🌌 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: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.51 AU - 0.57 AU

Year: 252 Days

Day: 28.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 7.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.54 AU - 0.58 AU

Year: 266 Days

Day: 23.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 17.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.9

Radius: 15

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.72 AU - 0.96 AU

Year: 489 Days

Day: 12.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,375,581 km

• M1: 186,549 km (0.078 R)
• M2: 765,642 km (0.107 R)
• M3: 1,281,605 km (0.058 R)
• M4: 1,761,066 km (0.063 R)
• M5: 2,248,157 km (0.118 R)
• M6: 2,847,147 km (0.103 R)
• M7: 3,339,324 km (0.065 R)
• M8: 4,005,782 km (0.101 R)
• M9: 4,541,492 km (0.05 R)
• M10: 5,047,582 km (0.068 R)
• M11: 5,657,941 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.5

Radius: 12.6

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.28 AU - 1.84 AU

Year: 1239 Days

Day: 13.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 22,375,581 km

• M1: 156,629 km (0.099 R)
• M2: 592,856 km (0.084 R)
• M3: 1,099,993 km (0.09 R)
• M4: 1,564,644 km (0.108 R)
• M5: 2,592,082 km (0.073 R)
• M6: 3,912,882 km (0.091 R)
• M7: 4,452,781 km (0.059 R)
• M8: 5,256,271 km (0.111 R)
• M9: 5,703,568 km (0.111 R)
• M10: 6,815,978 km (0.106 R)
• M11: 8,444,501 km (0.056 R)
• M12: 9,233,330 km (0.12 R)
• M13: 9,645,772 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 875.7

Radius: 9

Gravity: 10.81 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.2 AU - 3.2 AU

Year: 2821 Days

Day: 10.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 22,375,581 km

• M1: 116,686 km (0.041 R)
• M2: 400,922 km (0.09 R)
• M3: 749,785 km (0.115 R)
• M4: 1,050,177 km (0.091 R)
• M5: 1,392,307 km (0.096 R)
• M6: 2,264,912 km (0.094 R)
• M7: 3,047,907 km (0.077 R)
• M8: 5,115,798 km (0.082 R)
• M9: 5,443,717 km (0.085 R)
• M10: 6,396,955 km (0.05 R)
• M11: 6,778,130 km (0.062 R)
• M12: 8,526,031 km (0.109 R)
• M13: 9,243,802 km (0.086 R)
• M14: 9,731,641 km (0.097 R)
• M15: 11,047,204 km (0.033 R)
• M16: 11,468,173 km (0.085 R)
• M17: 11,987,577 km (0.109 R)
• M18: 15,026,807 km (0.119 R)
• M19: 15,860,067 km (0.067 R)
• M20: 17,055,653 km (0.09 R)
• M21: 18,193,644 km (0.085 R)
• M22: 18,840,805 km (0.102 R)
• M23: 21,779,804 km (0.074 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 13,076 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit