M17 (The Swan Nebula)

Posted by DaveMitsky
on Wednesday, July 21, 2010

by Dave Mitsky

This 90-second-long, OIII-filtered image of the bright emission nebula M17 (also known as the Swan, Omega, Checkmark, Horseshoe, or Lobster Nebula) in Sagittarius, was captured remotely on 2010/7/21 using the Bradford Robotic Telescope's 14" f/11 Celestron C14 SCT and FLI MicroLine camera located on Tenerife in the Canary Islands.  A Celestron focal reducer yielding an effective focal length of 1877mm at f/5.3 was employed.  The image was rotated 180 degrees so that south is up and the "swan" is easier to see.  For more on M17, browse http://www.maa.clell.de/Messier/E/m017.html

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