Messier Index/M108

Messier 108 250px A w:Hubble Space Telescope (HST) image of M 108.Credit: HST/w:NASA/w:ESA. w:J2000 w:Ursa Major w:Ursa MajorR. W. Sinnott, editor The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer 1988 Sky Publishing Corporation and Cambridge University Press 0-933-34651-4 SB(s)cdNASA/IPAC Extragalactic Database Results for NGC 3556 http://nedwww.ipac.caltech.edu/ 2007-06-21 11 11 31.0 +55 40 27 699 ± 9 km/s 14.1 MpcQ. Daniel Wang et al., [http://arxiv.org/abs/astro-ph/0308150v1 Chandra Observation of the Edge-on Galaxy NGC 3556 (M 108): Violent Galactic Disk-halo Interaction Revealed] 10.7 8′.7 × 2′.2 NGC 3556, PGC 34030, UGC 6225 Messier 108 (also known as NGC 3556) is an edge-on w:spiral galaxy in the w:constellation Ursa Major. It was discovered by w:Pierre Méchain in 1781 or 1782. Kepple George Robert Glen W. Sanner The Night Sky Observer's Guide, Volume 2 Willmann-Bell, Inc. 1998 0-943396-60-3 399 thumb|left|500px|Amateur Image of Messier 108 Courtesy Hunter Wilson External links SEDS: Spiral Galaxy M108 References