M 62 - Globular cluster in Ophiuhus

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    12" ASA: LRGB 12" ASA: LRGB - 100% crop    
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© Velimir Popov & Emil Ivanov 2013

M 62 (also known as Messier 62 or NGC 6266) is a globular cluster in the constellation Ophiuchus. It was discovered in 1771 by Charles Messier. M62 is at a distance of about 22,500 light-years from Earth and measures some 100 light-years across. From studies conducted in the 1970s it is known that M62 contains at least 89 variable stars, many of them of the type RR Lyrae. It also contains several X-ray sources, thought to be close binary star systems, as well as millisecond pulsars in those binary systems. It is one of the most irregular globular clusters, this is probably due to its proximity to the center of the Galaxy (about 6100 light-years). The tidal forces cause the south-eastern area of the cluster to be more concentrated compared to the other.

Object details

Right Ascension 17:01:13 (h:m:s)
Declination -30:06:53 (deg:m:s)
Distance ~ 22.5 (kly)
Apparent Dimension 15 (arc min)


Image details


Center of field RA 17:01:13 (h:m:s)
Center of field DE -30:06:53 (deg:m:s)
Size 50.9 x 37.9 (arcmin)
Pixel scale: 1.03 (arcsec/pixel)
Orientation: Up is 177 degrees E of N
Charts and image details obtained from Astrometry.net
Optic(s): ASA 12" f 3,6 Astrograph (ASA)
Mount: ASA DDM85
Camera: FLI MicroLine 8300 CCD camera
Filters: Luminance, Red, Green, Blue, Astrodon filters
Dates/Times: 16 May 2013
Location: Namibia-TIVOLI ASTROFARM, S 23° 27' 40,9" / E 18° 01' 02,2"
Exp. Details: R:5x1 min, G:5x1 min, B:5x1 min, Total Exposure Time - 15 min
More details: Dark and flat frames reduction
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2013. All Rights Reserved
e-mail: info@irida-observatory.org
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