Core collapse (cluster), the dynamic process that leads to a concentration of stars at the core of a Globular cluster.
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Carbon planets might also be located near the galactic core or globular clusters orbiting the galaxy, where stars have a higher carbon-to-oxygen ratio than the Sun.
In December 2008, he observed a sharp 'laser look-alike' signal emanating from the globular cluster 47 Tucanae.
Caldwell 42 (NGC 7006), a globular cluster in the constellation Delphinus
Caldwell 73 (NGC 1851), a globular cluster in the constellation Columba
Caldwell 78 (NGC 6541), a globular cluster in the constellation Corona Australis
Caldwell 84 (NGC 5286), a globular cluster in the constellation Centaurus
Caldwell 87 (NGC 1261), a globular cluster in the constellation Horologium
Messier 107, a globular cluster in the constellation Ophiuchus
Messier 54, a globular cluster in the constellation Sagittarius
Messier 62, a globular cluster in the constellation Ophiuchus.
Messier 69, a globular cluster in the constellation Sagittarius
Messier 72, a globular cluster in the constellation Aquarius
Messier 92, a globular cluster in the Hercules constellation
In 1986, M28 became the first globular cluster where a millisecond pulsar, PSR B1821–24, was discovered with the Lovell Telescope at Jodrell Bank Observatory.