Media Information

 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Gangly Spiral Galaxy NGC 3184
Explanation:
NGC 3184 is a large spiral galaxy [ http://www.seds.org…] with a small nucleus and long sprawling spiral arms. Although NGC 3184 [ http://www.kopernik…] contains hundreds of billions of stars, the blue color of its spiral arms [ http://online.bc.cc…] comes mostly from relatively few bright young blue stars [ http://antwrp.gsfc.…]. The galaxy is not empty of matter between these spiral [ http://antwrp.gsfc.…] arms -- the bright stars that highlight the arms were created in huge density waves [ http://fuse.pha.jhu…] that circle the center. Visible [ http://www.ghg.net/…] with a small telescope towards the constellation [ http://www.att.virt…] of Ursa Major [ http://www.astronom…], light takes about 25 million years to reach us from NGC 3184 [ http://home.cc.uman…], and about 50,000 years just to cross it. NGC 3184 [ http://adsabs.harva…] (Hubble type [ http://www.seds.org…] Sbc) is notable for its high abundance [ http://adsabs.harva…] of heavy elements [ http://casa.colorad…] and a supernova [ http://imagine.gsfc…] that has occurred there recently [ http://cfa-www.harv…].
Credit and Copyright:
Al Kelly [ mailto:akelly@ghg.ne t ] (JSCAS [ http://www.ghgcorp.…]/NASA [ http://www.nasa.gov/]) & Arne Henden (Flagstaff [ http://www.nofs.nav…]/USNO [ http://www.usno.nav…])
keyword:
spiral galaxy
facet_where:
Colorado
facet_where:
NGC 3184
facet_where:
Goddard Space Flight Center (GSFC)
facet_where:
Washington, D.C.
facet_what:
Ursa Major
facet_what:
FUSE
facet_what:
spiral galaxy
facet_what:
New General Catalogue (NGC)
original url:
UID:
SPD-APOD-ap000920

Gangly Spiral Galaxy NGC 3184