comet gallery

	11th of November 2007 - John Lockett took this image of comet 17P/Holmes. He used his Starlight Express SXV H16 CCD camera with an IR block filter at prime focus of his 80mm Apo refractor. Thsi is a single 3 minute exposure with no dark frames used.. Again there is a definte difference visible in the sharpness of the boundary at the edge of the coma between the left and right of the image.
	Around the 7th of November 2007 - John Lockett took this image of comet 17P/Holmes. He used his Canon 20D DSLR with a 0.63 FR on an 8" LX200 SCT. Ten exposures of 30s each were stacked to produce the final image. Notice how there is a definte difference in the sharpness of the boundary at the edge of the coma between the left and right of the image. This feature was clearly visible in the eyepiece when the comet was observed at the Knavesmire star party on the evening of the 7th of November 2007. The small bright point visible just leftof center is the "nucleus" of the comet, which is only a few miles in diameter, but appears much larger due to the brightness of the outgassing material in its immediate vicinity.
	Around the 7th of November 2007 - John Lockett took this lovely wide field image of Perseus showing comet 17P/Holmes. He used his Canon 20D DSLR to take a single 4 minute exposure using a 64mm lens at F5.6, and a IDAS light pollution filter. The camera was mounted on an Astrotrac platform which has produced excellent tracking.
	3rd November 2007 - This is a zoomed crop of Simon Howard's image below of the bright comet P/Holmes in Perseus from Sheffield using his 350D Canon DSLR.
	3rd November 2007 - Simon Howard took this wide field view of the bright comet P/Holmes in Perseus from Sheffield using his 350D Canon DSLR. This is a single exposure of 8 seconds using a 300mm lens at F5.6 and ISO 800.
	29th October 2007 - Paul Buglass took this close up view of the bright comet P/Holmes in Perseus at 19:20 using a Canon 350D DSLR at prime focus on a Celestron 14" SCT. The focus is far from perfect, but it was taken quickly between cloud banks.
	28th October 2007 - Simon Howard took this lovely wide field view of the bright comet P/Holmes in Perseus from Sheffield using his 350D Canon DSLR with a 105mm lens. This is a single exposure of 10 seconds at ISO800.
	28th October 2007 - This is a crop of Simon Howard's wide field view of the bright comet P/Holmes in Perseus, shown above. You can see the bright core around the nucleus, the dust coma and the fainter outer greenish gas cloud.
	10th January 2007 - This is the same image as below, but this time processed using curves in Photoshop to maximise the visibility of the coma and long tail of this beautiful comet. Martin Whipp captured this excellent image of comet McNaught from the middle of York using a video camera on the evening of the 10th of January 2007 at approximately 4:45pm. 10 searate frames from the video were captured as BMP files, then K3CCDTools was used to align them and stack them to reduce noise and increase the clarity of the image. Some basic levels and curves adjustment were made in Photoshop to maximise the visibility of the tail.
	10th January 2007 - Martin Whipp captured this excellent image of comet McNaught from the middle of York, using a video camera, on the evening of the 10th of January 2007 at approximately 4:45pm. 10 separate frames from the video were captured as BMP files, then K3CCDTools was used to align them and stack them to reduce noise and increase the clarity of the image. Some basic level adjustment was made in Photoshop to approximate the naked eye view.
	John Roberts captured this excellent image of comet Maccholz at 21:25pm on the 29th of December 2004 as it moved through Perseus. He used a Starlight Express MX7C CCD camera attached to his Meade LX50 at prime focus. The image is a single 10 second exposure.
	Paul Buglass used his modified web camera to image comet C/2004 Q2 Maccholz on the 4th January 2005, 58 images, each of 15 seconds exposure, were stacked together to give the final result. A 80mm F5 refractor with a 0.5 focal reducer was used. The images were stacked using the comet's nucleus as a reference point, therefore the stars have trailed, revealing the motion of the comet against the background stars during the 15 minutes over which the many images were captured
	Neil Ward used his Nikon D70 digital SLR camera to image comet C/2004 Q2 Maccholz, to produce this fine wide-field view. If you look carefully, and your PC screen is adjusted properly, you can see that it has two tails. One tail at the 10 O'clock position and a fainter, but broader one, at 6 O'clock. © NJA Ward 2004. All Rights Reserved.
	Martin Whipp used his Mintron video camera to film comet C/2004 Q2 Maccholz for a short while on the 31st Dec 2004 at 2245 GMT, and then stacked 55 images together to give the final result. If you look carefully, and your PC screen is adjusted properly, you can see that it has two tails. One tail at the 10 O'clock position and a fainter, but broader one, at 6 O'clock.
	Martin Whipp took this image of Comet C 2001 Q4 with his Mintron video camera and a normal 70mm video lens. M44 (Bee hive cluster) can be seen to the lower left of the comet.