M51 galaxy. Copyright, Morten la Cour and Niels V. Christensen

M51, a LHaRGBOIII picture, a joint venture, 2013-2014.

Morten la Cour, subs taken during March 2013.

M51 5½ hour L, 3x70 min. RBG and 4 hours Ha.

300s subs on LRGB and 900s subs on Ha.

Equipment, Orion optics CT10 with paracorr, BW1360mm, camera: QSI583ws.

Niels V. Christensen, subs taken during April 2013 and April 2014.

M51 132 min. L, 3x20 min. RBG, 1,5 hours Ha and OIII.

120s subs on LRGB and 300s subs on Ha and OIII.

Equipment, LX200ACF 16” with lepus 0.62X reducer, camera: Atik 460ex mono binned 2*2.