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re wow

From: Marni H.
Sent on: Wednesday, August 15, 2007 11:16 PM

Michael,

Thanks for the excellent links!

 

http://www.dl-digital.com/astrophoto/Nebula-home.htm


http://hubblesite.org/gallery/

 

Below is the galaxy M82 from the Hubble site. This object is easily visible thru a small telescope if you get away from city lights. I have observed it many times- but once again, thru a small scope it appears as a little grey cigar.

Astronomers believe that M82 is going through a massively catastrophic event. The most recent evidence seems to indicate a close encounter with its larger neighbor, M81. In that scenario, M82’s core was severely damaged by tidal forces as the more massive galaxy M81 passed by- astronomers estimate that this process may have begun 100 million years ago. Other evidence shows a possibility of an explosion at the galactic core, some 1.5 million years ago. The mass of the “ejected” material has been estimated at 5 million Suns!

 

Mark

 

 

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