AM 0644-741

Infobox Galaxy


caption = AM 0644-741, as taken by the HST. Courtesy of NASA/ESA
name = AM 0644-741
type = (S0-) + Ringcite web
title=Nasa/Ipac Extragalactic Database
work=Results for AM 0644-741
url=http://nedwww.ipac.caltech.edu/
accessdate=2006-10-12]
epoch = J2000
ra = RA|6|43|6.1
dec = DEC|-74|13|35
dist_ly = 300 Mly
z = 6604 ± 26 km/s
appmag_v = +13.96
size_v = 1′.7
constellation name = Volans
names = Southern Ellipse

AM 0644-741 is an unbarred lenticular galaxy, and a ring galaxy which means it has a ring of nebulae around it. The ring was formed by a collision with another galaxy that triggered a gravitational disruption. The disruption caused dust in the galaxy to condense, and form stars, which forced it to then expand away from the galaxy, and create a ring. AM 0644-741 has a 150,000 light-year diameter, and is 300 million light-years from the Milky Way. [ [http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/15/ NASA Newsdesk] ]

References