Wizard Nebula (SH2-142)

[alan4908]

To improve my NB processing skills I thought I'd attempt the Wizard Nebula.

The image below is a bi-colour with Ha mapped to red and OIII mapped to blue and green. Since I didn't like the initial colours, I experimented with the Hue until I achieved colours that I liked for the nebula and star field.

Processed in Photoshop CC, CCDstack and PI, the image consists of 30min unguided subs and was taken with my Esprit 150 mounted on my GM1000HPS. 

Alan

 

LIGHTS: 16 Ha, 11 OIII x 1800s. DARKS: 30, FLATS:40, BIAS:100 all at -20C.