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Charts and Sequences Update January 2012

There are over 100 new and revised charts and sequences since the last update in November. Many of these are for stars in the newly formed YSO Section Program, southern stars with new photometry from APASS and campaign targets. The rest are revisions based on issues reported to CHET and requests for new sequences from our observers.

Alert Notice 451: Monitoring of the Symbiotic Variable RT Cru Requested

January 27, 2012: The symbiotic variable RT Cru has brightened in hard x-rays. Dr. Jeno Sokoloski, Columbia University, has requested AAVSO assistance in monitoring RT Cru both now and in the future to see if it is doing anything unusual in the optical. The Swift/BAT hard X-ray light curve shows RT Cru has apparently been gradually brightening over the past few years.  

Visual Observing Manual in Hungarian

Thanks to the hard work, dedication, and persistence(!) of AAVSO member/observer Péter Molnár and Dr. László Kiss, the January 2010 edition of the "Manual for Visual Observing of Variable Stars" is now available in Hungarian.

http://www.aavso.org/visual-observing-manual-hungarian

If you know of anyone who may benefit from this translation, please spread the word!

Special Notice #264: SUPERNOVA 2012A IN NGC 3239 = PSN J10250739+1709146

January 21, 2012:  In IAU Central Bureau Electronic Telegram 2974 (Daniel W. E. Green, ed.), B. Moore, J. Newton, and T. Puckett report the discovery of an apparent supernova in the irregular galaxay NGC 3239 at unfiltered magnitude 14.6 taken with a 0.40-m reflector at Portal, AZ, on 2012 Jan. 7.3869 UT in the course of the Puckett Observatory Supernova Search. SN 2012A was confirmed by Puckett at magnitude 14.4 on Jan. 8.3352; nothing is visible down to magnitude 19.0 on his images from 2011 Dec. 29.

New Tool to Opt Out of E-Mails

Occasionally the AAVSO may send e-mail updates about organization activities to its members and observers. Example activities are the publication of our quarterly newsletter, meeting announcements, etc. On average these e-mails are sent about once every month or two.

We have a new way for you to opt out of receiving these e-mails. Simply visit the URL below and click the “Opt-Out” button.

http://www.aavso.org/apps/email/