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JAAVSO Call for Papers for Special epsilon Aurigae Issue

CALL FOR PAPERS

for a special edition of the

Journal of the American Association of Variable Star Observers

dedicated to epsilon Aurigae, similar objects and amateur observing techniques of bright stars.

Alert Notice 444: Nova Lupi 2011 [PR Lup]

August 9, 2011

Event: Nova in Lupus  -  Nova Lupi 2011   =  PNV J14542000-5505030  [PR Lup]

Discovered by: Nicholas Brown, Quinns Rocks, Western Australia  [vsnet-alert 13560]

Discovery Date: 2011 August 4.73 UT

Discovery Magnitude: magnitude 10.2 photographic unfiltered, on two films, using a 135F2 cannon lens and tmax 400 film

Special Notice #247: Possible Nova in Lupus

Possible Nova in Lupus
August 7, 2011

Nick Brown in vsnet-alert 13560 posts about a possible new nova from his photographic survey:


"The star appears at mag 10.2 photographic, on 2 films taken on August 4.73UT using a 135F2 cannon lens and tmax 400 film.unfiltered. No object is present on film taken on july 5.85UT down to 11.7pg. No previous variable stars are reported at this near position."

The coordinates are: 14 54 20  -55 05 03  J2000

Special Notice #246: Continued Monitoring of epsilon Aurigae

August 8, 2011: The bright star epsilon Aurigae has emerged from its most recent eclipse that began in August, 2009. A BVRIJH light curve for the last 365 days of the eclipse can be viewed at the following URL.

http://tinyurl.com/epsaur

Effects of dust on light-curves of ε Aur type stars (updated)

100728 Update: Dr. Budaj has offered a short description of the paper with a nice illustration, which can be read via the Citizen Sky forums.

The following is an abstract for a paper recently been posted to ArXiv (and accepted for publication in A&A Letters). The paper is based on your AAVSO observations of apsilon Aurigae and acknowledges AAVSO support.

Click here to read the paper.

AAVSO Newsletter 49 now online

AAVSO Newsletter 49, July 2011, is now online.

http://www.aavso.org/aavso-newsletter

Week of Online Chats for Beginners: July 25-29

We will be hosting three online chat sessions for beginners to the AAVSO during the week of July 25, 2011. Below are the list of the chat topics. However, feel free to bring up any topic at any chat.

The chat room can be accessed by pointing your browser here. Details about how to use dedicated chat clients are here.

Beginner Chat #1: Visual Observing
Monday, July 25 at 9pm eastern (-4UT)

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