Web Publications

Low state of VY Scl
October 2, 2008

The cataclysmic variable VY Scl appears to have recently entered a
low state according to observations recently submitted to the AAVSO.
Javier Temprano reports positive detections of VY Scl at CV=17.46 
on JD 2454730.46181 (2008 Sept 20.9618) and at CV=18.23 on JD 
2454730.572 (2008 Sept 21.072).  All other recent AAVSO and ASAS-3
(Pojmanski, G. 2002, Acta Astronomica 52, 397) observations indicate 
that VY Scl is below detectability limits.  This is the first time 
VY Scl has been detected in a deep minimum in many years, comparable 
to the deep minimum observed by Cropper and Warner in 1983 (IAUC 
3877).  Observations of VY Scl, both visual and instrumental, are 
urgently requested beginning immediately, and continuing through 
this current episode.


VY Scl (AUID 000-BCR-581) is located at the following (J2000) coordinates:

RA: 23 29 00.50 , Dec: -29 46 46.0


Recently submitted observations of VY Scl are available at 
the following URL:

http://www.aavso.org/cgi-bin/newql.pl?name=VY%20Scl&output=html [4]


Charts for VY Scl may be plotted using VSP:

http://www.aavso.org/observing/charts/vsp/index.html?pickname=VY%20Scl [5]


Please promptly submit all observations to the AAVSO as "VY SCL" (AUID
000-BCR-581).


This AAVSO Alert Notice was prepared by M. Templeton.


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