Another well-known object to try the new Atik 460 OSC out on! The Ring Nebula, M57, in the constellation of Lyra was pretty much right overhead when this was taken. It’s comprised of 23 x 5 min exposures through the MN190. 14th magnitude spiral galaxy IC1296 is faintly visible below and to the right of the nebula.
The Ring Nebula in Lyra, M57, is one of the most well known deep sky objects. With narrowband filters, response to H-alpha and OIII is strong, but there’s much less emission at the SII line. This image was put together using 30 x 1 min through each filter. Initially, all 90 frames were aligned and stacked; this was subsequently used for the red channel. H-alpha and OIII were were stacked separately and used for the green and blue channels respectively. The image was captured using an Atik 314L+ through a Skywatcher MN190.
Next time I’ll try without the FR to see if I can get a better image scale.