🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.41 AU - 0.63 AU

Year: 242 Days

Day: 22.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,476,376 km

• M1: 44,580 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.9

Radius: 11.7

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.59 AU - 0.99 AU

Year: 453 Days

Day: 10.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,476,376 km

• M1: 149,598 km (0.112 R)
• M2: 515,365 km (0.074 R)
• M3: 981,960 km (0.033 R)
• M4: 1,408,614 km (0.074 R)
• M5: 1,937,292 km (0.11 R)
• M6: 2,700,391 km (0.064 R)
• M7: 3,388,093 km (0.104 R)
• M8: 4,347,913 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.2

Radius: 14.4

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.08 AU - 1.34 AU

Year: 859 Days

Day: 8.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,476,376 km

• M1: 179,218 km (0.092 R)
• M2: 646,412 km (0.107 R)
• M3: 1,324,988 km (0.1 R)
• M4: 1,832,724 km (0.117 R)
• M5: 2,497,985 km (0.117 R)
• M6: 2,948,125 km (0.109 R)
• M7: 3,520,187 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.7

Radius: 9.4

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.24 AU - 1.78 AU

Year: 1198 Days

Day: 11.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,476,376 km

• M1: 117,135 km (0.119 R)
• M2: 475,123 km (0.094 R)
• M3: 779,106 km (0.073 R)
• M4: 1,161,328 km (0.105 R)
• M5: 1,595,012 km (0.119 R)
• M6: 2,179,043 km (0.076 R)
• M7: 2,596,720 km (0.08 R)
• M8: 3,330,946 km (0.106 R)
• M9: 3,641,661 km (0.101 R)
• M10: 4,250,524 km (0.114 R)
• M11: 5,085,131 km (0.07 R)
• M12: 5,541,554 km (0.065 R)
• M13: 5,935,146 km (0.05 R)
• M14: 6,300,614 km (0.084 R)
• M15: 6,632,571 km (0.109 R)
• M16: 7,969,827 km (0.11 R)
• M17: 8,274,258 km (0.08 R)
• M18: 9,356,000 km (0.065 R)
• M19: 10,074,369 km (0.088 R)
• M20: 11,869,544 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.5

Radius: 13.9

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.22 AU - 5.34 AU

Year: 5717 Days

Day: 15 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,476,376 km

• M1: 172,935 km (0.12 R)
• M2: 611,107 km (0.109 R)
• M3: 1,062,893 km (0.102 R)
• M4: 1,598,603 km (0.063 R)
• M5: 2,884,097 km (0.112 R)
• M6: 4,705,751 km (0.118 R)
• M7: 5,836,411 km (0.062 R)
• M8: 7,669,434 km (0.119 R)
• M9: 8,358,482 km (0.075 R)
• M10: 9,160,326 km (0.096 R)
• M11: 10,127,776 km (0.098 R)
• M12: 11,747,921 km (0.062 R)
• M13: 13,960,772 km (0.11 R)
• M14: 14,740,177 km (0.118 R)
• M15: 15,241,929 km (0.072 R)
• M16: 16,761,693 km (0.087 R)
• M17: 18,669,665 km (0.097 R)
• M18: 20,594,092 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 14,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit