[Aavso-photometry] Update on Alert Notice 359 -- monitoring of SDSS074545 for HST observations

[Matthew Templeton]

Hello everyone,

We've been notified by Dr. Paula Szkody that HST is scheduled to observe 
SDSS074545 on 2007 Nov 01, 01:30-10:11 UT.  In order to safely observe, 
HST has to know the system is in quiescence.  Observations are still 
requested of this object, including fainter-than observations in the range 
of magnitude 15-16.  The observations of AAVSO observers were critical in 
completing HST observations of PQ Andromedae last month; SDSS074545 is the 
second pulsating white dwarf CV in this major project to be observed, and 
your observations of this field are greatly appreciated.

For more information on this campaign please see Alert Notice 359:

http://www.aavso.org/publications/alerts/alert359.shtml


To see an F-scale chart of this object, see

http://www.aavso.org/cgi-bin/vsp.pl?action=render&name=&ra=07+45+31.92&dec=%2B45+38+29.5&charttitle=SDSS+J074531.92%2B453829.5&chartcomment=&aavsoscale=F&fov=15&resolution=100&maglimit=18.5&ccdbox=0&north=up&east=left&dss=on&Submit=Plot+Chart


Thanks for your observations of this and all other variables in the AAVSO 
program!

Clear skies, and good observing,

 	Matthew