🌌 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: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.6 AU - 0.8 AU

Year: 207 Days

Day: 34.1 Hours

Environment

Temp: 174 °C

Axial Tilt: 8.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 56,104,426 km

• M1: 105,616 km (0.081 R)
• M2: 290,968 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.93 AU - 1.29 AU

Year: 413 Days

Day: 38.8 Hours

Environment

Temp: 32 °C

Axial Tilt: 31 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 56,104,426 km

• M1: 92,601 km (0.034 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.15 AU - 1.17 AU

Year: 441 Days

Day: 36.4 Hours

Environment

Temp: 39 °C

Axial Tilt: 37.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.09 AU - 1.63 AU

Year: 560 Days

Day: 36.2 Hours

Environment

Temp: -3 °C

Axial Tilt: 33.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.54

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.71 AU - 2.85 AU

Year: 1216 Days

Day: 19.6 Hours

Environment

Temp: -76 °C

Axial Tilt: 22.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.53 AU - 5.88 AU

Year: 3598 Days

Day: 33.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,104,426 km

• M1: 936,483 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 593.1

Radius: 11.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 9.96 AU - 12.86 AU

Year: 13609 Days

Day: 13.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,104,426 km

• M1: 140,772 km (0.099 R)
• M2: 1,090,419 km (0.119 R)
• M3: 1,651,560 km (0.053 R)
• M4: 2,282,415 km (0.048 R)
• M5: 2,686,778 km (0.104 R)
• M6: 3,309,404 km (0.116 R)
• M7: 4,111,548 km (0.079 R)
• M8: 6,684,332 km (0.082 R)
• M9: 7,651,931 km (0.118 R)
• M10: 8,054,948 km (0.083 R)
• M11: 10,287,995 km (0.1 R)
• M12: 11,869,693 km (0.056 R)
• M13: 12,350,052 km (0.097 R)
• M14: 13,349,665 km (0.11 R)
• M15: 18,365,831 km (0.092 R)
• M16: 21,291,068 km (0.087 R)
• M17: 22,090,818 km (0.106 R)
• M18: 22,910,465 km (0.102 R)
• M19: 25,491,328 km (0.097 R)
• M20: 26,090,168 km (0.094 R)
• M21: 28,901,561 km (0.11 R)
• M22: 33,429,140 km (0.088 R)
• M23: 37,760,597 km (0.061 R)
• M24: 43,435,293 km (0.12 R)
• M25: 44,721,236 km (0.106 R)
• M26: 45,592,494 km (0.096 R)
• M27: 51,375,350 km (0.059 R)
• M28: 52,011,140 km (0.079 R)

Kuiper Belt

Range: 31.1 - 55.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 15,878 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit