This latest process of mine (part of a set of 2 images of SH2-171) from Grand Mesa Observatory was captured using the QHY367C for Color and for Narrowband I processed as Hubble Palette and I used the stars from the RGB image. Telescope used was the Takahashi FSQ 130 F5 APO Refractor “System 1” on Grand Mesa Observatory’s subscriptions.
Total Integration Time 14.8 hours
HST Version
www.flickr.com/photos/terryhancock/46721646704/in/photost...You can also see this latest set of images in a new video on YouTube
youtu.be/APYYYpwbCzYImage capture details
By Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
QHY367C
Dates: over 4 nights Oct 10th, 16th, 19th, Nov 9th 2018
Color 280 min, 70 x 240 sec
H Alpha 330 min, 33 x 600 sec
OIII 160 min, 16 x 600 sec
SII 120 min, 12 x 600 sec
Camera: QHY367C
Offset 72, Gain 2850 Calibrated with flat, Dark & Bias
Optics: Takahashi 130 FSQ APO Refractor
Mount: Paramount ME
Filters: Chroma Ha, OIII and SII 5nm
Image Acquisition software Maxim DL5
Pre Processed using Pixinsight
Pro Processed using Photoshop CC
Encompassing the emission region designated Sharpless 171 is the star forming complex NGC7822 lying at a distance of roughly 3200 light years away in the constellation Cepheus is a spectacular example of a stellar nursery. The emission nebula shines as a result of the ionizing radiation from one of the hottest stars known; BD+66, which has a luminosity 100,000 times that of our sun. Curiously enough, BD+66 is also an eclipsing binary, which means that it is actually two stars in orbiting each other and are aligned in such a way that one star occasionally eclipses the other from our perspective, is a very young star forming region; no more than a few million years old. It will continue birthing new stars for several million more years until the radiation from the new stars blows away the last remnants of hydrogen gas, leaving behind a small cluster of young bright stars.
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