This is a reprocess of my latest wide field process of the Rosette Nebula otherwise known as Caldwell 49 using legacy data from Grand Mesa Observatory’s system 1a the William Optics Redcat together with a QHY16200A Monochrome CCD camera with Optolong Narrowband Filters. In this Hubble Palette version the H-Alpha is mapped to green, SII is mapped to red and OIII is mapped to the blue channel. While the colors in this image are not the true colors, the narrowband filters used in the making of this Hubble Palette image reveal much more of the hidden gasses not visible in a broadband image. In this new version I used the naturally colored stars from the LRGB data
Captured over 4 nights in November 2019 for a total acquisition time of 17.8 hours.
View in High Resolution
www.flickr.com/photos/terryhancock/49058519297/in/datepos...Technical Details
Captured and processed by: Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
November 1, 2, 3, 4th 2019
HA 430 min 43 x 600 sec
OIII 340 min 34 x 600 sec
SII 300 min 30 x 600 sec
Narrowband Filters by Optolong
Camera: QHY16200A
Gain 0, Offset 130 Calibrated with Dark and Bias Frames no Flat.
Optics: William Optics Redcat 51 APO @ F4.9
EQ Mount: Paramount ME
Image Acquisition software Maxim DL6
Pre Processing in Pixinsight
Post Processed in Photoshop CC
Starnet (star removal)
Comments