Sharpless 168 + 169


Dan Crowson
 

Sharpless 168 (LBN 568 and others) is the bright HII region at the center located approximately 14,350 light-years away in Cassiopeia.

 

Sharpless 169 is a larger but much fainter HII region located in the bottom left quadrant. Located approximately 6,800 light-years away, it appears to be ionized by BD+59 2786, the brightest star in the area.

 

LDN 1255 is the dark nebula above at to the left of Sharpless 168.

 

Ha – 24x1800s – 720 minutes – binned 1x1

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

 

840 minutes total exposure – 14 hours

 

Imaged July 7th, August 26th and September 4th, 5th and 10th, 2020 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

HaRGB - https://www.flickr.com/photos/dcrowson/51032942942/sizes/l/

 

Dan

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

 


Brian Ottum
 

Bloody ink blot

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Saturday, March 13, 2021 12:12 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Sharpless 168 + 169

 

Sharpless 168 (LBN 568 and others) is the bright HII region at the center located approximately 14,350 light-years away in Cassiopeia.

 

Sharpless 169 is a larger but much fainter HII region located in the bottom left quadrant. Located approximately 6,800 light-years away, it appears to be ionized by BD+59 2786, the brightest star in the area.

 

LDN 1255 is the dark nebula above at to the left of Sharpless 168.

 

Ha – 24x1800s – 720 minutes – binned 1x1

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

 

840 minutes total exposure – 14 hours

 

Imaged July 7th, August 26th and September 4th, 5th and 10th, 2020 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

HaRGB - https://www.flickr.com/photos/dcrowson/51032942942/sizes/l/

 

Dan

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