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1. BL LAC MINI CAMPAIGN FOR NOVEMBER 12-14

The AAVSO and the GLAST Telescope Network (GTN) are requesting intensive CCD observations of the blazar BL Lac for November 12-14. The AAVSO International High Energy Network has been monitoring BL Lac as part of an ongoing blazar monitoring campaign in support of GTN. Recent observations reported to the AAVSO include interesting episodes of microvariability.

AAVSO and GTN members are being asked to observe BL Lac as much as possible for the period November 12 -14 (UT). High-precision time series observations in V and I are requested. Precision of 0.01 magnitude is requested so set your exposure length appropriately or stack your images to get the needed SNR. Take care with your flats and darks.

Charts with V and I comparison stars are available here:
http://www.aavso.org/cgi-bin/searchcharts3.pl?name=2158%2B41

Updated BL Lac light curves can be plotted here:
http://www.aavso.org/data/lcg/

Discussion of the campaign will occur on the AAVSO-Photometry discussion group. Archives and subscription info:
http://www.aavso.org/mailman/listinfo/aavso-photometry

Special thanks to CCD observers Robert James (JM), Diego Rodriguez (RZD), Walter MacDonald (MDW) Steve Robinson (RSE), Radu Corlan (CXR) and Alexander Corlan (CUA) along with visual observers Mike Simonsen (SXN), Gary Poyner (PYG), Jose Ripero (OJR), Eddy Muyllaert (MUY), Wolfgang Volmann (VOL), Jani Virtanen (VJA), and Chris Jones (JCN) for the monitoring that has led to this campaign.

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2. REQUEST FOR CONTINUED MONITORING OF IL AQR

The IL Aqr/GJ876 exoplanet campaign results are still being analysed. Even though the transit window has passed we still need nightly monitoring of IL Aqr in V to look for flaring behavior, evidence of star spots and some suspected periods between 20-40 days that have been published in the literature but not confirmed.

Please observe IL Aqr in V every night that you are out observing until the end of this year. Make your observations as precise as possible. If you detect any activity, please begin time series observations for as long as possible and contact the AAVSO or AAVSO-Photometry Discussion Group immediately so we may organize other observers.

Charts and campaign info here:
http://www.aavso.org/news/ilaqr.shtml

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The AAVSO has many free online publications including "Eyepiece Views", a similar newsletter intended for visual observers. To learn more and subscribe visit: http://www.aavso.org/mailinglists.stm

Good observing!

Aaron Price, AAVSO Technical Assistant (PAH)
Gary Walker, Chairman of the AAVSO CCD Committee (WGR)

Copyright 2004, American Association of Variable Star Observers