Contains:  Other
Cocoon Nebula IC5146 LRGB, Terry Hancock

Cocoon Nebula IC5146 LRGB

Cocoon Nebula IC5146 LRGB, Terry Hancock

Cocoon Nebula IC5146 LRGB

Description

This is work in progress and my very first LRGB (color + luminance) image using the AT10RC, the weather has prevented me from capturing some descent sub exposures for the blue channel and I was only able to get 3 x 15 minute subs following another fierce lightning storm on monday morning and they were a little out of round due to the bad seeing. I hope to update this image soon if the weather cooperates.



Cheers & Clear Skies

Terry

Terry Hancock

www.downunderobservatory.com

Location: DownUnder Observatory, Fremont MI

Date of Shoot 21st thru July 31 2011

Camera: QHY9M monochrome CCD

21 x 15 min sub exposures Luminance bin 2x2

7x 15 min sub exposures RED bin 2x2

7x 15 min sub exposures GREEN bin 2x2

3x 15 min sub exposures BLUE bin 2x2

Total exposure time 9.5 hours

Scope: Astro Tech AT10RC F8 Ritchey-Chrétien using AT2FF Field Flattener.

Autoguided using QHY5 autoguider

Guide scope Celestron Short Tube 80mm refractor.

Paramount GT-1100S German Equatorial Mount (with MKS 4000)

Processed with Photoshop CS5.

Comments

Histogram

Cocoon Nebula IC5146 LRGB, Terry Hancock