M97, the internal shells of the owl  nebula is shown.

Taken 28/29. March-2014

Equipment used:

LX200ACF 16" telescope and camera Atik 460ex.

Exposure time:

L=40 min. in total, in 1/2 min. subs.

Ha=13*5 min, OIII=14*5 min, SII=19*5 min.