🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.93

Radius: 0.97

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.67 AU - 0.71 AU

Year: 205 Days

Day: 42.6 Hours

Environment

Temp: 152 °C

Axial Tilt: 8.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 4.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.81 AU - 4.41 AU

Year: 2984 Days

Day: 16.4 Hours

Environment

Temp: -112 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.8 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.6

Radius: 8.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 5.33 AU - 5.65 AU

Year: 4607 Days

Day: 5.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,801,451 km

• M1: 116,537 km (0.068 R)
• M2: 429,346 km (0.096 R)
• M3: 933,940 km (0.119 R)
• M4: 1,929,065 km (0.071 R)
• M5: 2,325,200 km (0.094 R)
• M6: 2,698,446 km (0.117 R)
• M7: 3,195,710 km (0.092 R)
• M8: 4,025,080 km (0.044 R)
• M9: 5,225,454 km (0.119 R)
• M10: 5,665,720 km (0.075 R)
• M11: 7,866,604 km (0.108 R)
• M12: 13,549,977 km (0.055 R)
• M13: 15,444,933 km (0.09 R)
• M14: 16,559,138 km (0.1 R)
• M15: 17,242,351 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.6

Radius: 14.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 5.45 AU - 6.11 AU

Year: 4977 Days

Day: 14.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 45,801,451 km

• M1: 184,604 km (0.08 R)
• M2: 749,037 km (0.106 R)
• M3: 1,281,455 km (0.086 R)
• M4: 2,630,679 km (0.05 R)
• M5: 3,797,841 km (0.066 R)
• M6: 4,439,766 km (0.086 R)
• M7: 6,731,755 km (0.101 R)
• M8: 10,037,419 km (0.084 R)
• M9: 12,002,836 km (0.102 R)
• M10: 12,848,662 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.1

Radius: 13

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.9 AU - 10.64 AU

Year: 11788 Days

Day: 12.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,801,451 km

• M1: 161,715 km (0.042 R)
• M2: 674,686 km (0.057 R)
• M3: 1,393,953 km (0.118 R)
• M4: 1,862,194 km (0.104 R)
• M5: 2,291,091 km (0.12 R)
• M6: 3,171,176 km (0.116 R)
• M7: 5,022,150 km (0.096 R)
• M8: 5,433,095 km (0.108 R)
• M9: 6,039,565 km (0.026 R)
• M10: 6,542,064 km (0.039 R)
• M11: 7,033,643 km (0.093 R)
• M12: 7,963,992 km (0.095 R)
• M13: 8,793,064 km (0.117 R)
• M14: 13,045,832 km (0.06 R)
• M15: 14,198,035 km (0.106 R)
• M16: 15,351,135 km (0.103 R)
• M17: 18,209,801 km (0.092 R)
• M18: 22,239,369 km (0.099 R)
• M19: 24,687,089 km (0.101 R)
• M20: 25,326,022 km (0.081 R)
• M21: 27,019,769 km (0.118 R)
• M22: 29,089,904 km (0.04 R)
• M23: 31,904,439 km (0.077 R)
• M24: 35,584,995 km (0.096 R)
• M25: 37,348,006 km (0.061 R)
• M26: 38,433,488 km (0.059 R)
• M27: 44,311,787 km (0.112 R)
• M28: 44,984,828 km (0.115 R)

Kuiper Belt

Range: 30.6 - 48.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 11,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit