M28
NGC 6626
Type: Globular Cluster
Constellation: Sagittarius
Magnitude: 8.5
Size: 11.2'
RA-Dec: 18h 24.5m - -24 52
Difficulty: T E=easy, T=tough, C=challenging
Description:
An often overlooked globular cluster due to its proximity to the larger globular M22.   In binoculars, M28, M22 and the 3rd magnitude star Kaus Borealis form a nice-looking triangle in the sky.   M28 itself is a bright globular cluster showing an extremely condensed center surrounded by a diffuse outer halo where some brighter members can be resolved.   M28 contains a "millisecond pulsar", a neutron star which rotates several hundred times per second.
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