M53 Globular Cluster (NGC 5024) And α Com Wide-field (Antonis Karousis)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: M 53 · NGC 5024 · The star αCom

M53 Globular Cluster (NGC 5024) And α Com Wide-field, Antonis Karousis

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M53 Globular Cluster (NGC 5024) And α Com Wide-field

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M53 Globular Cluster (NGC 5024) And α Com Wide-field

M53, mag. +8.0, is a distant globular cluster positioned in the eastern part of the constellation Coma Berenices. Located about 60,000 light-years from the galactic center and 58,000 light-years from Earth, it's one of the outlying globulars of the Milky Way. For comparison, M13 is a mere 25,100 light-years distant. The central region appears bright and crisp but unresolved. In total, the outer halo extends for 13 arc minutes. Considering its vast distance from us the brightness and apparent size of M53 is impressive; it's an intrinsically large globular with a linear diameter of 220 light-years. The cluster contains at least 500,000 stars of which at least 67 are variable stars. It's estimated to be 12.67 billion years old.

The cluster is quite easy to find, lying just 1 degree northeast of mag. +4.3 star Diadem (α Com) - visible at the lower right corner of the image. Located 15 degrees directly east of M53 is orange giant starArcturus (α Boo - mag. -0.05), the fourth brightest star in the night sky.

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Astrometry.net job	5189702
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M53 Globular Cluster (NGC 5024) And α Com Wide-field

M53 Globular Cluster (NGC 5024) And α Com Wide-field

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M53 Globular Cluster (NGC 5024) And α Com Wide-field

M53 Globular Cluster (NGC 5024) And α Com Wide-field

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