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Special Notice #397: Bright Transient in Sco (PNV J17032620-3504140)

February 11, 2015: Patrick Schmeer (SPK, Bischmisheim, Germany) reports the announcement on the CBAT Transient Object Confirmation Page (TOCP) of the discovery of a bright transient in Sco on 2015 February 11.8367 UT at unfiltered CCD magnitude 8.2 by Tadashi Kojima (Gunma-ken, Japan) using a 150-mm f/2.8 lens + a digital camera. Kojima reports nothing is visible on a frame from the same camera on Feb. 10.827 UT.

Campaign highlight: b Persei

Some of the best opportunities for contributing to astronomical research come through the AAVSO's Observing Campaigns, which are observing projects requested by individual researchers with a specific goal in mind. Some Campaigns are designed to last for a long time, and the results aren't known until well after the campaign concludes.  But some campaigns pay off immediately.  Our campaign on the bright star b Persei is an example of the latter, with a handful of AAVSO observers getting exactly the right data, at the right time, right away!

Charts and Sequences Update January 2015

With APASS data release 8 filling in most of the remaining areas of sky with reliable secondary standards, the sequence team has been busy filling the remaining standing requests. This latest batch of new and revised sequences also has many newly discovered CVs from ASASSN, as well as sequences for RCB, NR and ZAND objects in the AID and VSX. You can downoad the list as either an .xlsx or .csv file.

AAVSO Newsletter for January 2015 is published

AAVSO Newsletter 63, January 2015 is now available to members

The AAVSO Newsletter is a periodic, general forum that supports our various observing programs with lists of new targets, observing programming ideas, and general information that spans a wide area of interest. Guest writers contribute pieces that can range from current events to book reviews.

New eJAAVSO preprint: An eclipsing symbiotic nova in outburst?


The Curious Case of ASAS J174600-2321.3: an Eclipsing Symbiotic Nova in Outburst?

Stefan Hümmerich
Stiftstr. 4, Braubach, D-56338, Germany; American Association of Variable Star Observers (AAVSO), Cambridge, MA;
Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne e.V. (BAV), Berlin, Germany

Sebastián Otero
Olazabal 3650-8 C, Buenos Aires, 1430, Argentina; American Association of Variable Star Observers (AAVSO), Cambridge, MA

Special Notice #396: Blazar PKS 0716+71 in very bright outburst

January 19, 2015: The blazar PKS 0716+71 == S5 0716+71 is currently in a very bright active state, at a visual magnitude of 12.1 as observed by G. Poyner on 2015 January 19.212 (JD 2457041.712).  The object was first noted in outburst by Arkharov et al.

Two new eJAAVSO preprints: Maxima of 67 SPPs; Longterm monitoring of semiregulars



Recent Maxima of 67 Short Period Pulsating Stars

Gerard Samolyk

P.O. Box 20677, Greenfield, WI 53220

Received January 8, 2015; accepted January 8, 2015


This paper contains times of maxima for 67 short period pulsating stars (primarily RR Lyrae and delta Scuti stars).
These maxima represent the CCD observations received by the AAVSO Short Period Pulsator (SPP) section in 2014.

Special Notice #395: Alpha Com campaign cancelled

January 16, 2015: We have been informed by PI Dr. Matthew Muterspaugh that his campaign on alpha Com (AAVSO Alert Notice 506) has been cancelled. Position measurements published a century ago contained errors that affected the predictions for the time of eclipse.

More information will be coming from Dr. Muterspaugh and we will disseminate it to everyone in an Alert Notice, but he asked that the observer community be informed now so that observing efforts might not be wasted.

Solar Bulletin - Volume 70, Number 12

The December 2014 Solar Bulletin is now available. Please visit the Solar Bulletin web page to download your copy:

New eJAAVSO preprint: Revised elements of 78 southern EB systems


Revised Light Elements of 78 Southern Eclipsing Binary Systems

Margaret Streamer, Jeff Byron, David J. W. Moriarty, Tom Richards, Bill Allen, Roy Axelsen, Col Bembrick, Mark Blackford, Terry Bohlsen, David Herald, Roland Idaczyk, Stephen Kerr, Ranald McIntosh, Yenal Ogmen, Jonathan Powles, Peter Starr, George Stockham



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