M51 - The Whirlpool Galaxy
Supernovae 2005cs and 2011dh
From the author of Welcome to the Universe in 3D
Scroll down for larger individual images.
Click here for an animation that blinks between just two images---June 6 2011 and May 9 2005. This animation shows some proper motion with a few of the foreground stars.
Supernova 2011dh
Luminance
Combined with R, G, and B frames collected on May 9, 2005.
22:45 EDT June 6 -- 02:45 EDT June 7, 2011.
Starlight Express SXV-H9 on 10" RC at f/9.
Best 190 of 218 one-minute unguided subexposures.
Richardson-Lucy deconv and Gamma stretch (0.3).
Supernova 2005cs
Move your mouse cursor on and off the image to see the galaxy
with and without the supernova.
Javascript support in your browser must be enabled.
Individual images are shown below.
Click
here
to see full-sized image with supernova 2005cs.
21:55 EDT Jul 10, 2005.
Starlight Express SXV-H9 on 10" RC at f/9.
123.3 min (guided 200-second subexposures).
Richardson-Lucy deconv and Gamma stretch (0.3).
Luminance combined with R,G,B frames from May 9 and luminance frame from May 3.
NOTE SUPERNOVA
M51 without a supernova
21:25 EDT May 9, 2005.
Starlight Express SXV-H9 on 10" RC at f/9.
R=22 min, G=20min, B=23min (unguided 1-minute subexposures).
Combined with Luminance collected on May 3.
Richardson-Lucy deconv and Gamma stretch (0.3).
21:36 EDT May 3, 2005.
Starlight Express SXV-H9 on 10" RC at f/9.
45 min (unguided 1-minute subexposures).
Richardson-Lucy deconv and Gamma stretch (0.3).