Crescent nebula - NGC 6888 in HaRGB


This is the image of the Crescent Nebula - NGC 6888, that I could take after months of clouds at my location. The image is a composition of Ha and RGB exposures with a modified Canon T1i working on a C925 EdgeHD with hyperstar at f2.3. Mount is an iOptron CEM60.

The image has 10.2 hour total exposure distributed this way:

RGB: 2 hr 27 min (49 x 3 min) at ISO 800

Ha: 7 hr 45 min (93 x 5 min) at ISO 1600 for Ha

Here is just the Ha version:

Captured with Sequence Generator Pro (each night right on the target with perfect meridian flips!), guided with PHD2 and processed with Pixinsight.

Thanks for looking!


Bogotá, Colombia