🌌 Stone's Star System Generator

Asteroid Belt

Center: 1 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.96 AU - 2.02 AU

Year: 1015 Days

Day: 19.9 Hours

Environment

Temp: -67 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.12 AU - 2.96 AU

Year: 1464 Days

Day: 17.7 Hours

Environment

Temp: -89 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.55 AU - 3.69 AU

Year: 1993 Days

Day: 35.5 Hours

Environment

Temp: -99 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.48 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.7

Radius: 13.4

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.44 AU - 7.22 AU

Year: 5091 Days

Day: 14.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,273,519 km

• M1: 166,652 km (0.077 R)
• M2: 909,555 km (0.059 R)
• M3: 1,455,886 km (0.113 R)
• M4: 1,977,385 km (0.047 R)
• M5: 4,221,951 km (0.049 R)
• M6: 6,692,560 km (0.08 R)
• M7: 8,095,040 km (0.097 R)
• M8: 9,372,307 km (0.036 R)
• M9: 10,041,308 km (0.099 R)
• M10: 15,603,208 km (0.072 R)
• M11: 16,342,819 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.8

Radius: 9.7

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 7.23 AU - 10.41 AU

Year: 9473 Days

Day: 9.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,273,519 km

• M1: 121,473 km (0.087 R)
• M2: 513,719 km (0.079 R)
• M3: 1,201,121 km (0.117 R)
• M4: 1,850,376 km (0.098 R)
• M5: 2,557,076 km (0.097 R)
• M6: 3,022,176 km (0.105 R)
• M7: 3,434,169 km (0.112 R)
• M8: 4,683,610 km (0.114 R)
• M9: 5,470,645 km (0.088 R)
• M10: 5,958,633 km (0.082 R)
• M11: 6,542,064 km (0.089 R)
• M12: 7,785,073 km (0.083 R)
• M13: 13,408,308 km (0.095 R)
• M14: 14,126,826 km (0.08 R)
• M15: 15,282,320 km (0.117 R)
• M16: 16,624,662 km (0.105 R)
• M17: 17,067,920 km (0.093 R)
• M18: 20,683,551 km (0.084 R)
• M19: 23,968,870 km (0.072 R)
• M20: 25,358,485 km (0.097 R)

Planet 6 - Ice Giant

Semi-Major Axis: 16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.3

Radius: 8

Gravity: 9.74 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 15.7 AU - 16.3 AU

Year: 23146 Days

Day: 20.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,273,519 km

• M1: 99,483 km (0.101 R)
• M2: 395,986 km (0.106 R)
• M3: 851,212 km (0.09 R)
• M4: 1,113,158 km (0.108 R)
• M5: 1,413,999 km (0.097 R)
• M6: 2,402,542 km (0.049 R)
• M7: 2,963,983 km (0.11 R)
• M8: 3,375,227 km (0.08 R)
• M9: 3,950,281 km (0.05 R)
• M10: 4,211,180 km (0.103 R)
• M11: 9,020,752 km (0.049 R)
• M12: 10,064,646 km (0.062 R)
• M13: 11,382,004 km (0.071 R)
• M14: 11,912,927 km (0.094 R)
• M15: 20,493,562 km (0.088 R)
• M16: 22,084,685 km (0.071 R)
• M17: 22,701,926 km (0.103 R)
• M18: 23,436,750 km (0.096 R)
• M19: 26,190,398 km (0.099 R)
• M20: 26,534,623 km (0.117 R)
• M21: 34,895,648 km (0.117 R)
• M22: 46,012,266 km (0.065 R)
• M23: 46,513,718 km (0.119 R)
• M24: 47,698,084 km (0.034 R)
• M25: 50,480,156 km (0.085 R)
• M26: 53,185,035 km (0.116 R)
• M27: 55,606,127 km (0.115 R)
• M28: 60,267,148 km (0.113 R)
• M29: 74,184,836 km (0.091 R)

Kuiper Belt

Range: 30.3 - 54.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 15,409 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit