Periodic Comet P / Holmes (17)P 2007 Oct 28th and Nov 15th
Above image taken 2007 November 15th
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The brightest star in the coma is mag 7.98 GSC 33320 3161 and Mirphak is the
bright field star towards lower right of the image.
Above image taken 2007 October 28th
Both images taken from Leigh on Sea UK
200mm fl telephoto lens at f 5.6
No autoguiding piggyback on 250mm aperture LX200 Mount
Starlight Xpress HX916 CCD camera
No filters
2007 November 15th image Luminance 10 mins 1x1 All 60 second sub exposures.
2007 October 28th image Luminance 4 mins 1x1
All 10 second sub exposures.
The increase in size of the comet's coma is very obvious in the 17 days between these two images. For the October image the sky was transparent after earlier rain, but the moon was close by. The November image was taken under slightly misty but darker albeit light polluted skies. This Comet was easily visible with the naked eye.