Messier Index/M28

Messier 28 250px Messier 28 by w:Hubble Space Telescope; 2.5′ view w:NASA/w:STScI/w:WikiSky w:J2000 IV Sagittarius 18 24 32.89SIMBAD Astronomical Database Results for NGC 6626 http://simbad.u-strasbg.fr/Simbad 2006-11-16 -24 52 11.4 18.3 kly 5.6 kpc +7.66 11′.2 30 lydistance × sin( diameter_angle / 2 ) = 30 ly. radius Contains pulsar M 28, NGC 6626, GCl 94 Messier 28 (also known as M28 or NGC 6626) is a w:globular cluster in the w:constellation Sagittarius. It was discovered by w:Charles Messier in w:1764. M28 is at a distance of about 18,000 to 19,000 w:light-years away from w:Earth. 18 RR Lyrae type w:variable stars have been observed in this cluster. In w:1986, M28 became the first globular cluster where a millisecond pulsar was discovered (by the w:Lovell Telescope at w:Jodrell Bank Observatory).http://www.jb.man.ac.uk/tech/lovell/aunstar.html JBO - Stars w:Jodrell Bank Observatory 2007-06-01 thumb|200px|left|Messier 28 on w:2MASS; wide angle External links Globular Cluster M28 @ SEDS Messier pages Messier 28, Galactic Globular Clusters Database page References