News and Announcements
|11 January||New Visual Observing Manual in Chinese||
Thanks to the efforts of Cheng Simiao, a young and very enthusiastic observer from Beijing, we now have a new, more up-to-date Chinese version of the "Manual for Visual Observing of Variable Stars" available for download. He wishes that this edition be thought of as a 100th birthday present to the AAVSO as well as an 18th birthday gift to himself.
Congratulations and many thanks to Mr. Cheng!
|29 December||Light Curve Generator Upgrades||
Some work has been done recently to the AAVSO's Light Curve Generator.
Three additional filters, the Tri-R, Tri-G, and Tri-B filters, primarily used in DSLR work, were added to the data that the Light Curve Generator can now display. This should be of great use to people monitoring bright variable stars with cameras, among others.
|20 December||The AAVSO Computer History Project||
Welcome to the AAVSO Computer History Project
The purpose of this project is to document the history of the Information Technology Infrastructure of the AAVSO, how it came to be, what hardware was used, who were the people involved, and how the technology was used to further the mission of variable star observing and analysis.
|20 December||Data Usage Reports are available again||
We are happy to announce that after a few months of testing, the AAVSO's Data Usage Reports are now available to all observers again. You may subscribe to these weekly reports by visiting this page:
|19 December||2012 JD Calendar||
The 2012 JD Calendar is now available.
Just go to the JD Calendar page and scroll down to the bottom where you will be able to view or download the new calendar.
|16 December||Solar Bulletin - Volume 67, No. 11||
The November Solar Bulletin is now available.
|15 December||Special Notice #263: SUPERNOVA 2011iy IN NGC 4984 = PSN J13085839-1531041||
December 15, 2011: IAU CBAT Central Bureau Electronic Telegram 2943 (Daniel W. E. Green, Ed.) announces the discovery of an apparent supernova in NGC 4984 by Koichi Itagaki, Yamagata, Japan, at unfiltered CCD magnitude 12.7 on 2011 Dec. 9.856 UT.
|12 December||Two AAVSO members team up to answer a young boy's dream||
The News Sun in Sebring, FL. published an article titled "Opening the Universe" about AAVSO members Chris Stephan and Gordon Myers work to support an autistic student's love of astronomy. Read the full article at the URL below!
|06 December||New VSP upgrades||
We held another VSP workday this week and tackled a few VSP bugs and feature requests. Most of the changes are minor and I'll list them below. We did not get to everything on the list. Our next workday will probably be in a couple of months. Feel free to submit feature requests or bug reports to aavso at aavso.org.
As always, thanks to Michael Koppelman and Chris Watson for taking time out of their day to help us!
|05 December||Shopping on Amazon.com||
|05 December||Year End Giving||
Tis the season
|02 December||JAAVSO v39, n2, is published||
|30 November||Solar Observer Celebrated in Local Paper||
Solar observer Ernest Richardson was recently given the AAVSO Solar Award, which was covered in a story by the Thorne and District Gazette newspaper titled "Swinton starman receives top award ". Read the article here.
|30 November||New results on FS Aurigae||
The paper "Optical and X-ray Variability of the Peculiar Cataclysmic Variable FS Aurigae with a Magnetic and Freely Precessing White Dwarf" by Vitaly Neustroev and collaborators is now available on arXiv.org. The paper was co-authored by several AAVSO observers, and involves data taken during the 2010-2011 observing campaign.
|29 November||Advancing Variable Star Astronomy available as a Kindle e-book||
The Advancing Variable Star Astronomy book that chronicles the first 100 years of the AAVSO is now available as an Amazon Kindle e-book. Of course, hard copies are still available from the AAVSO for $80 (20% discount), while supplies last.
|29 November||RASC Publishes David Levy's Log Books Online|
|22 November||Meet Donna Young||
Many of you already know Donna Young. She became affiliated with the AAVSO in the mid-1990's when she led the effort, and was the primary author, of Hands On Astrophysics (HOA). HOA was a variable star science education curriculum developed mainly for high school audiences (but is used by some college and advanced middle school classrooms).
|20 November||Chat Transcript w/AAVSO President Dr. Mario Motta|
|17 November||Charts and Sequences Update November 2011||
Dear AAVSO Observers,
|09 November||Please Take Our Demographic Survey||
We are conducting a survey to learn more about the demographics of our members, observers and anyone affiliated with or interested in the AAVSO. Information may be used for purposes such as making strategic plans for the AAVSO, writing grant applications, planning observing campaigns, writing papers about our membership, etc.
Identifiable survey data will never be shared with anyone outside of the AAVSO.
|07 November||ArXiv Preprint: Multiwavelength Campaign of Observations of AE Aqr||
Longtime friend of the AAVSO, Dr. Chris Mauche (Lawrence Livermore National Lab), has published a paper about AE Aqr in which he uses data from AAVSO observations. It was submitted for inclusion in the proceedings of the conference "The Golden Age of CVs and Related Objects".
|04 November||New eJAAVSO preprint: Periodicity Analysis of the Semiregular Variable Star EV Aquarii, by E. Terziev, J. R. Percy, A. A. Henden||
ej152: Periodicity Analysis of the Semiregular Variable Star
|02 November||Special Notice #262: Long-term monitoring of AGN targets extended||
November 2, 2011: The observing campaign described in AAVSO Alert Notice 443 (M. Templeton) has been extended through the end of November 2011. One of the original targets, NGC 6814, has been removed from the target list for the remainder of the campaign.
|02 November||Modern observations of Hubble's first-discovered Cepheid in M31||
The paper "Modern observations of Hubble's first-discovered Cepheid in M31" has been accepted for publication to PASP, and is now available on arXiv.org.
|28 October||AAVSO Newsletter 50 now online|