M57

The raw material was taken during June 2013 and in 2008.

The picture consist of raw frames taken with LX200ACF 16" telescope. Cameras used were Atik 460ex mono and SBIG ST-8XME.

Exposure time: Ha=32*5min and LUM=64*1min taken with 16" and 460ex.

Baader 1.25" filters were used.

Few RGB frames from 2008 have been added to the picture, taken with 16" and SBIG ST-8XME, astronomik 1.25" filters were used.