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News and Announcements

03 May New eJAAVSO preprint: on Classical Cepheids

(ej174): "Classical Cepheids After 228 Years of Study" by D. G. Turner

www.aavso.org/ejaavso

03 May New eJAAVSO preprint: on Joel Stebbins

(ej173): "Illinois­—Where Astronomical Photometry Grew Up" by B. B. Beaman and M. T. Svec

www.aavso.org/ejaavso

03 May New eJAAVSO preprint: Star Watching in Japan

(ej172): "Star Watching Promoted by the Ministry of the Environment, Japan" by S. Sakuma

www.aavso.org/ejaavso

02 May New eJAAVSO preprint: on Solar Flares, Fears, and Forecasts...

(ej171): "Flares, Fears, and Forecasts: Public Misconceptions About the Sunspot Cycle" by K. Larsen

www.aavso.org/ejaavso

02 May New eJAAVSO preprint: Recent Maxima of 55 Short Period Pulsating Stars

(ej170): "Recent Maxima of 55 Short Period Pulsating Stars" by G. Samolyk

www.aavso.org/ejaavso

02 May New eJAAVSO preprint: on Early Pulsation Theory

(ej169): "The Development of Early Pulsation Theory, or, How Cepheids Are Like Steam Engines" by M. Stanley

www.aavso.org/ejaavso

01 May New eJAAVSO preprint: Acquisition of Photometric Data

(ej168): "The Acquisition of Photometric Data" by A. U. Landolt

www.aavso.org/ejaavso

01 May New eJAAVSO preprint: on RR Lyr stars

(ej167): "Things We Don't Understand about RR Lyrae Stars" by H. A. Smith

www.aavso.org/ejaavso

01 May New eJAAVSO preprint: on Anne S. Young

(ej166): "Anne S. Young: Professor and Variable Star Observer Extraordinaire" by K. Bracher

http://www.aavso.org/ejaavso

30 April arXiv Algol paper: Did the ancient egyptians record the period of the eclipsing binary Algol - the Raging one?
30 April New eJAAVSO preprint: Non-Mira Pulsating Red Giants and Supergiants

(ej 165): "Non-Mira Pulsating Red Giants and Supergiants" by L. Kiss, J. R. Percy


http://www.aavso.org/ejaavso

30 April New eJAAVSO preprint: on Dorrit Hoffleit...

(ej164): "Variable Stars and Constant Commitments: The Stellar Career of Dorrit Hoffleit" by K. Larsen

http://www.aavso.org/ejaavso

27 April New eJAAVSO preprint: Young Stellar Objects...

(ej163): "The Variability of Young Stellar Objects" by W. Herbst

http://www.aavso.org/ejaavso

27 April New eJAAVSO preprint: on Martha Stahr Carpenter...

(ej162): "Reminiscences on the Career of Martha Stahr Carpenter: Between a Rock and (Several) Hard Places" by K. Larsen

http://www.aavso.org/ejaavso

27 April New eJAAVSO preprint: Walking With AAVSO Giants...

(ej161): "Walking With AAVSO Giants—A Personal Journey (1960s)" by R. S. Kolman and M. Simonsen

http://www.aavso.org/ejaavso

27 April New eJAAVSO preprint: Cataclysmic Variables

(ej160): "Cataclysmic Variables" by P. Szkody and B. T. Gaensicke


http://www.aavso.org/ejaavso

26 April New eJAAVSO preprint: John Goodricke, Edward Pigott...

(ej159): "John Goodricke, Edward Pigott, and Their Study of Variable Stars" by Linda M. French


http://www.aavso.org/ejaavso

26 April New eJAAVSO preprint: The Hubble Plate of 1923

(ej158): "The Hubble Plate of 1923: A Story of Pink Polyethylene" by D. R. Soderblom

http://www.aavso.org/ejaavso

24 April New eJAAVSO preprint: The AAVSO 2011 Demographic and Background Survey

New eJAAVSO preprint (ej 157): "The AAVSO 2011 Demographic and Background Survey" by A. Price and K. B. Paxson

http://www.aavso.org/ejaavso

23 April Final Week of Astro-April: SEVEN more online talks!

The AASVO's Citizen Sky Project has been producing a series of online talks as a part of a month-long celebration called Astro-April.

In the last couple of weeks we have presented 5 online talks on various astronomical subjects.  (If you missed any of them, recordings are posted on the main Astro-April page.)  The speakers have been engaging, the questions have been thoughtful, and we've given away $250 in "door" prizes!

23 April Charts and Sequences Updates April 2012

The following stars have new or revised sequences since April 9, 2012. If you observe any of these objects please update your observing charts as soon as possible.

Thank you, 
AAVSO Charts and Sequences Team

22 April Special Notice #278: Bright flaring of Blazar OJ 287

April 22, 2012: The blazar OJ 287 (Cancer) has brightened from its low optical state to its high state and is flaring. The Astronomer's Telegram #4057 (S. Zola et al., http://www.astronomerstelegram.org/?read=4057) reports very high optical activity.

Observations of OJ 287 in the AAVSO International Database may be
viewed (http://www.aavso.org/ql),
plotted (http://www.aavso.org/lcg), or

21 April Special Notice #277: Possible Nova in Sagittarius (PNV J17452791-2305213)

April 21, 2012: The discovery of a possible nova in Sagittarius was posted on the IAU CBAT Transient Object Confirmation Page (TOCP, http://www.cbat.eps.harvard.edu/unconf/tocp.html).

20 April New eJAAVSO preprint: International Observing Campaign: Photometry and Spectroscopy of P Cygni

"New eJAAVSO preprint (ej156): International Observing Campaign: Photometry and Spectroscopy of P Cygni"

by E. Pollmann and T. Bauer

http://www.aavso.org/ejaavso

17 April New Survey about AAVSO Strategic Direction & Operations

In late 2011 we issued a survey focused on the demographics and astronomical background of our membership. The results have recently been published here.

We now have a new, follow up survey prepared. This one is focused on the strategic direction of the AAVSO and the operations of the organization. The survey asks questions about the future direction of the organization, staff, officers and council and much more.

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484