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Sunday, August 28, 2011
As a follow up to the previous post on white light observing with the 4 inch f/11 achromat, I observed and sketched Comet C/2009 P1 Garradd tonight. There was a bit of dust and smoke in the atmosphere all day and I think that the transparency was impacted tonight. Contrast in the scope is excellent, and I do believe that I was seeing a broad and faint tail extending in an easterly direction from the nucleus.
Sketch was completed at 0325 UT under average skies, using a 10mm Pentax XW (110X). The comet has an estimated magnitude of 8.1