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AAVSO Newsletter 65, July 2015 is published

AAVSO Newsletter 65, July 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.

2015 Fall Meeting Dates

The 2015 Fall Meeting of the AAVSO will be held November 12-14 at the Hilton Hotel in Woburn, MA.

  • Thursday, November 12th - AAVSO Council Meeting
  • Friday and Saturday, November 13-14th - Sessions

Details will be posted on the AAVSO homepage and on the main meetings page as they are available.

VStar 2.16.8 release

VStar 2.16.8 has just been released. Please visit the VStar Forum to learn more.

Alert Notice 523: Correction to AAVSO Alert Notice 522

July 1, 2015:  In AAVSO Alert Notice 522 on the upcoming observations of the black hole X-ray binary V404 Cyg by HST, the date of the detection by the Swift satellite was incorrectly given as 2015 June 16.77197 UT (Barthelmy et al., GCN Circular 17929). The correct date is 2015 June 15.77197 UT.

Our sincere apologies for this error!

Alert Notice 522: V404 Cyg HST multiwavelength observations scheduled

Correction: In the text below, the date of the detection by the Swift satellite was incorrectly given as 2015 June 16.77197 UT. The correct date is 2015 June 15.77197 UT.

Our sincere apologies for this error!

July 1, 2015:

Printed version of JAAVSO v. 43 n. 1 is now available

eJAAVSO

The printed version of this issue is now available from createspace.com: https://www.createspace.com/5570976

For information on purchasing earlier issues of JAAVSO, please visit our online store: http://www.aavso.org/order-printed-jaavso

Charts and Sequences Update June 2015

The following objects have new or revised sequences.

Alert Notice 521: Very rare outburst of the symbiotic variable AG Peg

June 23, 2015: The symbiotic variable AG Peg is in outburst, the first one observed since its only known outburst, which occurred in 1860-1870. Currently at visual/V magnitude 7.2 (B=7.8), it is an excellent target for visual, PEP, CCD, and DSLR observers and spectroscopists. The current outburst began after 2015 May 27 UT (T. Markham, Leek, Staffordshire, England, from the BAAVSS online database) and was underway by June 13.90 (A. Kosa-Kiss, Salonta, Romania).

JAAVSO volume 43, number 1 is published

eJAAVSO

http://www.aavso.org/apps/jaavso/volumes/

The printed version of this issue will be available soon. Please watch for the announcement on our main web page.

The Journal of the American Association of Variable Star Observers
Volume 43, Number 1, 2015

Table of Contents

Editorial

Alert Notice 520: X-ray nova and LMXB V404 Cyg in rare outburst

June 18, 2015: V404 Cyg, an X-ray nova and a low mass X-ray binary (LMXB) with black hole component, is undergoing its first reported X-ray and optical outburst since 1989. Large scale, rapid variations are being reported in wavelengths from X-ray to radio by professional and amateur astronomers worldwide.

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