FWIW, CalSky is putting the comet at mag 6.0. patrick On 01 Nov 2010, at 13:26, Canopus56 wrote:

Now that the Moon is out of the way, I briefly tried Hartley last night at 2:00 am with a quick peak using 50mm binoculars from SLC. Yoshida's comet page still shows it at mag 5.0. I used an updated planetarium program, but I could not pick it out from a star field that included mag 6 stars. If the high-pressure zone holds tonight, I'll probably try it from Little Mtn. tonight. Clear Skies - Kurt