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Variable Stars

AAVSO Special Notice #63: Outburst in HS 2331+3905
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Sept 4, 2007 From AAVSO

The WZ Sge-candidate object HS 2331+3905 has been reported in outburst on VSNET by two observers. This object was last reported as fainter than

14.6 on JD 2454347.3931 (Sept 3, 2007, 21:26 UT), and has now been detected at 14.59 and 14.4 by observers in Japan. HS 2331+3905 has never been observed in outburst before, and observations are strongly encouraged.

This object is known to have a very short orbital period consistent with the WZ Sge class, and is also known to have a pulsating white dwarf primary. It may also have a brown dwarf secondary, making this a very unique object.

HS 2331+3905 is located at RA 23:34:01.55, Dec +39:21:42.9 (J2000)

You can produce a chart of this object by entering the coordinates above into VSP: http://www.aavso.org/observing/charts/vsp/index.html

 

Please report your observations to the AAVSO as "HS2331+390" (designation 2328+38).

This AAVSO Special Notice was prepared by Matthew Templeton.


Forwarded by
Brad Walter
bswalter@hughes.net
www.mcmahanobservatory.com

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