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Credit & Copyright: Karel Teuwen
Explanation:
This immense ball of half a million stars older than the Sun lies
over 30,000 light-years away.
Cataloged as M3
(and NGC 5272),
it is one of about 150
globular star
clusters that roam the halo of our
Milky
Way Galaxy.
Even in this
impressively
sharp image, individual stars are difficult to distinguished in the
densely
packed core, but colors are apparent for the bright stars on the
cluster's outskirts.
M3's many cool "red" giant stars take on a yellowish cast,
while hotter giants and pulsating
variable stars look light blue.
A closer look
at the deep telescopic view also reveals a host
of background galaxies.
Itself about 200 light-years across, the giant star cluster is
a relatively bright, easy target for binoculars
in the northern constellation Canes Venatici,
The
Hunting Dogs, and not far from
Arcturus.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: M 3 - globular cluster
Publications with words: M 3 - globular cluster
See also:
- NGC 4372 and the Dark Doodad
- Millions of Stars in Omega Centauri
- APOD: 2023 February 20 Á NGC 1850: Not Found in the Milky Way
- APOD: 2023 January 30 Á Globular Star Cluster NGC 6355 from Hubble
- M13: The Great Globular Cluster in Hercules
- Globular Star Cluster 47 Tuc
- Comet Leonard Before Star Cluster M3