NGC 4911 (also IRAS 12584+2803, MCG 5-31-93, UGC 8128 and PGC 44840) is a magnitude +12.8 spiral galaxy located 320 million light-years away within the Coma Cluster of galaxies in the constellation Corona Borealis. It is rare for such a spiral galaxy to be situated at the heart of a cluster.
The galaxy was discovered by German-British astronomer William Herschel using a 47.5 cm (18.7 inch) f/13 speculum reflector at Datchet, Berkshire, on the 11th April 1785.
Right Ascension 13h 00m 58.1s, Declination +27° 47' 25"
Hubble space telescope astronomers unveiled a look at a spiral galaxy spinning like a wheel amid a sea of stars on Tuesday. The NGC 4911 galaxy lies some 320 million light-years away in the "Coma Cluster" of some 1,000 galaxies, islands of stars like our own Milky Way, set amid the vastness of space. One light year is about 5.9 trillion miles. Read more
A long-exposure Hubble Space Telescope image shows a majestic face-on spiral galaxy located deep within the Coma Cluster of galaxies, which lies 320 million light-years away in the northern constellation Coma Berenices. The galaxy, known as NGC 4911, contains rich lanes of dust and gas near its center. These are silhouetted against glowing newborn star clusters and iridescent pink clouds of hydrogen, the existence of which indicates ongoing star formation. Hubble has also captured the outer spiral arms of NGC 4911, along with thousands of other galaxies of varying sizes. The high resolution of Hubble's cameras, paired with considerably long exposures, made it possible to observe these faint details. Read more