🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.49 AU - 0.69 AU

Year: 164 Days

Day: 33.3 Hours

Environment

Temp: 209 °C

Axial Tilt: 16.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 107,698,856 km

• M1: 150,944 km (0.115 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.6 AU - 0.88 AU

Year: 230 Days

Day: 15.9 Hours

Environment

Temp: 143 °C

Axial Tilt: 15.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.76 AU - 1.04 AU

Year: 309 Days

Day: 41.3 Hours

Environment

Temp: 156 °C

Axial Tilt: 9.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 107,698,856 km

• M1: 281,842 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.85 AU - 1.21 AU

Year: 378 Days

Day: 26.9 Hours

Environment

Temp: 15 °C

Axial Tilt: 8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 107,698,856 km

• M1: 116,836 km (0.049 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.02 AU - 1.28 AU

Year: 446 Days

Day: 29.1 Hours

Environment

Temp: 6 °C

Axial Tilt: 35.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 107,698,856 km

• M1: 41,289 km (0.104 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.94

Radius: 1.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 4.78 AU - 5.1 AU

Year: 3971 Days

Day: 30.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 107,698,856 km

• M1: 571,314 km (0.048 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.4

Radius: 8

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.55 AU - 9.35 AU

Year: 9683 Days

Day: 6.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 107,698,856 km

• M1: 99,483 km (0.118 R)
• M2: 527,931 km (0.043 R)
• M3: 795,113 km (0.061 R)
• M4: 1,374,206 km (0.088 R)
• M5: 5,922,729 km (0.095 R)
• M6: 7,135,818 km (0.115 R)
• M7: 8,808,173 km (0.095 R)
• M8: 9,432,744 km (0.081 R)
• M9: 12,614,092 km (0.075 R)
• M10: 13,559,850 km (0.085 R)
• M11: 16,504,983 km (0.083 R)
• M12: 19,264,615 km (0.116 R)
• M13: 21,543,440 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.8

Radius: 7.4

Gravity: 15.04 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 17.89 AU - 20.75 AU

Year: 30711 Days

Day: 23.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 107,698,856 km

• M1: 92,003 km (0.101 R)
• M2: 339,587 km (0.057 R)
• M3: 773,421 km (0.06 R)
• M4: 2,771,151 km (0.1 R)
• M5: 4,627,062 km (0.051 R)
• M6: 4,947,052 km (0.116 R)
• M7: 9,383,975 km (0.074 R)
• M8: 11,122,003 km (0.051 R)
• M9: 16,112,139 km (0.105 R)
• M10: 30,748,197 km (0.097 R)
• M11: 31,310,685 km (0.096 R)
• M12: 44,051,337 km (0.073 R)
• M13: 50,570,064 km (0.077 R)
• M14: 67,113,494 km (0.102 R)
• M15: 69,736,693 km (0.079 R)
• M16: 80,116,840 km (0.112 R)
• M17: 97,998,424 km (0.065 R)
• M18: 98,605,940 km (0.11 R)

Kuiper Belt

Range: 30.3 - 57.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 13,284 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit