🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.6 AU - 0.94 AU

Year: 236 Days

Day: 40.4 Hours

Environment

Temp: 151 °C

Axial Tilt: 36.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.91 AU - 0.97 AU

Year: 319 Days

Day: 46.8 Hours

Environment

Temp: 184 °C

Axial Tilt: 45 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.93 AU - 2.73 AU

Year: 1244 Days

Day: 43.1 Hours

Environment

Temp: -74 °C

Axial Tilt: 49.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.5

Radius: 9.4

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 7.45 AU - 8.63 AU

Year: 7976 Days

Day: 12.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 95,710,179 km

• M1: 116,836 km (0.1 R)
• M2: 500,106 km (0.069 R)
• M3: 880,533 km (0.117 R)
• M4: 1,284,747 km (0.051 R)
• M5: 1,766,900 km (0.096 R)
• M6: 2,456,995 km (0.079 R)
• M7: 2,783,568 km (0.052 R)
• M8: 3,524,975 km (0.098 R)
• M9: 4,203,102 km (0.073 R)
• M10: 5,491,439 km (0.106 R)
• M11: 6,226,413 km (0.084 R)
• M12: 7,410,630 km (0.107 R)
• M13: 10,613,969 km (0.061 R)
• M14: 11,967,979 km (0.059 R)
• M15: 14,331,775 km (0.078 R)
• M16: 14,889,626 km (0.04 R)
• M17: 18,112,113 km (0.104 R)
• M18: 20,269,464 km (0.107 R)
• M19: 21,691,542 km (0.096 R)
• M20: 24,033,945 km (0.084 R)
• M21: 27,476,043 km (0.036 R)
• M22: 31,647,729 km (0.038 R)
• M23: 37,841,679 km (0.117 R)

Planet 5 - Ice Giant

Semi-Major Axis: 18.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 706

Radius: 7.2

Gravity: 13.62 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 16.91 AU - 20.05 AU

Year: 27793 Days

Day: 16.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 95,710,179 km

• M1: 89,609 km (0.105 R)
• M2: 351,854 km (0.092 R)
• M3: 619,784 km (0.037 R)
• M4: 1,314,666 km (0.114 R)
• M5: 2,350,033 km (0.069 R)
• M6: 2,775,938 km (0.105 R)
• M7: 3,282,028 km (0.103 R)
• M8: 4,331,457 km (0.108 R)
• M9: 6,163,432 km (0.118 R)
• M10: 8,629,852 km (0.106 R)
• M11: 9,765,899 km (0.114 R)
• M12: 10,017,223 km (0.075 R)
• M13: 10,664,383 km (0.113 R)
• M14: 16,882,120 km (0.1 R)
• M15: 18,842,899 km (0.073 R)
• M16: 20,130,189 km (0.097 R)
• M17: 21,055,003 km (0.103 R)
• M18: 21,474,924 km (0.113 R)
• M19: 29,628,307 km (0.108 R)
• M20: 30,958,681 km (0.049 R)
• M21: 31,775,785 km (0.108 R)
• M22: 33,169,289 km (0.087 R)
• M23: 33,595,194 km (0.1 R)
• M24: 34,024,839 km (0.095 R)
• M25: 40,268,306 km (0.04 R)
• M26: 43,235,281 km (0.069 R)
• M27: 43,573,671 km (0.092 R)
• M28: 55,359,141 km (0.062 R)
• M29: 57,987,426 km (0.071 R)
• M30: 61,334,977 km (0.114 R)
• M31: 65,474,799 km (0.092 R)
• M32: 67,272,218 km (0.039 R)
• M33: 72,861,493 km (0.103 R)
• M34: 90,362,649 km (0.048 R)
• M35: 93,433,594 km (0.074 R)

Kuiper Belt

Range: 31.4 - 46.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 383 - 15,092 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit