Comet 17P/Holmes and Comet 8P/Tuttle
30 December 2007

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Comet 17P/Holmes and 8P/Tuttle

Over two months after its outburst, Comet Holmes is still visible to the naked eye, slowly moving about the northern sky, slowly growing even larger, and also slowly fading. On the other hand, Comet Tuttle, another periodic comet, is rapidly brightening and speeding by, spending only a few days in this part of the sky.

Click on the photo to see inset enlargements of the comets taken on the same night at higher magnification. Both inset images are at the same scale.

Date/Time:    30 December 2007
Location: Vanishing Point Observatory (OCA Anza Site)
Scope: Pentax 75mm FL lens @ f/4.5 and
Borg 125EDF2.8 @ f/2.8 (inset images)
Mount: Losmandy Titan
Guider: SBIG STV / Mini Borg 45ED
Camera: Planet Town 6x7 and Mitsuboshi 6x9 (inset images)
Media/Film: Kodak Ektachrome E200 (+2 push)
Exposure: 1x20 min. (1x10 min. for Comet Tuttle inset, 1x30 min. for Comet Holmes inset).

Copyright 2007 by David A. Kodama, All Rights Reserved