M51 picture selected as the S&T Editor's Choice Archive picture in May-2014 .

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.

Also shown, in the S&T July online version, on the web.