This is an image of the Triangulum Galaxy – Messier 33 – and it has been a little while in the making.
This image is a composite of data taken with the Sky90 refractor and M26C OSC CCD, the Hyperstar III on the Celestron C11 with the M25C OSC CCD, and finally the Hyperstar 4 on the Celestron C11 with the ASI 2600MC Pro OSC CMOS camera.
There is well in excess of 20-hours of data in this image.
The image was expertly processed by Noel Carboni (Pro Digital Software) in Florida USA