M57


Dan Crowson
 

M57 (NGC 6720, the ring nebula and many others) is a planetary nebula located approximately 2567 light-years away (Gaia DR2) in Lyra.

 

Ha – 26x1800s – 780 minutes – binned 1x1

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

 

900 minutes total exposure – 15 hours

 

Imaged over eleven nights in April, May and June, 2016 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/50737379993/sizes/l/

 

Dan

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

 


Bernard Miller
 

Nice Dan. You did a good job getting the outer Ha shell.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Saturday, December 19, 2020 5:23 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] M57

 

M57 (NGC 6720, the ring nebula and many others) is a planetary nebula located approximately 2567 light-years away (Gaia DR2) in Lyra.

 

Ha – 26x1800s – 780 minutes – binned 1x1

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

 

900 minutes total exposure – 15 hours

 

Imaged over eleven nights in April, May and June, 2016 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/50737379993/sizes/l/

 

Dan

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

 




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