NGC6888 - Crescent Nebula RGB+HA

The Crescent Nebula, also known as NGC 6888 is an emission nebula in the constellation Cygnus, it is approximately 5000 light years from earth.

 

The Image consists of:

33x5Min ISO 1600 RGB Image

35x5Min ISO 1600 HA on Red Channel Only

17 Dark Frames

53 Flat Frames for HA

53 Flat frames for RGB

 

Equipment used:

Canon 500D Modified and Cooled Imaging Camera

QHY5 CCD Autoguider

Astro-Tech AT8RC Imaginc Scope

Skywatcher NEQ6Pro GEM Mount

 

Software used for Image Acquisition:

Imaging: BackyardEOS (www.backyardeos.com)

Guiding: PHDGuide

 

Processing:

Nebulosity 2 for Preliminary Dark Frame and Flat Frame subtraction and stacking

 

Photoshop CS5 for post processing and stretching for both the RGB Image and HA Image, Photoshop was also used to merge the HA Data into the red channel of the RGB Image

 

Noise Ninja for Noise Reduction

Done