🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.2 AU - 1.24 AU

Year: 508 Days

Day: 44.1 Hours

Environment

Temp: -22 °C

Axial Tilt: 43.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 57,048,881 km

• M1: 94,695 km (0.106 R)
• M2: 487,390 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.36 AU - 1.4 AU

Year: 611 Days

Day: 38.5 Hours

Environment

Temp: -41 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.37 AU - 1.65 AU

Year: 699 Days

Day: 27.3 Hours

Environment

Temp: -47 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,048,881 km

• M1: 1,102,836 km (0.097 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.28 AU - 2.06 AU

Year: 813 Days

Day: 23.7 Hours

Environment

Temp: -55 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.6 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.5

Radius: 9.4

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 7.17 AU - 7.87 AU

Year: 7769 Days

Day: 13 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,048,881 km

• M1: 117,285 km (0.08 R)
• M2: 423,212 km (0.087 R)
• M3: 1,137,542 km (0.117 R)
• M4: 1,535,323 km (0.105 R)
• M5: 1,867,879 km (0.093 R)
• M6: 2,219,733 km (0.118 R)
• M7: 2,632,175 km (0.073 R)
• M8: 5,118,641 km (0.065 R)
• M9: 5,432,198 km (0.103 R)
• M10: 5,926,768 km (0.038 R)
• M11: 8,317,791 km (0.077 R)
• M12: 8,642,419 km (0.117 R)
• M13: 9,746,451 km (0.117 R)
• M14: 10,435,947 km (0.081 R)
• M15: 11,244,674 km (0.119 R)
• M16: 11,552,995 km (0.083 R)
• M17: 12,048,912 km (0.104 R)
• M18: 12,938,720 km (0.114 R)
• M19: 17,521,501 km (0.074 R)
• M20: 19,471,659 km (0.039 R)
• M21: 19,916,862 km (0.117 R)
• M22: 21,697,825 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.8

Radius: 11.3

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 10.47 AU - 12.35 AU

Year: 14520 Days

Day: 6.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 104.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,048,881 km

• M1: 189,391 km (0.093 R)
• M2: 746,493 km (0.104 R)
• M3: 1,117,795 km (0.096 R)
• M4: 2,538,825 km (0.118 R)
• M5: 2,930,622 km (0.106 R)
• M6: 3,837,634 km (0.112 R)
• M7: 6,754,045 km (0.076 R)
• M8: 9,002,351 km (0.105 R)
• M9: 10,404,682 km (0.046 R)
• M10: 13,637,791 km (0.101 R)
• M11: 35,834,674 km (0.03 R)
• M12: 48,471,505 km (0.073 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 16,157 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit