Re: FW: M2
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Congratulations, Gregg & Dan.
From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Dan Crowson
Sent: Friday, October 11, 2019 12:13 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] FW: M2
ASEM and Dark Sky New Mexico are well-represented in the December, 2019 issue of Sky & Telescope:
Gregg Ruppel’s image of Antares and M4 can be found in the Gallery section on page 76.
My image of M2 can be found in the Gallery section on page 77.
M2 (NGC 7089) is a Shapley-Sawyer class II (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 37,500 light-years away in Aquarius.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged August 26th and 31st and September 3rd, 2019 from Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
Also see my previous 600mm refractor image here - https://www.flickr.com/photos/dcrowson/28882776594.