NGC 6752 - Globular cluster in Pavo

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  12" ASA: LRGB 12" ASA: LRGB crop      
  Size: 2000 px Size: 2000 px      
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© Velimir Popov & Emil Ivanov 2014

Some 13,000 light-years away toward the southern constellation Pavo, the globular star cluster NGC 6752 roams the halo of our Milky Way galaxy. Over 10 billion years old, NGC 6752 follows clusters Omega Centauri and 47 Tucanae as the third brightest globular in planet Earth's night sky. It holds over 100 thousand stars in a sphere about 100 light-years in diameter. Telescopic explorations of the NGC 6752 have found that a remarkable fraction of the stars near the cluster's core, are multiple star systems. They also reveal the presence of blue straggle stars, stars which appear to be too young and massive to exist in a cluster whose stars are all expected to be at least twice as old as the Sun. The blue stragglers are thought to be formed by star mergers and collisions in the dense stellar environment at the cluster's core. This sharp color composite also features the cluster's ancient red giant stars in yellowish hues. (Explanation from APOD)


Image details:


Center of field RA 19:10:43(h:m:s)
Center of field DE -60:00:17 (deg:m:s)
Size 56.9 x 42.6 (arcmin)
Pixel scale: 1.03 (arcsec/pixel)
Orientation: Up is -4.44 degrees E of N
Charts and image details obtained from
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: 27 August 2014
Location: Namibia-TIVOLI ASTROFARM, S 23° 27' 40,9" / E 18° 01' 02,2"
Exp. Details: R:3x10min, G:3x10min, B:3x10min,, Bin1,
  Total Exposure Time - 240 min
More details: Dark and flat frames reduction,
Processing: PixInsight / PS
Copyright: Velimir Popov and Emil Ivanov 2014. All Rights Reserved
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