M51 galaxy, a 6 hours exposure picture.

Taken mostly during April 2014

Equipment used:

LX200ACF 16" telescope and camera Atik 460ex mono.

Exposure time:

L=132 min. in total, in 2 min. subs.

RGB ~20 min. in each color, 2 min. subs.

Ha=18*5 min, OIII=18*5min.