M28 (NGC 6626)
Apparent Magnitude: 7.66
Distance Aprox: 17,900 light-years
Constellation: Sagittarius
Star Count Aprox: 50,000
Diameter: 60 light-years
M28 is a class IV globular star cluster and considerably smaller than the nearby Messier 22. Messier 28 was the first globular cluster discovered to contain a milisecond pulsar, a pulsating, highly magnetized rotating neutron star emitting a beam of electromagnetic radiation with a rotational period between 1 and 10 miliseconds. The pulsar, catalogued as PSR B1821–24, was discovered in 1986.
Taken 7/7/18 in Grand Rapids, Ohio by Russell Kille on a CPC 1100 with Hyperstar @ F2 and ZWO ASI294MC Pro camera