🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.42 AU - 0.62 AU

Year: 246 Days

Day: 30 Hours

Environment

Temp: -120 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.1

Radius: 12.1

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.59 AU - 0.85 AU

Year: 401 Days

Day: 5.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,925,234 km

• M1: 150,495 km (0.058 R)
• M2: 661,821 km (0.099 R)
• M3: 1,115,701 km (0.1 R)
• M4: 1,695,991 km (0.05 R)
• M5: 2,077,615 km (0.092 R)
• M6: 2,471,656 km (0.081 R)
• M7: 3,245,526 km (0.101 R)
• M8: 3,830,304 km (0.078 R)
• M9: 4,280,743 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.9

Radius: 11.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.67 AU - 0.97 AU

Year: 487 Days

Day: 5.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 24,925,234 km

• M1: 145,858 km (0.119 R)
• M2: 522,097 km (0.066 R)
• M3: 990,488 km (0.034 R)
• M4: 1,657,395 km (0.102 R)
• M5: 2,260,723 km (0.097 R)
• M6: 2,699,494 km (0.112 R)
• M7: 4,277,153 km (0.083 R)
• M8: 4,982,656 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.8

Radius: 12.2

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.79 AU - 1.05 AU

Year: 579 Days

Day: 8.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,925,234 km

• M1: 151,842 km (0.075 R)
• M2: 718,668 km (0.064 R)
• M3: 1,229,844 km (0.069 R)
• M4: 1,912,758 km (0.104 R)
• M5: 2,523,566 km (0.118 R)
• M6: 3,043,569 km (0.113 R)
• M7: 3,463,789 km (0.11 R)
• M8: 4,196,819 km (0.081 R)
• M9: 4,767,983 km (0.089 R)
• M10: 5,496,525 km (0.047 R)
• M11: 6,085,791 km (0.105 R)
• M12: 6,839,914 km (0.119 R)
• M13: 7,304,415 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.5

Radius: 12.4

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.89 AU - 3.89 AU

Year: 4095 Days

Day: 10.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 24,925,234 km

• M1: 154,235 km (0.074 R)
• M2: 545,883 km (0.049 R)
• M3: 1,060,649 km (0.065 R)
• M4: 1,963,322 km (0.059 R)
• M5: 2,677,054 km (0.084 R)
• M6: 3,577,334 km (0.086 R)
• M7: 4,411,791 km (0.053 R)
• M8: 4,863,427 km (0.1 R)
• M9: 5,916,147 km (0.098 R)
• M10: 6,407,277 km (0.116 R)
• M11: 6,894,367 km (0.095 R)
• M12: 8,150,990 km (0.089 R)
• M13: 9,909,812 km (0.088 R)
• M14: 11,640,210 km (0.057 R)
• M15: 12,136,875 km (0.101 R)
• M16: 14,679,291 km (0.055 R)
• M17: 18,636,903 km (0.112 R)
• M18: 20,467,083 km (0.09 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 14,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit