Not sure if anybody has not seen this but in case. There is a challenging challenge on Citizen Sky http://www.citizensky.org/content/mini-campaign-eclipse-zeta-aurigae It's a mini campaign on zeta Aurigae. It is undergoing a short eclipse (compared to epsilon Aurigae) with a dip of only 0.1 mag sometime this month. Thus it will be quite a feat for even advanced observers. Here is some information on it: Zeta Aurigae is a bright (V ~ 3.75 out of eclipse), northern eclipsing variable with a known period of 2.66 years. The system contains a hot, luminous B7V star and a more luminous K5II star. During primary eclipse (which occurred in March 2009), the blue B7V star is obscured by the larger orange K5II star. The secondary eclipse is more difficult to detect, because the B7V star obscures a small portion of the K5II star's light. The approximate date of the eclipse is November 17, 2009, with an anticipated duration of about 40 days. The K5II star is known to exhibit variations of 0.05 magnitude, therefore high precision photometry is necessary for this short campaign. The anticipated eclipse depth is very shallow, perhaps 0.1 mag, and is not well characterized. Given this information, obtaining visual estimates of the system may prove to be difficult, and obtaining good photometry of the eclipse may be a challenge. Therefore I request that Experienced observers, both photometric and visual contribute observations of the eclipse during the remainder of the month of November and the first few weeks of December. Inexperienced observers are encouraged to add Zeta Aurigae to the list of 10-star tutorial target objects and submit their data as detailed in the 10-star tutorial in order to hone their observing skills. Visual observers may find this particular star difficult to observe due to the anticipated slight change in magnitude. Please observe the star two or three times per week, using the charts available via. VSP or from the AAVSO website. Instrumental observers of all kinds are also requested to take part. Photoelectric observers belonging to the AAVSO PEP-V program may submit data as usual via. the WebObs feature of the Blue&Gold section of the AAVSO website. If your interested, you can go here http://www.citizensky.org/forum/mini-observing-campaign-secondary-eclipse-ze... and read the entire link.