I can calculate the motions of the heavenly bodies, but not the madness of people

— Sir Isaac Newton

M51

M51

Again M51 (seems to be popular on this site) taken on Saturday evening when the sky was clear. I notice some dust mites on image, need to clean camera. Just over one hour exposure. Also note that there is another galaxy in the lower right hand corner, 14.5 magnitude IC4263, faint but large.