A mosaic from Butterfly to the "Cirrus" area of Cygnus

Nebulae

in constellation Cygnus

A two panel mosaic, bicolor composition from H-alpha (Red) and O-III (Green & Blue).

This combination is very close to a visual spectrum.

A two panel mosaic of H-alpha emission alone.

I noticed, that my two projects, Cirrus of Cygnus and Butterfly to Crescent, are partly overlapping.

I will shoot couple of more panels to build a six panel mosaic from this area, when ever the weather allows me to do so...

I wen trough my raw images for Butterfly to Crescent project and I noticed, there was a one O-III frame usable, others was destroyed by speeding clouds. I processed the O-III frame and made a bicolor mosaic composition at top.

Technical details:

Processing work flow:

Image acquisition, MaxiDL v5.07.

Stacked and calibrated in CCDStack2.

Deconvolution with a CCDStack2 Positive Constraint, 33 iterations, added at 40% weight

Levels, curves and color combine in PS CS3.

Optics, Canon EF 200mm camera lens at f1.8

Camera, QHY9

Image Scale, ~5 arcseconds/pixel

Guiding, Meade LX200 GPS 12" and a Lodestar guider

Filter, Baader 7nm H-alpha and Baader O-III 8,5nm

Exposures for two panels,

Panel 1(Left), 

H-a, 6x600s Binned 1x1

O-III, 1x300s Binned 2x2

Panel 2(Right), 

H-a, 4x900s Binned 1x1

O-III, 6x300s Binned 3x3