🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.53 AU - 0.57 AU

Year: 145 Days

Day: 12.5 Hours

Environment

Temp: 255 °C

Axial Tilt: 101.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.64 AU - 0.84 AU

Year: 227 Days

Day: 38.5 Hours

Environment

Temp: 176 °C

Axial Tilt: 34.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.22 AU - 1.64 AU

Year: 610 Days

Day: 16.4 Hours

Environment

Temp: -19 °C

Axial Tilt: 22 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.56 AU - 1.74 AU

Year: 755 Days

Day: 29.4 Hours

Environment

Temp: -35 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.86 AU - 2.4 AU

Year: 1108 Days

Day: 26.1 Hours

Environment

Temp: -54 °C

Axial Tilt: 5.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,336,060 km

• M1: 82,578 km (0.049 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.73 AU - 2.71 AU

Year: 1179 Days

Day: 46.2 Hours

Environment

Temp: -73 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 15.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 615.4

Radius: 7.4

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 11.89 AU - 19.49 AU

Year: 22153 Days

Day: 24.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,336,060 km

• M1: 93,349 km (0.093 R)
• M2: 905,366 km (0.06 R)
• M3: 1,620,145 km (0.104 R)
• M4: 2,006,706 km (0.062 R)
• M5: 2,836,974 km (0.117 R)
• M6: 3,429,232 km (0.103 R)
• M7: 4,820,941 km (0.081 R)
• M8: 6,290,291 km (0.079 R)
• M9: 6,688,670 km (0.089 R)
• M10: 7,438,305 km (0.048 R)
• M11: 8,883,122 km (0.079 R)
• M12: 11,322,764 km (0.045 R)
• M13: 14,251,441 km (0.062 R)
• M14: 19,075,075 km (0.04 R)
• M15: 23,598,017 km (0.039 R)
• M16: 27,019,470 km (0.095 R)
• M17: 28,547,762 km (0.097 R)
• M18: 38,651,452 km (0.102 R)
• M19: 39,389,269 km (0.047 R)
• M20: 41,504,882 km (0.049 R)
• M21: 47,290,430 km (0.082 R)
• M22: 51,255,222 km (0.078 R)
• M23: 71,299,692 km (0.117 R)
• M24: 76,496,871 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 360.3

Radius: 4.8

Gravity: 15.64 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 14.82 AU - 23.52 AU

Year: 29918 Days

Day: 24.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 130.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,336,060 km

• M1: 66,571 km (0.072 R)
• M2: 266,135 km (0.072 R)
• M3: 559,795 km (0.077 R)
• M4: 1,604,886 km (0.09 R)
• M5: 2,405,235 km (0.09 R)
• M6: 3,560,878 km (0.085 R)
• M7: 4,060,385 km (0.111 R)
• M8: 5,353,061 km (0.1 R)
• M9: 5,797,366 km (0.117 R)
• M10: 8,993,226 km (0.049 R)
• M11: 10,337,063 km (0.045 R)
• M12: 10,834,177 km (0.104 R)
• M13: 13,561,945 km (0.071 R)
• M14: 15,641,654 km (0.083 R)
• M15: 18,370,619 km (0.065 R)
• M16: 21,301,540 km (0.099 R)
• M17: 22,721,673 km (0.037 R)
• M18: 23,138,901 km (0.085 R)
• M19: 24,529,563 km (0.095 R)
• M20: 25,975,277 km (0.095 R)
• M21: 29,649,700 km (0.076 R)
• M22: 34,745,601 km (0.112 R)
• M23: 35,999,232 km (0.107 R)
• M24: 36,565,908 km (0.1 R)
• M25: 39,339,303 km (0.081 R)
• M26: 41,625,308 km (0.042 R)
• M27: 42,564,035 km (0.102 R)
• M28: 45,960,655 km (0.077 R)
• M29: 54,765,836 km (0.088 R)
• M30: 56,461,528 km (0.075 R)
• M31: 58,581,180 km (0.097 R)
• M32: 58,972,229 km (0.091 R)
• M33: 62,773,959 km (0.075 R)
• M34: 62,978,460 km (0.118 R)
• M35: 68,886,678 km (0.089 R)
• M36: 73,552,635 km (0.112 R)
• M37: 78,424,739 km (0.096 R)

Kuiper Belt

Range: 30.8 - 57.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 19,258 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit