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Special Notice #114: Rebrightening of the dwarf nova VY Aqr

July 22, 2008

Several observers have reported that the dwarf nova VY Aqr has rebrightened since fading from its initial superoutburst.  Although VY Aqr has been classified as a WZ Sge-type dwarf nova, previous superoutburst rebrightenings have not been well-observed.  Continued monitoring of VY Aqr for the next several weeks is strongly encouraged. Both visual and CCD time-series observations are needed, the former to track the overall light curve, and the latter to study superhumps and short-term variability.  Both positive and fainter-than estimates are valuable, so please continue to monitor VY Aqr if and when it becomes faint again -- it may undergo further rebrightenings during this outburst.

VY Aqr (AUID 000-BCN-520) is located at J2000 coordinates

RA: 21 12 09.20 , Dec: -08 49 36.5

Charts for VY Aqr may be plotted with VSP: http://www.aavso.org/observing/charts/vsp/index.html?pickname=VY%20Aqr

This AAVSO Special Notice was prepared by Matthew Templeton.

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