M51, The Whirlpool Galaxy

Rod Pommier
Location of photo
Pommier Observatory, Portland, OR, USA
Date/Time of photo
2014-06-02 through 2014-06-20
Telescope/Mount: Celestron Compustar14 (f/11). Camera: SBIG STL 11000 CCD camera with Baader Planetarium L,R,G,B filters. Other equipment: SBIG AO-L adapative optics at 4.5 Hz. Exposures: L:R:G:B =410:130:130:130 = 13 hours 20 minutes total exposure.
M51, the Whirlpool galaxy, lies approximately 25 million-light years from Earth in the constellation Canes Venatici. The whirlpool effect is caused by gravitational interactions with the dwarf galaxy NGC 5195. This image reveals the faint tidal tails streamiing away from both galaxies as a result of this interaction. Many other faint, distant galaxies are visible in the image.
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.