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M72: A Globular Cluster of Stars

 
 
Reply Sun 19 Aug, 2012 10:03 am
2012 August 19
M72: A Globular Cluster of Stars
Image Credit: NASA, ESA, Hubble, HPOW

Explanation: Globular clusters once ruled the Milky Way. Back in the old days, back when our Galaxy first formed, perhaps thousands of globular clusters roamed our Galaxy.

Today, there are less than 200 left. Many globular clusters were destroyed over the eons by repeated fateful encounters with each other or the Galactic center.

Surviving relics are older than any Earth fossil, older than any other structures in our Galaxy, and limit the universe itself in raw age. There are few, if any, young globular clusters in our Milky Way Galaxy because conditions are not ripe for more to form.

Pictured above by the Hubble Space Telescope are about 100,000 of M72's stars. M72, which spans about 50 light years and lies about 50,000 light years away, can be seen with a small telescope toward the constellation of the Water Bearer (Aquarius).

PHOTOS

http://www.spacetelescope.org/images/potw1001a/

http://apod.nasa.gov/apod/ap001029.html

http://www.youtube.com/watch?v=QXeEAQtC75g

http://www.wikisky.org/?object=Aquarius&zoom=2

http://www.faqs.org/faqs/astronomy/faq/part8/section-5.html


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Zarathustra
 
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Reply Sun 19 Aug, 2012 03:16 pm
@BumbleBeeBoogie,
BBB: Most of the astronomy pictures you post are either enhanced digitally (to bring out certain features, for example) or are long exposure images. This means the object in the picture are always FAR more impressive that the same object seen through a telescope -- even the largest professional scopes.

On the other hand some objects such as globular clusters just cannot be done justice by an image. You really have to see objects such as M72 through a telescope. As the scope size increases to the larger amateur scopes the view almost doesn’t seem real. Even in small scopes globular clusters cannot be described but must be seen. It’s a nice picture but Ill take the real thing.
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