🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.49 AU - 0.63 AU

Year: 275 Days

Day: 41.7 Hours

Environment

Temp: -118 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.9

Radius: 11.9

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.71 AU - 1.13 AU

Year: 579 Days

Day: 10.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 9,813,935 km

• M1: 148,102 km (0.12 R)
• M2: 577,149 km (0.091 R)
• M3: 1,182,122 km (0.051 R)
• M4: 2,031,389 km (0.108 R)
• M5: 2,477,042 km (0.054 R)
• M6: 3,123,454 km (0.099 R)
• M7: 3,787,070 km (0.083 R)
• M8: 4,195,023 km (0.113 R)
• M9: 4,602,378 km (0.099 R)
• M10: 5,004,198 km (0.082 R)
• M11: 5,565,340 km (0.119 R)
• M12: 6,131,418 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.5

Radius: 9.7

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.03 AU - 1.13 AU

Year: 736 Days

Day: 10.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 9,813,935 km

• M1: 120,576 km (0.095 R)
• M2: 459,565 km (0.094 R)
• M3: 838,945 km (0.078 R)
• M4: 1,288,337 km (0.077 R)
• M5: 1,930,411 km (0.069 R)
• M6: 2,248,007 km (0.093 R)
• M7: 2,567,099 km (0.063 R)
• M8: 2,928,827 km (0.092 R)
• M9: 3,612,789 km (0.05 R)
• M10: 4,335,346 km (0.031 R)
• M11: 4,938,226 km (0.11 R)
• M12: 5,711,048 km (0.106 R)
• M13: 6,126,631 km (0.108 R)
• M14: 6,733,849 km (0.106 R)
• M15: 7,153,022 km (0.093 R)
• M16: 8,415,179 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.3

Radius: 8.5

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.86 AU - 2.68 AU

Year: 2244 Days

Day: 5.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,813,935 km

• M1: 105,766 km (0.083 R)
• M2: 397,033 km (0.119 R)
• M3: 1,848,132 km (0.066 R)
• M4: 2,685,282 km (0.112 R)
• M5: 2,951,416 km (0.07 R)
• M6: 3,407,989 km (0.03 R)
• M7: 5,697,884 km (0.059 R)
• M8: 8,585,123 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.6

Radius: 12.3

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.28 AU - 2.54 AU

Year: 2454 Days

Day: 5.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 9,813,935 km

• M1: 153,039 km (0.037 R)
• M2: 1,488,050 km (0.049 R)
• M3: 2,466,570 km (0.107 R)
• M4: 3,177,309 km (0.091 R)
• M5: 3,610,694 km (0.076 R)
• M6: 4,196,220 km (0.115 R)
• M7: 5,382,831 km (0.117 R)
• M8: 6,781,571 km (0.095 R)
• M9: 7,999,297 km (0.099 R)
• M10: 8,753,869 km (0.108 R)
• M11: 9,273,722 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 19,290 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit