🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.45 AU - 0.63 AU

Year: 149 Days

Day: 20.7 Hours

Environment

Temp: 156 °C

Axial Tilt: 20.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,678,116 km

• M1: 175,777 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.55 AU - 0.65 AU

Year: 175 Days

Day: 12.6 Hours

Environment

Temp: 132 °C

Axial Tilt: 41.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,678,116 km

• M1: 43,683 km (0.038 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.79 AU - 1.27 AU

Year: 394 Days

Day: 22.6 Hours

Environment

Temp: 14 °C

Axial Tilt: 16.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.08 AU - 1.14 AU

Year: 441 Days

Day: 14.7 Hours

Environment

Temp: 10 °C

Axial Tilt: 36.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.09 AU - 1.37 AU

Year: 514 Days

Day: 37.5 Hours

Environment

Temp: -23 °C

Axial Tilt: 11.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.95 AU - 3.09 AU

Year: 1507 Days

Day: 26.4 Hours

Environment

Temp: -87 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,678,116 km

• M1: 199,115 km (0.075 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.06 AU - 4.66 AU

Year: 2857 Days

Day: 33.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 11.35 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 18.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 212.3

Radius: 7

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 14.28 AU - 23.4 AU

Year: 30807 Days

Day: 16.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,678,116 km

• M1: 88,113 km (0.115 R)
• M2: 309,368 km (0.119 R)
• M3: 557,551 km (0.112 R)
• M4: 1,224,459 km (0.079 R)
• M5: 1,452,147 km (0.05 R)
• M6: 1,794,726 km (0.097 R)
• M7: 2,014,036 km (0.064 R)
• M8: 2,507,410 km (0.09 R)
• M9: 2,735,696 km (0.031 R)
• M10: 4,814,359 km (0.1 R)
• M11: 6,421,189 km (0.034 R)
• M12: 8,305,823 km (0.108 R)
• M13: 10,768,055 km (0.066 R)
• M14: 12,004,182 km (0.108 R)
• M15: 13,194,981 km (0.094 R)
• M16: 14,318,012 km (0.086 R)
• M17: 15,051,341 km (0.076 R)
• M18: 16,276,548 km (0.114 R)
• M19: 16,832,902 km (0.082 R)
• M20: 17,899,684 km (0.087 R)
• M21: 19,896,517 km (0.093 R)
• M22: 21,088,363 km (0.062 R)
• M23: 22,521,959 km (0.086 R)
• M24: 27,657,056 km (0.115 R)
• M25: 29,255,958 km (0.066 R)
• M26: 41,324,766 km (0.088 R)
• M27: 43,411,208 km (0.111 R)
• M28: 43,714,742 km (0.091 R)
• M29: 44,019,921 km (0.064 R)
• M30: 51,775,225 km (0.043 R)
• M31: 66,238,347 km (0.109 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 202 - 19,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit