News and Announcements
|31 March||How to report new variable star discoveries||
What do I do when I discover a new variable star?
|30 March||Alert Notice 434: Outburst of NSV 1436||
March 30, 2011: The cataclysmic variable NSV 1436 has been discovered in outburst. This is the first bright outburst of this star observed since 1948, and followup observations are strongly encouraged. Little is known about the nature of NSV 1436, and observations may help shed light on whether the star is an infrequently outbursting normal dwarf nova, a WZ Sge star, or recurrent nova.
|28 March||AAVSO Special Notice #237||
NOVA SAGITTARII 2011 No. 2 = PNV J18102135-2305306
|21 March||Edward A. Halbach, 1909-2011|
|21 March||Last Chance! Help us plan for the 100th Annual Meeting of the AAVSO||
If you have not already completed the survey, please help us to plan for the Centennial Annual Meeting by answering these 10 questions.
|20 March||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).
|16 March||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.
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.
|16 March||New ejaavso preprint: "Orbital Period of Three Cataclysmic Variables" by P. Wils||
ej 140: "The Orbital Period of Three Cataclysmic Variables From WASP Data" (P. Wils)
|14 March||Alert Notice 432: Supernova 2011at = PSN J09285756-1448206 in MCG -02-24-27||
March 14, 2011
|14 March||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.
|09 March||Abstract Deadline TODAY 3/9!||
This is a friendly abstract deadline reminder for the joint AAVSO/AAS meeting being held in Boston this May:
|05 March||DSLR Chat Transcript From Last Saturday at 11am ET (-5UT)||
Note: This chat is over. A transcript can be found here.
|05 March||Charts and Sequences update March 2011||
The following stars have new or revised sequences since Feb. 02, 2011.
If you observe any of these stars, please update your charts as soon as possible.
This batch of updates includes many stars visible from the southern heisphere only.
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