54 AU - 0.62 AU

Year: 189 Days

Day: 14.1 Hours

Environment

Temp: 41 °C

Axial Tilt: 3.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.55 AU - 0.65 AU

Year: 199 Days

Day: 39.8 Hours

Environment

Temp: 22 °C

Axial Tilt: 39.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 76,805,640 km

• M1: 167,699 km (0.119 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.55 AU - 0.87 AU

Year: 256 Days

Day: 12.5 Hours

Environment

Temp: -4 °C

Axial Tilt: 28.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.13 AU - 1.21 AU

Year: 541 Days

Day: 21.1 Hours

Environment

Temp: -71 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.75 AU - 2.67 AU

Year: 1404 Days

Day: 46.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 13.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 654

Radius: 3.7

Gravity: 47.77 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 12.46 AU - 14.16 AU

Year: 20758 Days

Day: 20.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 76,805,640 km

• M1: 46,076 km (0.09 R)
• M2: 188,793 km (0.069 R)
• M3: 378,483 km (0.088 R)
• M4: 852,259 km (0.038 R)
• M5: 1,067,830 km (0.064 R)
• M6: 1,274,424 km (0.083 R)
• M7: 2,036,775 km (0.114 R)
• M8: 2,445,177 km (0.118 R)
• M9: 2,705,477 km (0.068 R)
• M10: 3,687,288 km (0.071 R)
• M11: 4,158,970 km (0.102 R)
• M12: 4,669,698 km (0.098 R)
• M13: 4,995,522 km (0.05 R)
• M14: 5,145,120 km (0.091 R)
• M15: 8,695,227 km (0.113 R)
• M16: 9,756,624 km (0.084 R)
• M17: 10,228,306 km (0.118 R)
• M18: 11,603,559 km (0.062 R)
• M19: 12,471,825 km (0.081 R)
• M20: 15,492,355 km (0.112 R)
• M21: 19,331,037 km (0.117 R)
• M22: 20,262,583 km (0.084 R)
• M23: 23,339,811 km (0.114 R)
• M24: 26,374,553 km (0.117 R)
• M25: 29,055,946 km (0.063 R)
• M26: 29,662,116 km (0.11 R)
• M27: 31,024,953 km (0.047 R)
• M28: 32,949,829 km (0.063 R)
• M29: 36,192,961 km (0.118 R)
• M30: 37,891,495 km (0.047 R)
• M31: 41,446,539 km (0.037 R)
• M32: 42,214,126 km (0.102 R)
• M33: 42,368,810 km (0.11 R)
• M34: 43,777,722 km (0.063 R)
• M35: 44,573,733 km (0.112 R)
• M36: 46,194,775 km (0.111 R)
• M37: 47,019,808 km (0.105 R)
• M38: 51,468,998 km (0.039 R)
• M39: 57,889,888 km (0.107 R)
• M40: 60,994,941 km (0.057 R)
• M41: 66,483,239 km (0.105 R)
• M42: 71,410,544 km (0.114 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 247 - 19,394 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit