Original - This is a unique view of the disk galaxy NGC 5866 tilted nearly edge-on to the line-of-sight. The Hubble Space Telescope's sharp vision reveals a crisp dust lane dividing the galaxy into two halves. The image highlights the galaxy's structure: a subtle, reddish bulge surrounding a bright nucleus, a blue disk of stars running parallel to the dust lane, and a transparent outer halo. Viewed face on, it would look like a smooth, flat disk with little spiral structure. It remains in the spiral category because of the flatness of the main disk of stars as opposed to the more spherically rotund (or ellipsoidal) class of galaxies called "ellipticals." Such S0 galaxies, with disks like spirals and large bulges like ellipticals, are called lenticular galaxies.
 
Edit 1 An attempt at a crop; mostly cut from the bottom.
Reason
A high resolution, high quality Hubble image. It has excellent enc., and seems to tick the various boxes.
Articles this image appears in
Galaxy, Lenticular galaxy, NGC 5866, Messier 102, Herschel 400 Catalogue

NGC 5866 Group

Creator
NASA, ESA, and The Hubble Heritage Team (STScI/AURA)


Promoted File:Ngc5866 hst big.png MER-C 07:42, 26 February 2009 (UTC)[reply]