🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.49 AU - 0.53 AU

Year: 128 Days

Day: 34.7 Hours

Environment

Temp: 220 °C

Axial Tilt: 7.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.61 AU - 0.63 AU

Year: 172 Days

Day: 36.6 Hours

Environment

Temp: 235 °C

Axial Tilt: 138.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.44 AU - 1.48 AU

Year: 620 Days

Day: 15.7 Hours

Environment

Temp: 12 °C

Axial Tilt: 146.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 73,046,656 km

• M1: 55,950 km (0.051 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.05 AU - 2.23 AU

Year: 1100 Days

Day: 47.3 Hours

Environment

Temp: -54 °C

Axial Tilt: 12 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.53

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 4.93 AU - 5.23 AU

Year: 4024 Days

Day: 29.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 44.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.26 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211

Radius: 12

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.61 AU - 10.27 AU

Year: 10194 Days

Day: 13.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,046,656 km

• M1: 149,448 km (0.104 R)
• M2: 541,245 km (0.027 R)
• M3: 928,853 km (0.042 R)
• M4: 3,388,841 km (0.081 R)
• M5: 4,303,033 km (0.082 R)
• M6: 5,609,322 km (0.102 R)
• M7: 9,237,519 km (0.101 R)
• M8: 10,187,316 km (0.111 R)
• M9: 11,153,718 km (0.076 R)
• M10: 12,029,763 km (0.099 R)
• M11: 15,697,903 km (0.069 R)
• M12: 21,716,524 km (0.075 R)
• M13: 22,850,028 km (0.118 R)
• M14: 26,149,558 km (0.077 R)
• M15: 27,693,857 km (0.084 R)
• M16: 29,662,715 km (0.114 R)
• M17: 30,122,878 km (0.095 R)
• M18: 31,341,651 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 596.9

Radius: 6.1

Gravity: 16.04 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 13.53 AU - 16.21 AU

Year: 20153 Days

Day: 24.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 73,046,656 km

• M1: 76,445 km (0.094 R)
• M2: 276,158 km (0.107 R)
• M3: 608,714 km (0.11 R)
• M4: 821,442 km (0.102 R)
• M5: 1,148,912 km (0.099 R)
• M6: 1,949,260 km (0.099 R)
• M7: 2,249,802 km (0.112 R)
• M8: 2,746,168 km (0.118 R)
• M9: 3,020,531 km (0.083 R)
• M10: 4,305,277 km (0.066 R)
• M11: 5,796,917 km (0.104 R)
• M12: 7,318,477 km (0.099 R)
• M13: 8,452,280 km (0.069 R)
• M14: 8,713,478 km (0.077 R)
• M15: 12,084,366 km (0.102 R)
• M16: 13,167,305 km (0.08 R)
• M17: 15,602,310 km (0.1 R)
• M18: 15,837,478 km (0.091 R)
• M19: 16,234,959 km (0.067 R)
• M20: 18,936,996 km (0.108 R)
• M21: 20,959,410 km (0.071 R)
• M22: 21,438,422 km (0.052 R)
• M23: 23,223,274 km (0.112 R)
• M24: 25,212,328 km (0.103 R)
• M25: 31,480,179 km (0.086 R)
• M26: 35,239,723 km (0.06 R)
• M27: 36,053,236 km (0.099 R)
• M28: 38,855,504 km (0.116 R)
• M29: 61,071,984 km (0.101 R)
• M30: 65,242,923 km (0.073 R)
• M31: 68,126,571 km (0.097 R)
• M32: 68,965,815 km (0.095 R)
• M33: 70,237,696 km (0.105 R)

Kuiper Belt

Range: 31.2 - 49.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 18,994 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit