🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.48 AU - 0.54 AU

Year: 133 Days

Day: 28.6 Hours

Environment

Temp: 228 °C

Axial Tilt: 35.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.43 AU - 0.67 AU

Year: 149 Days

Day: 17.7 Hours

Environment

Temp: 198 °C

Axial Tilt: 22 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,748,234 km

• M1: 244,293 km (0.061 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.92 AU - 1.34 AU

Year: 439 Days

Day: 28.3 Hours

Environment

Temp: 15 °C

Axial Tilt: 110.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.15 AU - 1.31 AU

Year: 498 Days

Day: 18.4 Hours

Environment

Temp: -3 °C

Axial Tilt: 25.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 77,748,234 km

• M1: 39,045 km (0.069 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.34 AU - 1.86 AU

Year: 739 Days

Day: 36.8 Hours

Environment

Temp: -53 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 77,748,234 km

• M1: 37,848 km (0.076 R)
• M2: 482,304 km (0.1 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.25 AU - 3.27 AU

Year: 1675 Days

Day: 32.8 Hours

Environment

Temp: -101 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.69 AU - 2.95 AU

Year: 1730 Days

Day: 43.6 Hours

Environment

Temp: -89 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,748,234 km

• M1: 25,432 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 855.9

Radius: 4.4

Gravity: 44.21 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 12.34 AU - 15.02 AU

Year: 18481 Days

Day: 17.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 77,748,234 km

• M1: 55,052 km (0.1 R)
• M2: 327,619 km (0.097 R)
• M3: 478,264 km (0.103 R)
• M4: 848,669 km (0.104 R)
• M5: 987,795 km (0.049 R)
• M6: 1,197,232 km (0.079 R)
• M7: 1,635,554 km (0.106 R)
• M8: 2,049,341 km (0.117 R)
• M9: 2,576,823 km (0.066 R)
• M10: 3,217,401 km (0.106 R)
• M11: 4,663,414 km (0.106 R)
• M12: 7,134,472 km (0.098 R)
• M13: 8,434,029 km (0.096 R)
• M14: 8,809,071 km (0.113 R)
• M15: 10,240,124 km (0.081 R)
• M16: 15,688,927 km (0.056 R)
• M17: 15,849,595 km (0.047 R)
• M18: 17,516,714 km (0.039 R)
• M19: 19,022,865 km (0.063 R)
• M20: 19,760,532 km (0.065 R)
• M21: 20,517,198 km (0.063 R)
• M22: 20,902,712 km (0.101 R)
• M23: 23,317,521 km (0.055 R)
• M24: 26,475,831 km (0.108 R)
• M25: 32,700,748 km (0.105 R)
• M26: 33,624,665 km (0.033 R)
• M27: 35,111,368 km (0.087 R)
• M28: 39,387,923 km (0.06 R)
• M29: 42,735,923 km (0.097 R)
• M30: 47,600,098 km (0.117 R)
• M31: 49,644,801 km (0.08 R)
• M32: 52,281,913 km (0.088 R)
• M33: 55,941,525 km (0.075 R)
• M34: 57,642,453 km (0.071 R)
• M35: 57,833,639 km (0.044 R)
• M36: 58,795,554 km (0.1 R)
• M37: 64,998,480 km (0.088 R)
• M38: 70,963,545 km (0.045 R)
• M39: 71,403,064 km (0.066 R)
• M40: 76,128,112 km (0.079 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 10,593 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit