🌌 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: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.47 AU - 0.59 AU

Year: 253 Days

Day: 45 Hours

Environment

Temp: -118 °C

Axial Tilt: 32 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.52 AU - 0.54 AU

Year: 253 Days

Day: 14.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 48.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.4

Radius: 13.7

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.76 AU - 0.84 AU

Year: 469 Days

Day: 12.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 9,382,421 km

• M1: 170,392 km (0.086 R)
• M2: 666,159 km (0.107 R)
• M3: 1,118,244 km (0.083 R)
• M4: 1,571,077 km (0.119 R)
• M5: 2,330,436 km (0.101 R)
• M6: 3,014,397 km (0.095 R)
• M7: 3,763,434 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.6

Radius: 12

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.21 AU - 1.33 AU

Year: 939 Days

Day: 8.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 9,382,421 km

• M1: 149,747 km (0.075 R)
• M2: 528,230 km (0.109 R)
• M3: 925,562 km (0.113 R)
• M4: 1,769,892 km (0.045 R)
• M5: 2,463,877 km (0.11 R)
• M6: 3,048,206 km (0.12 R)
• M7: 4,393,989 km (0.026 R)
• M8: 4,812,414 km (0.065 R)
• M9: 5,976,585 km (0.105 R)
• M10: 7,201,043 km (0.044 R)
• M11: 7,986,582 km (0.083 R)
• M12: 9,020,303 km (0.103 R)
• M13: 9,903,828 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.5

Radius: 13.1

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.14 AU - 1.64 AU

Year: 1075 Days

Day: 12.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 9,382,421 km

• M1: 167,250 km (0.092 R)
• M2: 611,257 km (0.108 R)
• M3: 1,078,002 km (0.084 R)
• M4: 1,980,377 km (0.103 R)
• M5: 3,604,112 km (0.098 R)
• M6: 5,264,947 km (0.111 R)
• M7: 5,824,892 km (0.095 R)
• M8: 6,424,331 km (0.106 R)
• M9: 7,156,313 km (0.079 R)
• M10: 8,117,480 km (0.096 R)
• M11: 9,244,849 km (0.108 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 538 - 11,257 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit