Comets

 

Comet 17P/Holmes November 2007
Comet Holmes was discovered by Edwin Holmes in 1892 when it reached 5th magnitude near the Andromeda galaxy. Normally it is quite faint and it was lost for nearly 60 years. In October 2007 it brightened from magnitude 17 to magnitude 2.8 in only 42 hours. 
Above: A composite of 2 images taken on 29/10/07 and 02/11/07 with a 135mm telephoto lens which clearly shows the growth of the comet. These images where 30 second exposures.

Left: A stack of several 1 minutes exposures with the LX200 and HX516 on 02/11/06 around 23:00UTC

 

 

Comet Linear C/2000WM1 21:08 to 21:44UTC  14/11/01
Details

20x1 minute exposures at f3.3 with the LX200. Frame size is about 12x8'. The animation uses every other frame and is half size. 

The animation and still of Comet Linear show 2 ways of processing the same images. In the animation the frames are aligned using the stars whereas for the still the comet nucleus was used for alignment. At the time the comet was about magnitude 6.9 in Perseus. 
Comet Ikeya-Zhang 19:45GMT on 27/03/02

Ikeya-Zhang was magnitude 3.5 in Andromeda when I took this image.

The image is a composite of about 4x10sec exposures at f3.3 on the LX200. The comet was low in the west at the time and my attempts to image the entire tail were thwarted as it slipped behind a neighbour's house.  

Comet Swan Autumn 2006
Image taken on 09/10/06 at about 19:00. The comet was pretty low in the North West at the time and there were a few wisps of cloud about. 

This is stack of 5x1minute exposures with the HX516 and a 135mm telephoto lens at f2.8. The comet is between the stars HIP64212 and HIP64530 with the galaxy NGC5005 just below it.

 

 

An image from 26/10/06 at 20:00. The star just ahead of the comet is HD146489

The FOV is about 2 degrees wide

Comet McNaught 2006P1    January 2007
A bright naked eye comet seen here on 10/01/07. This image is a stack of 5 made with a Nikon Coolpix camera.

The comet was a beautiful sight through binoculars  

 

 

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