M101 with Supernova PTF11kly Still Glowing! | Rod Pommier

Photographer
Rod Pommier
Email
pommierr@ohsu.edu
Location of photo
Pommier Observatory, Portland, OR, USA
Date/Time of photo
2012-05-09 through 2012-05-14.
Equipment
Telescope/Mount: Celestron Compustar C14 with 0.75x focal reducer (f/8.3). Camera: SBIG STL11000M with Baader Planetarium L,R,G,B filters.
Description
M101, imaged in May, 2012, shows supernova PTF11kly,a Type Ia discovered on 2011-08-24 by the Palomar Transient Factory is still glowing a distinct blue! It can be seen at 5 o'clock about 3/4 the distance from the galaxy's core to its edge. I was unable to image the supernova after discovery because the view from my observatory was blocked by trees. I was delighted to still see it glowing when the Oregon weather cleared in May, when M101 was high overhead. Although a grand design spiral, M101's has a distinctly off center core and far flung spiral arms, likely from tidal interaction with some of its known satellite galaxies. M101 has a diameter of 170,000 light-years and is 21 million light-years away.
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.

COMMENT