🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.46 AU - 0.76 AU

Year: 313 Days

Day: 45.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 38 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.6

Radius: 10.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.75 AU - 0.81 AU

Year: 452 Days

Day: 6.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 19,574,589 km

• M1: 125,961 km (0.101 R)
• M2: 656,884 km (0.12 R)
• M3: 1,002,605 km (0.114 R)
• M4: 1,484,310 km (0.119 R)
• M5: 2,006,706 km (0.104 R)
• M6: 2,388,031 km (0.067 R)
• M7: 2,984,777 km (0.084 R)
• M8: 3,537,690 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.4

Radius: 12.8

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.63 AU - 1.77 AU

Year: 1454 Days

Day: 12.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,574,589 km

• M1: 168,896 km (0.105 R)
• M2: 860,038 km (0.11 R)
• M3: 1,426,565 km (0.045 R)
• M4: 1,926,821 km (0.075 R)
• M5: 2,531,046 km (0.117 R)
• M6: 2,935,260 km (0.082 R)
• M7: 3,510,015 km (0.105 R)
• M8: 4,826,626 km (0.054 R)
• M9: 5,411,254 km (0.092 R)
• M10: 6,279,819 km (0.085 R)
• M11: 7,671,528 km (0.071 R)
• M12: 10,298,766 km (0.058 R)
• M13: 11,631,982 km (0.11 R)
• M14: 12,340,328 km (0.097 R)
• M15: 12,880,377 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.5

Radius: 10.1

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.14 AU - 4.2 AU

Year: 5586 Days

Day: 12.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 19,574,589 km

• M1: 125,961 km (0.105 R)
• M2: 444,306 km (0.115 R)
• M3: 869,912 km (0.07 R)
• M4: 1,315,115 km (0.045 R)
• M5: 2,170,815 km (0.116 R)
• M6: 3,222,338 km (0.05 R)
• M7: 4,347,613 km (0.097 R)
• M8: 7,445,636 km (0.117 R)
• M9: 8,429,541 km (0.083 R)
• M10: 9,319,648 km (0.064 R)
• M11: 10,385,234 km (0.056 R)
• M12: 10,770,897 km (0.079 R)
• M13: 13,289,377 km (0.076 R)
• M14: 14,589,383 km (0.097 R)
• M15: 15,073,631 km (0.1 R)
• M16: 16,853,397 km (0.107 R)
• M17: 18,486,856 km (0.079 R)
• M18: 19,169,022 km (0.094 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: 496 - 14,706 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit