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Alert Notice 427: Observing campaign on BM Ori and the Trapezium region

November 23, 2010: The AAVSO requests ground-based observations of the Trapezium region of the Orion Nebula (M42), along with surrounding regions in Orion, in conjunction with upcoming observations with the MOST Satellite.  All AAVSO observers are encouraged to participate in this project, and we are requesting observations for a number of different targets from both instrumental and visual observers.

Special Notice #224: Possible outburst of SDSS_J160501.35+203056.9

November 21, 2010: Hitoshki Yamaoka reports in VSNET-ALERT 12411 of the observation by Itagaki of SDSS J160501.35+203056.9, a suspected cataclysmic variable.  In quiescence, it is about mag20.  Itagaki-san's observation on 2010-11-21 was 12.0 unfiltered.  If confirmed, this would yield an outburst magnitude of 8 magnitudes, and would place it in the realm of the WZ Sge class, rare stars in the cataclysmic category that have superoutburst cycles of decades.  The spectra in Szkody, et al.

Special Notice #223: BL Lac object 3C 454.3 undergoing bright flare

November 18, 2010: As was noted by AAVSO observer E. Erdelyi (Carlsbad, CA, USA) in a post to cvnet-discussion, the BL Lac object 3C 454.3 (AUID 000-BDC-612) appears to be undergoing a bright flare; the object was recorded by Erdelyi at V=13.659(0.013) on 2010 November 10.2708 (JD 2455510.7708). The last flare of comparable brightness was observed in 2007, when the object reached V ~ 13.4 around JD 2454335 (late August 2007).

Web Chat with our New Web Developer

Join us in the AAVSO Chat Room on Wednesday, November 17 from 2-3pm eastern (7-8pm UT) for a special chat with Will McMain, the newest AAVSO staff member. Will was hired in September as our new Web Developer and has been busy updating and adding items to the new web site. Many of you met him at the fall meeting where he ran the AV for the Saturday session and also hung out with us in the evenings. A staff bio is here:

Fall Meeting: Presentation Files

Below are presentation files that are available for download (as ppt or pdf files) from the 99th Annual Meeting of the AAVSO.  Click on the title to view or download the presentation file.

Meetings Survey

Rebecca and I have put together a 8-item survey about AAVSO meetings. The goal of this survey is to give us information about what is important to you when you make decisions about meeting attendance. It includes questions about preferred locations, meeting structure, content of talks, etc. If you have a moment, please give us 5-10 minutes to take the survey. We would like everyone interested to take the survey, whether you have attended a prior meeting or not.

http://www.surveymonkey.com/s/NQZ2QRZ

Special Notice #222: Bright Supernova in UGC 5189A: SN 2010jl

November 5, 2010: We have been informed by Tim Puckett and by the Central Bureau for Astronomical Telegrams (CBET 2532, Daniel W. E. Green, Ed.) of the discovery of a bright possible supernova in UGC 5189A by J. Newton and Puckett, Portal, AZ, on November 3.52 UT at unfiltered magnitude 13.5. Confirming images (limiting magnitude 19.1) by Puckett on Nov. 4.50 UT showed the object at magnitude 12.9./p>

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