WD 0145+234

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Coordinates: Sky map 01h 47m 54.81s, +23° 39′ 43.6″

WD 0145+234
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aries[1]
Right ascension 01h 47m 54.81s[2][3]
Declination +23° 39′ 43.6″[2][3]
Apparent magnitude (V) 11.64[4]
Spectral type DA[2]
Distance98.08 ly
(29.458[3] pc)
Temperature12910[2] K
Other designations
WD 0145+234; 2MASS J01475481+2339437; 1SWASP J014754.80+233943.8; Gaia DR2 291057843317534464; CHSS 3403; Mrk 362; WD 0145+23
Database references

WD 0145+234 is a white dwarf star approximately 95 ly (29 pc)[3] from Earth in the constellation of Aries that has been associated with studies suggesting that a very large exoasteroid near the star was substantially disrupted, resulting in a considerable amount of dust and debris around the star.[3][5] Studies seem to have captured, for the first time, an exoasteroid breakup around the actual time interval of the disruption event.[3][5]

Exoasteroid disrupted by star (artist concept)

See also[edit]


  1. ^ Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 29 August 2019.
  2. ^ a b c d Staff (2019). "WD 0145+234". SIMBAD. Retrieved 17 October 2019.
  3. ^ a b c d e f Wang, Ting-gui; et al. (10 October 2019). "An On-going Mid-infrared Outburst in the White Dwarf 0145+234: Catching in Action of Tidal Disruption of an Exoasteroid?". arXiv:1910.04314v1 [astro-ph.SR].
  4. ^ Staff (2019). "WD0145+234". Villanova University. Retrieved 17 October 2019.
  5. ^ a b Letzer, Rafi (17 October 2019). "An Asteroid-Smashing Star Ground a Giant Rock to Bits and Covered Itself in the Remains". LiveScience. Retrieved 17 October 2019.