Sharpless 217

Dan Crowson
 

Sharpless 217 (LBN 745) is a hydrogen alpha emission region located approximately 14,200 light-years away (https://iopscience.iop.org/article/10.1088/0004-6256/150/5/147/pdf) in Auriga.

 

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

360 minutes total exposure – 6 hours

 

Imaged March 5th and 6th, 2018 and December 27th and 29th, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/49736355771/sizes/l/

 

I also captured 12 hours of Ha but it didn’t really add anything to the image.

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

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