Messier Index/M56

Messier 56 250px Messier 56 by w:Hubble Space Telescope. 3.6′ view w:NASA/w:STScI/w:WikiSky w:J2000 X Lyra 19 16 35.50SIMBAD Astronomical Database Results for NGC 6779 http://simbad.u-strasbg.fr/Simbad 2006-11-16 +30 11 04.2 32.9 klyw:Valentin D. Ivanov et al., Near Infrared Photometry of Galactic Globular Clusters M56 and M15. Extending the Red Giant Branch vs. Metallicity Calibration Towards Metal Poor Systems 10.1 kpc +8.3 8′.8 42 lydistance × sin( diameter_angle / 2 ) = 42 ly. radius M56, NGC 6779, GCl 110 Messier 56 Messier 56 (also known as M56 or NGC 6779) is a w:globular cluster in the w:constellation w:Lyra. It was discovered by w:Charles Messier in w:1779. M56 is at a distance of about 32,900 w:light-years from w:Earth and measures roughly 84 light-years across. The brightest w:stars in M56 are of 13th magnitude while it contains only about a dozen known w:variable stars like V6 (RV Tauri star; period: 90 days) or V1 (Cepheid: 1.510 days); other variable stars are V2 (irregular) and V3 (semiregular). External links Messier 56, SEDS Messier pages Messier 56, Galactic Globular Clusters Database page References