WD 0145+234

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)

WD 0145+234

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Aries[1]
Right ascension	01^h 47^m 54.81^s[2][3]
Declination	+23° 39′ 43.6″[2][3]
Apparent magnitude (V)	11.64[4]
Characteristics
Spectral type	DA[2]
Astrometry
Distance	98.08 ly (29.458[3] pc)
Details
Temperature	12910[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
SIMBAD	data

See also

• Disrupted planet
• List of stars that dim oddly
• Tabby's Star
• WD 1145+017

References

1. Staff (2 August 2008). "Finding the constellation which contains given sky coordinates". DJM.cc. Retrieved 29 August 2019.
2. Staff (2019). "WD 0145+234". SIMBAD. Retrieved 17 October 2019.
3. 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. 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.