Sunday, 5 September 2010

Little ring galaxy

This is the last image made with the big telescope before the mirror was taken for an emergency realuminisation. It's a wierd 'little' galaxy 72 million l.y. away in Pegasus, with a bright yellow nucleus and a detached blue ring surrounding it. There is a larger halo, that doesn't really show up in this image, comprising of 31 only 12 second images at f/3. I was having issues with the tracking so I had to keep the pics short, but on closer inspection, each image still had slight star trails or a touch azimuthal shake or wobble. You can see the colour of the nucleus compared with the star nearby. It's about a 7' x 9' field centred on NGC 7742.

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