captured from grandmesaobservatory.com using the QHY367C Coldmos CMOS One Shot Color Camera and Walter Holloway’s 130mm Takahashi. This new CMOS camera never ceases to amaze me with the depth and detail I am able to get with only 4 minute exposures for RGB and 10 minutes for H-Alpha, my previous imagery of Orion for similar depth using CCD the total exposure times were more than double what I am now able to achieve with the QHY367C, as an avid Monochrome CCD user I used to tell people that a Mono Camera would require roughly a third of the exposure times than that of a One Shot Color CCD camera, that is not the case with this One Shot Color CMOS, if anything it is now the complete reverse.
As always I try to make the end result of the target as natural looking as possible, I hope you like it as much as I do however this is more Art than it is Science and will not please everyone.
For comparisons please refer to my earlier imagery of this region:
www.flickr.com/photos/terryhancock/albums/72157650412048611Image capture details
Terry Hancock downunderobservatory.com
Location: GrandMesaObservatory.com Whitewater, Colorado
Dates: October 21, NOV 22 2017
H-Alpha 16 x 10 min, (5nm Chroma Ha)
Total Integration time 5.8 hours
Camera: QHY367C
Gain 2850, Offset 76 with Dark Frames no Flat.
Optics: Walter Holloway's Takahashi FSQ 130 APO Refractor @ F5
EQ Mount: Paramount ME
Image Acquisition software Maxim DL5
Registered, Calibrated and Stacked in Deep Sky Stacker
Post Processed with Pixinsight and Photoshop CS6
The Orion Nebula is a prime example of an emission nebula, a cloud of cold gas and dust set aglow by the energetic blue and ultraviolet light of stars that form within the cloud. The hydrogen gas, along with traces of oxygen and other heavier elements, absorb and reradiate the starlight at characteristic colors of red, green, and blue.
The Orion Nebula is set alight by the Trapezium Cluster, so-named because its brightest stars form an irregular four-sided figure which is easily visible even in a small telescope. The Trapezium Cluster contains hundreds of stars which formed just a few hundred thousand years ago. The winds from the Trapezium’s brightest stars have blown a hole in the dusty shroud of the nebula and allowed astronomers to peer into the heart of this giant star-making machine.
Read more about the Orion Nebula in our e-book "The Armchair Astronomer"
cosmicpursuits.com/e-books/armchair-astronomer-volume-1-n...
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