Sunday 18 November 2012

NGC7331 and NGC4631


NGC7331. This galaxy is the brightest of a group of galaxies located in the constellation of Pegasus. It lies at a distance of about forty million light years. This unguided image was captured using an Atik 314L CCD camera , a ten inch f/4.8 reflector. Sixty second sub frames and matching dark frames were captured, making total exposure time of thirty minutes for each colour channel:




NGC4631, The Whale galaxy. This edge on spiral galaxy lies at a distance of about thirty million light years in the constellation of Canes Venatici. This unguided image was captured using an Atik 314L CCD camera through a ten inch f/4.8 reflector.The total exposure times were thirty five minutes for each RGB colour filter, using sixty second sub frames with matching dark frames: