British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community

Sadr region


Expand image

About this observation
Paul Anthony Brierley
Time of observation
01/09/2017 - 10:35
NGC 1318 etal
Observing location
Fernilee Buxton Derbyshire
Olympus Zuiko 135mm TF
astro modified Canon 1000D
Skywatcher SA
Optolong 2" UHC filter
20x180 seconds


Yesterday because of the inclement weather. I decided to re visit an image that I recently took from Fernilee reservoir, on 2017 09 01.

It is mostly centred around the bright magnitude 2.2 star Gamma Cygni.

I part processed this image in St (star tools) to get the balance right, then re - worked it in CS5, with a conversion to mono using.

Image-adjustments-black and white. I then selected the red filter option, to convert to mono.

I think this picture looks considerably better now than the previous colour version. The UHC filter that was used. Has been able to bring out the nebulosity, and shows more contrast in this mono version than in the colour image.

Notice how the object at the top of this picture that looks S shaped is in fact. DWB111. A bright nebula that is more commonly known as the Propeller nebula.

I didn't notice this in the colour image. Which is why I love, monochrome CCD imaging.


Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.