We are pleased to announce the return of many of your favorite CHOICE courses this year.
The tentative schedule is listed below. Click on the course name to read its description. Dates and classes may change due to availability of instructors for the courses.
Does the Period of a Pulsating Star Depend on its Amplitude?
John R. Percy, Jeong Yeon Yook 245
CT Lacertae: Another Long-period Carbon Star with Long-Timescale Variations?
Matthew R. Templeton, Peter Maurer, Wolfgang Kriebel, Wayne M. Lowder (1932–2003),
Etienne Morelle, Steve O’Connor, Andrzej Arminski, Laurent Bichon, John E. Bortle 260
December 11, 2014: In AAVSO Special Notice #392, the name of the supernova discovered in NGC 4666 was given as ASASSN-141p. It should have been ASASSN-14lp. That is to say, the text following the dash should
be "fourteen ell pee" and not "fourteen one pee".
Please create charts and submit observations using the name ASASSN-14lp.
Sincere apologies for the error!
This AAVSO Special Notice was compiled by Elizabeth O. Waagen.
December 11, 2014: T. W.-S. Holoien et al. announce in The Astronomer's Telegram (ATel) #6795 (http://www.astronomerstelegram.org/?read=6795) the discovery of a transient in NGC 4666 at magnitude 14.3 V on 2014 December 9.61 UT. The discovery was made in the course of the All Sky Automated Survey for SuperNovae (ASASSN) search, and the object assigned the name ASASSN-14lp. ASASSN-14lp was not seen (<15.3 V) in poor-quality ASASSN images obtained on 2104 Dec. 08.35 UT.
La American Association of Variable Star Observers (AAVSO) y la British Astronomical Association Variable Star Section (BAAVSS) tienen el agrado de anunciar que el archivo de observaciones de estrellas variables de la BAAVSS ya está disponible a través del sitio web de AAVSO. Los archivos de la BAAVSS cuentan con más de 2,5 millones de observaciones de estrellas variables realizadas en su mayoría por astrónomos aficionados de todo el mundo durante los pasados 150 años.
December 2, 2014: AAVSO Alert Notice 505 (http://www.aavso.org/aavso-alert-notice-505) announced the campaign on several northern dwarf novae by Deanne Coppejans and colleagues. This campaign, searching for radio jets in dwarf novae, has been moving very quickly! Thanks to your observations and timely notifications, three of the five sets of VLA observations available for the targets have been used on Z Cam, RX And, and YZ Cnc. The PI is extremely appreciative and thanks you all for your excellent work.
