M 51

 

Image by Marc Anderson using his 18" F/6 and CB245 detector, 120 s exposure. B. Martin, TKUCO 12.5" F4.8. Sum of 12 60 s exposures. March 16/2001, ST-7E camera

 

The Whirlpool nebula in Canes Venatici is surely one of the most frequently photographed galaxies - and for good reason! It is a wonderful "pinwheel" shape and a classic example of galactic interaction .

Below is an maximum entropy processed version of the March 16/2001 TKUCO image.