M51, The Whirlpool Galaxy | Rod Pommier

Rod Pommier
Location of photo
Pommier Observatory, Portland, OR, USA
Date/Time of photo
2011-05-09, 03:16UT
Celestron Compustar C14 telescope with 0.75x focal reducer (f/8). SBIG STL 11000M CCD at -25C,self-guided. Baader Planetarium LRGB filters. LRGB exposures=184:70:70:70 minutes=7hours:O4minutes total exposure.Calibrated with bias, dark, and flat field frames
This is a close up view of M51, the Whirlpool galaxy, and NGC 5195 cropped from my earlier full frame submission. It shows dust lane detail down to the region of the stellar nucleus. Numerous faint background galaxies are also visible, although not as many as in the full field frame. These include the small blue face-on barred spiral galaxy IC 4278 above the bridge and the yellow edge-on spiral galaxy IC 4277 above the large diffuse "E" formed by the tidal spray of stars from NGC 5195.
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.


This site uses Akismet to reduce spam. Learn how your comment data is processed.