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Alert Notice 433: Request for observations of GW Lib in support of HST observations

March 20, 2011: Dr. Paula Szkody, University of Washington, has requested our help in monitoring the cataclysmic variable GW Lib for upcoming Hubble Space Telescope observations, scheduled to be made during the week of 2011 April 7-11 UT. Dr. Szkody also observed this object with HST in March 2010 (see AAVSO Alert Notice 417).

Centennial Celebration Update March 2011

We are nearing the end of the first quarter of our centennial year. This is a good time to take a look at what has transpired thus far and what is yet to come.

Observer Challenges

http://www.aavso.org/centennial-observer-challenges

The Twenty Million and Counting! Contest is over now that the database has passed this milestone. The winner, with the prediction closest to the actual day of the milestone was Christopher Watson of San Diego, California.

Alert Notice 432: Supernova 2011at = PSN J09285756-1448206 in MCG -02-24-27

March 14, 2011

Discovered by: Lou Cox, Jack Newton, and Tim Puckett, Ellijay, GA, in the course of the Puckett Observatory Supernova Search

Discovery Date: March 10.214 UT

Discovery Magnitude: unfiltered CCD magnitude 14.5 (limiting magnitude 19.0) taken with a 0.40-m reflector at Portal, AZ

Position: R.A. = 09:28:57.56  Decl. = -14:48:20.6 (equinox 2000.0)
SN 2011at is 20.4" east and 6.3" north of the center of PGC 26905 = MCG -02-24-27.

2nd DSLR Online Chat: March 19 at 11:00 AM ET

Members from the Citizen Sky DSLR Documentation and Reduction team will be hosting a second chat on Saturday, March 19 at 11:00 AM Eastern.  If you have questions about using your DSLR camera for photometry, or any portion of their tutorials please plan to attend.  Science questions are also welcome. More details on how to join the chat will follow this week. Click here for info on how to join the chat.