🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.53 AU - 0.67 AU

Year: 300 Days

Day: 32.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 33,920,748 km

• M1: 42,935 km (0.026 R)
• M2: 224,696 km (0.038 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.63 AU - 0.71 AU

Year: 354 Days

Day: 13.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 8.5

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.92 AU - 1.38 AU

Year: 796 Days

Day: 12.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,920,748 km

• M1: 107,710 km (0.054 R)
• M2: 376,987 km (0.12 R)
• M3: 671,395 km (0.101 R)
• M4: 948,002 km (0.088 R)
• M5: 1,625,830 km (0.054 R)
• M6: 1,993,840 km (0.111 R)
• M7: 2,436,351 km (0.06 R)
• M8: 3,100,266 km (0.072 R)
• M9: 3,431,775 km (0.104 R)
• M10: 3,933,078 km (0.044 R)
• M11: 4,768,133 km (0.115 R)
• M12: 5,065,982 km (0.074 R)
• M13: 5,510,737 km (0.086 R)
• M14: 5,821,452 km (0.102 R)

Asteroid Belt

Center: 1.64 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.3

Radius: 13.8

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.88 AU - 2.36 AU

Year: 1993 Days

Day: 8.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,920,748 km

• M1: 171,738 km (0.086 R)
• M2: 1,103,284 km (0.107 R)
• M3: 1,720,824 km (0.114 R)
• M4: 2,244,267 km (0.082 R)
• M5: 4,568,270 km (0.098 R)
• M6: 5,676,790 km (0.115 R)
• M7: 6,379,751 km (0.114 R)
• M8: 10,152,160 km (0.08 R)
• M9: 10,766,559 km (0.085 R)
• M10: 12,798,995 km (0.078 R)
• M11: 13,314,510 km (0.091 R)
• M12: 13,926,664 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.9

Radius: 14.4

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.15 AU - 6.59 AU

Year: 9183 Days

Day: 5.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,920,748 km

• M1: 198,367 km (0.113 R)
• M2: 751,879 km (0.111 R)
• M3: 1,243,757 km (0.119 R)
• M4: 2,573,383 km (0.109 R)
• M5: 3,053,293 km (0.093 R)
• M6: 3,593,490 km (0.039 R)
• M7: 4,654,887 km (0.117 R)
• M8: 6,660,845 km (0.077 R)
• M9: 8,181,807 km (0.119 R)
• M10: 9,065,781 km (0.11 R)
• M11: 10,191,654 km (0.095 R)
• M12: 10,695,201 km (0.099 R)
• M13: 11,167,481 km (0.06 R)
• M14: 12,204,643 km (0.046 R)
• M15: 12,984,198 km (0.091 R)
• M16: 14,816,173 km (0.102 R)
• M17: 19,332,982 km (0.106 R)
• M18: 20,827,614 km (0.09 R)
• M19: 22,321,498 km (0.098 R)
• M20: 22,938,739 km (0.045 R)
• M21: 24,694,869 km (0.085 R)
• M22: 26,027,187 km (0.109 R)
• M23: 31,742,424 km (0.081 R)
• M24: 33,217,160 km (0.079 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 18,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit