NGC 6755
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Dan Crowson
NGC 6755 is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class II 2 r open cluster located approximately 4,600 light-years away in Aquila. The upper portion is also cataloged as Czernik 39.
Luminance – 24x300s – binned 1x1 – 120 minutes RGB – 8x180s – 24 minutes each – binned 2x2
182 minutes total exposure – 3 hours 2 minutes
Imaged May 15th and 16th and September 19th and 20th, 2020 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/50438182563/sizes/l/
Dan ----
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Bernard Miller
Nice job Dan. This one looks like it is right on the cusp between an open and a globular.
Bernard
From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Thursday, October 8, 2020 3:18 PM To: 'Dan Crowson' <dcrowson@...> Subject: [DarkSkyNewMexico] NGC 6755
NGC 6755 is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class II 2 r open cluster located approximately 4,600 light-years away in Aquila. The upper portion is also cataloged as Czernik 39.
Luminance – 24x300s – binned 1x1 – 120 minutes RGB – 8x180s – 24 minutes each – binned 2x2
182 minutes total exposure – 3 hours 2 minutes
Imaged May 15th and 16th and September 19th and 20th, 2020 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/50438182563/sizes/l/
Dan ----
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Gregg Ruppel
Nice one...Thanks for sharing.
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Gregg www.greggsastronomy.com
On Oct 8, 2020, at 3:17 PM, Dan Crowson <dcrowson@...> wrote:
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