IC 1257

Posted by dcrowson
on Saturday, June 22, 2019
IC 1257 is a heavily reddened globular cluster located approximately 81,500 light-years away in Ophiuchus. Originally found in in 1890 while looking for a comet, this one was not determined to be a globular cluster until 1997 - http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1997AJ....113..688H&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf.

Luminance – 12x300s – binned 1x1 – 60 minutes
RGB – 8x180s – 24 minutes each – binned 2x2

132 minutes total exposure – 2 hours 12 minutes

Imaged June 20th, 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/48110470673/sizes/l
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