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Omega Centauri Globular Cluster. Image taken in UP Diliman, Quezon City, Philippines using a 4-in f/9 refractor and a Canon 450D DSLR. 30-sec exposure, ISO 1600, tracking mount. Photo Credit: Anthony Urbano

M13 Globular Cluster in Hercules. Image taken in UP Diliman, Quezon City, Philippines using a 4-in f/9 refractor and a Canon 450D DSLR. 30-sec exposure, ISO 1600, tracking mount. © Anthony Urbano

Pleiades, also called the Seven Sisters, is a galactic star cluster in the constellation Taurus, about 415 light-years away. The faint bluish glow of the nebula surrounding each star is visible in this photo. This image was taken under the dark clear skies of Basud, Camarines Norte, Philippines, using a Sky-Watcher 4-in f/9 refractor, Kenko NES mount, a Canon 450D DSLR, and a home-built autoguider. Photo Credit: Anthony Urbano

Beehive Cluster (M44). Image taken with a Sky-Watcher 100 ED on Kenko NES mount, Canon 450D DSLR prime focus at f/9, ISO 1600, 1×240 sec exposure, December 2011, Basud, Camarines Norte © Anthony Urbano

Just one degree west of the bright star Antares (2 moon diameters), M4 is one of the easy-to-find globular clusters. It is 100 light-years in diameter and only 7000 light-years away (rather close in terms of globular cluster standards). Sky-Watcher 100 ED 4 in f/9 refractor, Kenko NES mount, Canon 450D DSLR, 60 secexp, IS0 1600. April 6, 2012, Camarines Norte, Philippines. Photo Credit: Anthony Urbano

M6 is an open cluster in Scorpius also known as the Butterfly Cluster. To the naked eye, its stars are on the verge of visibility, making an illusion of a ‘flying butterfly’ as the stars in the cluster twinkle. The brightest star in the cluster, BM Scorpii (an orange star), varies brightness from 6th to 8th magnitude in a period of approximately 28 months. Sky-Watcher 100 ED 4 in f/9 refractor, Kenko NES mount, Canon 450D DSLR, 60 sec exp, IS0 1600. April 6, 2012, Camarines Norte, Philippines. Photo Credit: Anthony Urbano

M7, also called the Ptolemy’s Cluster, is an open cluster in Scorpius, with its stars spread in such a large area (1 degree), and thus, best viewed with a pair of binoculars. With a small telescope and on a dark clear night, fainter stars in the cluster may be observed. Sky-Watcher 100 ED 4 in f/9 refractor, Kenko NES mount, Canon 450D DSLR, 60 sec exp, IS0 1600. April 6, 2012, Camarines Norte, Philippines. Photo Credit: Anthony Urbano

M92 globular cluster in Hercules imaged using a Sky-Watcher 100 ED 4 in f/9 refractor, Kenko NES mount, Canon 450D DSLR, 90 sec exp, IS0 1600. April 9, 2012, Camarines Norte, Philippines. Photo Credit: Anthony Urbano

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© Anthony Urbano (Manila, Philippines)

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