🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.42 AU - 0.68 AU

Year: 263 Days

Day: 26.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.63 AU - 0.63 AU

Year: 323 Days

Day: 21.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 6,347,706 km

• M1: 401,521 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.6

Radius: 13.4

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.7 AU - 1.02 AU

Year: 515 Days

Day: 5.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 6,347,706 km

• M1: 166,802 km (0.079 R)
• M2: 686,505 km (0.073 R)
• M3: 1,301,501 km (0.119 R)
• M4: 1,902,287 km (0.035 R)
• M5: 2,763,222 km (0.108 R)
• M6: 3,200,946 km (0.071 R)
• M7: 3,709,578 km (0.054 R)
• M8: 4,258,603 km (0.103 R)
• M9: 4,891,102 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 261.4

Radius: 8.2

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.93 AU - 1.15 AU

Year: 685 Days

Day: 10.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 149.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 6,347,706 km

• M1: 102,325 km (0.076 R)
• M2: 465,100 km (0.117 R)
• M3: 934,089 km (0.101 R)
• M4: 1,312,422 km (0.043 R)
• M5: 2,113,968 km (0.089 R)
• M6: 3,418,611 km (0.113 R)
• M7: 4,214,621 km (0.109 R)
• M8: 4,539,547 km (0.106 R)
• M9: 4,927,006 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.4

Radius: 12.7

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.85 AU - 1.27 AU

Year: 705 Days

Day: 13.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 6,347,706 km

• M1: 157,975 km (0.081 R)
• M2: 633,098 km (0.108 R)
• M3: 1,058,704 km (0.104 R)
• M4: 1,501,663 km (0.107 R)
• M5: 1,978,282 km (0.113 R)
• M6: 2,477,939 km (0.042 R)
• M7: 3,279,784 km (0.108 R)
• M8: 3,945,793 km (0.052 R)
• M9: 4,551,066 km (0.09 R)
• M10: 5,136,742 km (0.113 R)
• M11: 5,965,813 km (0.076 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 532 - 14,601 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit