Thursday, October 1, 2009

Pic of the Day (I)

This is Arp 274 also known as NGC 5679... its a system of three galaxies that appear to be overlapping in part. However the distances between these three galaxies is pretty awesome and their no where near actual mergence... at least not a few million years ago when this formation existed as you see it here. that still blows my mind!! that whole, time and space and speed thing! The two galaxies with the really bright blueish-white stars along their arms are forming really strong new stars. these stars are over 400 million light-years away! What's cool and Dorkie as shit, is that this photo was taken during the 400th anniversary of Galileo's first observations with a telescope. If you're not into the knowhow of stars just know this, the pic a perfect example of how different stellar populations make up the galaxies. Por ejemplo, yellowish older stars can be seen in the central bulge of each galaxy while a bright central cluster of stars pinpoint each nucleus. like I said already, younger blue stars trace the spiral arms, along with pinkish nebulae that are illuminated by new star formation. My favorite part of any galaxy photo is the "interstellar dust"!!! INTERSTELLAR DUST I DAY!!!! You can see the Interstellar dust silhouetted against the starry population. Additionally, it 'scool to note that a pair of foreground stars inside our own Milky Way are at far right.

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JULIA K