Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 29,799,915 km of Earth in 2029
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

417217 (2005 YS) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2005 YS as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 YS orbits the sun every 219 days (0.60 years), coming as close as 0.32 AU and reaching as far as 1.10 AU from the sun. Based on its brightness and the way it reflects light, 2005 YS is probably between 0.320 to 0.715 kilometers in diameter, making it small in absolute terms, but larger than 90% of asteroids, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2005 YS's orbit is 0.03 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

2005 YS has 22 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 21, 2029 29,799,915 13.436
Dec. 22, 2032 29,080,612 13.448
Dec. 23, 2035 28,464,249 13.464
Dec. 24, 2038 27,957,779 13.478
Dec. 24, 2041 27,608,648 13.485
Dec. 24, 2044 27,231,276 13.486
Dec. 25, 2047 26,814,089 13.489
Dec. 25, 2050 26,362,726 13.493
Dec. 26, 2053 25,919,589 13.505
Dec. 26, 2056 25,714,015 13.517
Dec. 26, 2059 25,697,268 13.527
Dec. 26, 2062 25,833,311 13.527
Dec. 25, 2065 26,172,595 13.521
Dec. 25, 2068 26,509,260 13.509
Dec. 25, 2071 26,813,329 13.500
Dec. 25, 2074 27,085,153 13.484
Dec. 24, 2077 27,327,358 13.474
Dec. 24, 2080 27,713,931 13.462
Dec. 24, 2083 28,296,134 13.455
Dec. 23, 2086 28,953,817 13.445
Dec. 21, 2089 29,778,995 13.443
Jan. 3, 2197 27,571,581 21.679

Images and Observations

2005 YS's orbit is determined by observations dating back to Dec. 21, 2005. It was last officially observed on Feb. 4, 2018. The IAU Minor Planet Center records 199 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2005 YS:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 0.7111 AU
  • Eccentricity: 0.5504
  • Inclination: 19.59°
  • Longitude of Ascending Node: 288.62°
  • Argument of Periapsis: 327.9°
  • Mean Anomaly: 221.21°

Physical Characteristics

  • Diameter: ~0.413 km
  • Magnitude: 19.6

Derived Characteristics

  • Orbit Period: 219 days (0.60 years)
  • Avg. Orbit Speed: 35.32 km/s
  • Aphelion Distance: 1.10 AU
  • Perihelion Distance: 0.32 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 417217 (2005 YS) is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of 2005 YS to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.