Media Information
 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Nearby Spiral M33
Explanation:
M33 is a prominent nearby spiral galaxy. Nicknamed the Triangulum [ http://www.astro.wi…], M33 [ http://ftp.seds.org…] is one of the larger members of the Local Group of Galaxies [ http://ftp.seds.org…]. Two massive spiral galaxies [ http://antwrp.gsfc.…] dominate the Local Group: M31 [ http://antwrp.gsfc.…] and our Milky Way Galaxy [ http://antwrp.gsfc.…]. M33 is the only other spiral galaxy known in the Local Group. At 3 million light-years, M33 is the second closest spiral galaxy. M33 [ http://antwrp.gsfc.…] is thought by some to be a satellite galaxy to massive M31 [ http://ftp.seds.org…]. M33 [ http://antwrp.gsfc.…] is close enough to appear twice the angular size of the full moon [ http://antwrp.gsfc.…], when viewed with binoculars. Globular clusters [ http://antwrp.gsfc.…] in M33's halo appear unusual [ http://adsabs.harva…] and might be much younger than globular clusters in our Galaxy's halo [ http://antwrp.gsfc.…].
Credit and Copyright:
D. Malin [ http://WWW.AAO.GOV.…] (AAO [ http://www.aao.gov.…]), IAC [ http://www.iac.es/], RGO [ http://www.ast.cam.…], Isaac Newton Telescope [ http://www.ast.cam.…]
keyword:
galaxy
keyword:
spiral
keyword:
local group
facet_where:
Milky Way Galaxy
facet_where:
M31
facet_where:
M33
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Moon
facet_what:
Triangulum
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap980721

Nearby Spiral M33
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