🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.55 AU - 0.63 AU

Year: 297 Days

Day: 26.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.9

Radius: 9

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.67 AU - 0.85 AU

Year: 435 Days

Day: 14.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 10,613,794 km

• M1: 116,387 km (0.096 R)
• M2: 413,788 km (0.104 R)
• M3: 1,002,605 km (0.105 R)
• M4: 1,736,083 km (0.029 R)
• M5: 2,130,124 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.1

Radius: 11.4

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.97 AU - 0.99 AU

Year: 636 Days

Day: 12.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 10,613,794 km

• M1: 143,016 km (0.087 R)
• M2: 553,811 km (0.043 R)
• M3: 1,207,404 km (0.087 R)
• M4: 3,111,187 km (0.067 R)
• M5: 3,800,235 km (0.096 R)
• M6: 4,336,992 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.5

Radius: 10.9

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.95 AU - 1.47 AU

Year: 873 Days

Day: 6.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 10,613,794 km

• M1: 135,536 km (0.071 R)
• M2: 640,877 km (0.119 R)
• M3: 998,117 km (0.066 R)
• M4: 1,558,511 km (0.09 R)
• M5: 2,265,809 km (0.057 R)
• M6: 3,637,921 km (0.114 R)
• M7: 4,228,533 km (0.117 R)
• M8: 5,360,840 km (0.069 R)
• M9: 5,870,819 km (0.102 R)
• M10: 6,525,160 km (0.112 R)
• M11: 7,011,802 km (0.049 R)
• M12: 7,398,662 km (0.091 R)
• M13: 8,241,795 km (0.071 R)
• M14: 8,922,167 km (0.1 R)
• M15: 9,639,788 km (0.113 R)
• M16: 10,364,290 km (0.118 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 11,670 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit