Globular cluster NGC 4147

Posted by dcrowson
on Monday, April 24, 2017

NGC 4147 is a Shapley-Sawyer class VI (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 60,000 light-years away in Coma Berenices.

Luminance – 40x600s – 400 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2

520 minutes total exposure – 8 hours 40 minutes

Imaged April 2nd, 4th and 23rd, 2017 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/33436814673/sizes/l

Most of the luminance was taken with the moon so I just let it click away for a couple of nights.

Comments
To leave a comment you must be a member of our community.
Login to your account now, or register for an account to start participating.
No one has commented yet.

Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.

ADVERTISEMENT

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter.

ADVERTISEMENT
ADVERTISEMENT
Find us on Facebook