Comet 103P/Hartley and the Owl Cluster Craig & Tammy Temple Image taken: Oct. 3, 2010 Location: Hendersonville, TN, USA Details: Hartley visits the Owl! Taken the evening of Oct. 3, 2010. Magnitude ~5.52. W.O. ZS66 @ f/4.7, QHY9-C CCD camera 45 x 2min. exposures ©2013, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.