🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.45 AU - 0.75 AU

Year: 305 Days

Day: 17 Hours

Environment

Temp: -126 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 9,776,707 km

• M1: 190,887 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.1

Radius: 13

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.54 AU - 0.84 AU

Year: 376 Days

Day: 13.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 9,776,707 km

• M1: 164,707 km (0.064 R)
• M2: 627,563 km (0.088 R)
• M3: 1,189,901 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 14.8

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.66 AU - 1.1 AU

Year: 542 Days

Day: 8.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,776,707 km

• M1: 184,155 km (0.09 R)
• M2: 679,623 km (0.065 R)
• M3: 1,162,525 km (0.092 R)
• M4: 1,856,659 km (0.116 R)
• M5: 2,423,037 km (0.09 R)
• M6: 3,747,726 km (0.053 R)
• M7: 4,450,537 km (0.062 R)
• M8: 5,162,024 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.2

Radius: 12.1

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.01 AU - 1.49 AU

Year: 917 Days

Day: 14.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 9,776,707 km

• M1: 150,645 km (0.077 R)
• M2: 552,914 km (0.104 R)
• M3: 941,419 km (0.046 R)
• M4: 1,337,555 km (0.088 R)
• M5: 1,940,883 km (0.046 R)
• M6: 2,698,297 km (0.118 R)
• M7: 5,302,945 km (0.119 R)
• M8: 6,202,777 km (0.115 R)
• M9: 6,843,654 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392.3

Radius: 8.8

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.35 AU - 1.67 AU

Year: 1217 Days

Day: 6.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 172 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 9,776,707 km

• M1: 110,254 km (0.096 R)
• M2: 405,859 km (0.057 R)
• M3: 696,228 km (0.107 R)
• M4: 1,158,636 km (0.117 R)
• M5: 1,631,664 km (0.097 R)
• M6: 2,054,727 km (0.089 R)
• M7: 2,391,172 km (0.061 R)
• M8: 2,788,953 km (0.1 R)
• M9: 3,453,766 km (0.092 R)
• M10: 4,042,733 km (0.074 R)
• M11: 4,626,913 km (0.102 R)
• M12: 6,151,764 km (0.114 R)
• M13: 7,711,172 km (0.094 R)
• M14: 8,036,846 km (0.113 R)
• M15: 9,320,097 km (0.066 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: 264 - 11,760 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit