🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.46 AU - 0.68 AU

Year: 278 Days

Day: 13.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.5

Radius: 13.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.67 AU - 0.99 AU

Year: 488 Days

Day: 12.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,832,955 km

• M1: 165,605 km (0.044 R)
• M2: 759,808 km (0.07 R)
• M3: 1,322,296 km (0.111 R)
• M4: 1,840,203 km (0.115 R)
• M5: 2,752,601 km (0.119 R)
• M6: 3,297,137 km (0.032 R)
• M7: 3,754,907 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.2

Radius: 14.1

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.75 AU - 1.87 AU

Year: 1572 Days

Day: 14 Hours

Environment

Temp: -182 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,832,955 km

• M1: 323,131 km (0.072 R)
• M2: 1,505,703 km (0.067 R)
• M3: 2,834,281 km (0.072 R)
• M4: 4,199,063 km (0.068 R)
• M5: 5,166,512 km (0.104 R)
• M6: 5,904,478 km (0.107 R)
• M7: 9,356,150 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130

Radius: 10.1

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.02 AU - 3.64 AU

Year: 3924 Days

Day: 13.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 22,832,955 km

• M1: 206,744 km (0.095 R)
• M2: 565,929 km (0.106 R)
• M3: 1,127,070 km (0.059 R)
• M4: 1,724,265 km (0.115 R)
• M5: 2,879,310 km (0.113 R)
• M6: 3,768,221 km (0.079 R)
• M7: 4,934,037 km (0.057 R)
• M8: 5,320,299 km (0.074 R)
• M9: 6,202,477 km (0.061 R)
• M10: 8,225,639 km (0.079 R)
• M11: 9,500,811 km (0.079 R)
• M12: 11,412,373 km (0.064 R)
• M13: 12,283,182 km (0.094 R)
• M14: 13,902,130 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.7

Radius: 14.9

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 3.07 AU - 3.95 AU

Year: 4246 Days

Day: 9 Hours

Environment

Temp: -209 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 22,832,955 km

• M1: 186,549 km (0.099 R)
• M2: 693,237 km (0.031 R)
• M3: 1,250,788 km (0.096 R)
• M4: 1,769,144 km (0.097 R)
• M5: 2,566,800 km (0.092 R)
• M6: 3,296,838 km (0.072 R)
• M7: 4,291,813 km (0.074 R)
• M8: 5,028,433 km (0.082 R)
• M9: 5,848,230 km (0.05 R)
• M10: 6,785,610 km (0.068 R)
• M11: 8,359,828 km (0.061 R)
• M12: 9,104,676 km (0.109 R)
• M13: 9,739,719 km (0.082 R)
• M14: 10,205,716 km (0.063 R)
• M15: 11,309,150 km (0.105 R)
• M16: 13,181,816 km (0.113 R)
• M17: 15,619,065 km (0.066 R)
• M18: 18,697,490 km (0.112 R)
• M19: 19,541,521 km (0.089 R)
• M20: 22,697,288 km (0.117 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 243 - 11,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit