At a distance of about 30,000 light-years, M14 contains several hundred thousand stars. At an apparent magnitude of +7.6 it can be easily observed with binoculars. Medium-sized telescopes will show some hint of the individual stars of which the brightest is of magnitude +14.
The total luminosity of M14 is in the order of 400,000 times that of the Sun corresponding to an absolute magnitude of -9.12. The shape of the cluster is decidedly elongated. M14 is about 100 light-years across.[6]
A total of 70 variable stars are known in M14, many of the W Virginis variety common in globular clusters. In 1938, a nova appeared, although this was not discovered until photographic plates from that time were studied in 1964. It is estimated that the nova reached a maximum brightness of magnitude +9.2, over five times brighter than the brightest 'normal' star in the cluster.
Slightly over 3° southwest of M14 lies the faint globular cluster NGC 6366.
^Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin, 849 (849): 11–14, Bibcode:1927BHarO.849...11S.
messier, also, known, 6402, globular, cluster, stars, constellation, ophiuchus, discovered, charles, messier, 1764, globular, cluster, ophiuchusobservation, data, j2000, epoch, classviii, constellationophiuchusright, ascension17h, declination, distance30, appa. Messier 14 also known as M14 or NGC 6402 is a globular cluster of stars in the constellation Ophiuchus It was discovered by Charles Messier in 1764 Messier 14Globular cluster Messier 14 in OphiuchusObservation data J2000 epoch ClassVIII 1 ConstellationOphiuchusRight ascension17h 37m 36 15s 2 Declination 03 14 45 3 2 Distance30 3 kly 9 3 kpc 3 Apparent magnitude V 7 6 4 Apparent dimensions V 11 0 Physical characteristicsMass1 04 106 3 M Radius50 ly 5 Metallicity Fe H displaystyle begin smallmatrix left ce Fe ce H right end smallmatrix 1 28 3 dexOther designationsNGC 6402 2 See also Globular cluster List of globular clustersAt a distance of about 30 000 light years M14 contains several hundred thousand stars At an apparent magnitude of 7 6 it can be easily observed with binoculars Medium sized telescopes will show some hint of the individual stars of which the brightest is of magnitude 14 The total luminosity of M14 is in the order of 400 000 times that of the Sun corresponding to an absolute magnitude of 9 12 The shape of the cluster is decidedly elongated M14 is about 100 light years across 6 A total of 70 variable stars are known in M14 many of the W Virginis variety common in globular clusters In 1938 a nova appeared although this was not discovered until photographic plates from that time were studied in 1964 It is estimated that the nova reached a maximum brightness of magnitude 9 2 over five times brighter than the brightest normal star in the cluster Slightly over 3 southwest of M14 lies the faint globular cluster NGC 6366 Contents 1 Gallery 2 See also 3 References 4 External linksGallery edit nbsp Messier 14 with amateur telescope nbsp Map showing location of Messier 14See also editList of Messier objectsReferences edit Shapley Harlow Sawyer Helen B August 1927 A Classification of Globular Clusters Harvard College Observatory Bulletin 849 849 11 14 Bibcode 1927BHarO 849 11S a b c NGC 6402 SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2006 11 15 a b c Boyles J et al November 2011 Young Radio Pulsars in Galactic Globular Clusters The Astrophysical Journal 742 1 51 arXiv 1108 4402 Bibcode 2011ApJ 742 51B doi 10 1088 0004 637X 742 1 51 S2CID 118649860 Messier 14 SEDS Messier Catalog Retrieved 28 April 2022 distance sin diameter angle 2 50 ly radius Messier 14 Messier Objects 31 March 2015 Retrieved 2020 04 14 External links edit nbsp Wikimedia Commons has media related to Messier 14 SEDS Messier pages on M14 M14 Galactic Globular Clusters Database page NASA Astronomy Picture of the Day The Comet and the Star Cluster 11 April 2016 one of the two being M14 Messier 14 on WikiSky DSS2 SDSS GALEX IRAS Hydrogen a X Ray Astrophoto Sky Map Articles and imagesPortals nbsp Astronomy nbsp Stars nbsp Outer space Retrieved from https en wikipedia org w index php title Messier 14 amp oldid 1154748748, wikipedia, wiki, book, books, library,
