🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.5 AU - 0.56 AU

Year: 249 Days

Day: 24.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 8.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.2

Radius: 10.7

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.85 AU - 0.91 AU

Year: 533 Days

Day: 7.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,408,538 km

• M1: 135,536 km (0.072 R)
• M2: 561,291 km (0.106 R)
• M3: 934,987 km (0.05 R)
• M4: 1,505,852 km (0.034 R)
• M5: 1,988,604 km (0.113 R)
• M6: 2,601,956 km (0.098 R)
• M7: 3,027,711 km (0.086 R)
• M8: 3,406,344 km (0.083 R)
• M9: 4,007,877 km (0.09 R)
• M10: 4,479,858 km (0.045 R)
• M11: 5,034,268 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 13.3

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.93 AU - 1.37 AU

Year: 796 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,408,538 km

• M1: 165,455 km (0.092 R)
• M2: 586,424 km (0.113 R)
• M3: 1,033,272 km (0.111 R)
• M4: 1,522,607 km (0.117 R)
• M5: 2,157,949 km (0.074 R)
• M6: 2,767,561 km (0.045 R)
• M7: 4,728,489 km (0.105 R)
• M8: 5,546,191 km (0.078 R)
• M9: 6,051,533 km (0.11 R)
• M10: 6,565,551 km (0.095 R)
• M11: 9,222,559 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.7

Radius: 14.8

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.22 AU - 1.68 AU

Year: 1127 Days

Day: 11.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,408,538 km

• M1: 184,005 km (0.091 R)
• M2: 671,545 km (0.038 R)
• M3: 1,167,911 km (0.081 R)
• M4: 1,771,837 km (0.114 R)
• M5: 2,326,995 km (0.07 R)
• M6: 2,939,449 km (0.062 R)
• M7: 3,485,032 km (0.06 R)
• M8: 4,292,860 km (0.03 R)
• M9: 4,932,092 km (0.111 R)
• M10: 5,597,803 km (0.079 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 324.1

Radius: 6

Gravity: 9 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 9.29 AU - 9.81 AU

Year: 19055 Days

Day: 21.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,408,538 km

• M1: 74,649 km (0.11 R)
• M2: 264,339 km (0.103 R)
• M3: 455,526 km (0.084 R)
• M4: 685,158 km (0.073 R)
• M5: 1,190,649 km (0.093 R)
• M6: 1,546,543 km (0.029 R)
• M7: 2,368,134 km (0.101 R)
• M8: 3,321,073 km (0.091 R)
• M9: 3,554,745 km (0.039 R)
• M10: 4,055,149 km (0.104 R)
• M11: 5,092,910 km (0.117 R)
• M12: 6,656,058 km (0.101 R)
• M13: 7,070,743 km (0.105 R)
• M14: 8,514,064 km (0.096 R)
• M15: 9,823,195 km (0.066 R)
• M16: 15,174,909 km (0.068 R)
• M17: 17,473,480 km (0.101 R)
• M18: 19,073,579 km (0.059 R)
• M19: 21,385,315 km (0.114 R)
• M20: 25,143,662 km (0.1 R)
• M21: 25,742,802 km (0.099 R)
• M22: 39,013,030 km (0.093 R)
• M23: 46,789,128 km (0.099 R)
• M24: 52,401,741 km (0.102 R)
• M25: 54,367,905 km (0.058 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 392 - 12,596 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit