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Alert Notice 441: Monitoring of Bright Giant Variables requested in support of ground-based spectroscopy and for long-term study

May 27, 2011: Dr. Steve Howell (NASA) and Dr. Travis Rector (University of Alaska, Anchorage) have requested AAVSO observations of several bright giant variable stars of diverse classes.  This request is for immediate support of spectroscopic observations to be made at Kitt Peak National Observatory between 2011 May 30 and 2011 June 01 (JD 2455712 - 714).  However, observers are encouraged to continue long-term monitoring of these objects.

New ejaavso preprint: "CI Cygni 2010 Outburst and Eclipse: An Amateur Spectroscopic Survey..."

"CI Cygni 2010 Outburst and Eclipse: An Amateur Spectroscopic Survey—First Results From Low Resolution Spectra" by F. Teyssier

 

http://www.aavso.org/ejaavso

David Benn Receives 2011 Director's Award

 

 

It was announced at the AAVSO Banquet, Saturday, May 21, 2011, that the 2011 recipient of the AAVSO Director's Award is David Benn of Klemzig, South Australia.

Arne's citation told of how he and David met and how that meeting developed into a reincarnation of VSTAR though David's selfless hard work and devotion.

Minor planet 12789 Salvadoraguirre named for AAVSO member!

Minor planet 12789 Savadoraguirre is named for AAVSO member/observer Salvador Aguirre, M.D. (observer code "ASA"), an avid amateur astronomer from Hermosillo, Mexico. He has conducted many observations of variable stars, asteroid occultations, meteors, and comets. He has also help popularize and coordinate amateur astronomical research within Mexico.

http://www.aavso.org/minor-planet-names-honor-aavso-members-and-observers

Alert Notice 440: PEP Observing Campaign on P Cygni

CONTINUED THROUGH 2017

May 17, 2011:  Ernst Pollmann, an active spectroscopist in Germany and leader of Active Spectroscopy in Astronomy, has requested the assistance of AAVSO photoelectric photometry (PEP) observers in a campaign to observe the S Doradus variable P Cygni through the 2011 observing season.

PEP data are needed for correlation with spectra of P Cyg obtained by Ernst and other spectroscopists as they study this very interesting star.

AAVSO en Espacio Profundo Radio

A partir del viernes 13 de mayo, la AAVSO tendrá una sección en el programa Espacio Profundo Radio, que se emite todos los viernes entre las 20 y 21 GMT. El programa es conducido por Cristina Ruffa y auspiciado por Espacio Profundo, una de los sitios web más conocidos en el ámbito latinoamericano.

Chat Transcript - History of the AAVSO

The following is a chat transcript from May 9, 2011. The topic of the chat was the History of the AAVSO and variable star observing with guests Dr. Mike Saladyga and Dr. Tom Williams. Some footnotes are at the bottom.

<DocKQR> Hello Folks!

AAVSO HQ Job Position: Administrative Assistant

The American Association of Variable Star Observers (AAVSO) is looking
for an administrative assistant with immediate availability. The ideal
candidate will work well in a team environment, but demonstrate
initiative and perseverance. The AAVSO is a small non-profit in the
Fresh Pond area of Cambridge, serving a membership of amateur
astronomers across the world who wish to contribute scientific
observations of stars that vary in brightness. We are celebrating our

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