Spring is coming, and along with that comes the realm of galaxies. Here is another superb shot by Ray Gralack:
A couple nights ago I collected some LRGB data of the M87/M86/M84 region but the
red didn't finish before sunrise so I just made a luminance image until I can
get the red data. This image consists of 140 minutes (7 x 20 minutes) luminance
with my AP160 at f/5.7. The camera used was an STL-11000M.
M87 is in the upper left and M86/84 lower right. I think there are literally
thousands of galaxies total visible in the full-sized image. I stretched the
image so that the background is bright enough to see all of the faint galaxies.
Besides using DDP to tame the large dynamic range of M87/86 and 84, I did a very
slight unsharp mask to highlight some galaxy detail.
This is reduced to 1/3 full size:
http://www.gralak.com/Astro/M86-M84-M87-AP160-Lum-33a.jpg
This image is full-size (warning 2MB+ download!!)
http://www.gralak.com/Astro/M86-M84-M87-AP160-Lum-100a.jpg
-Ray Gralak
A couple nights ago I collected some LRGB data of the M87/M86/M84 region but the
red didn't finish before sunrise so I just made a luminance image until I can
get the red data. This image consists of 140 minutes (7 x 20 minutes) luminance
with my AP160 at f/5.7. The camera used was an STL-11000M.
M87 is in the upper left and M86/84 lower right. I think there are literally
thousands of galaxies total visible in the full-sized image. I stretched the
image so that the background is bright enough to see all of the faint galaxies.
Besides using DDP to tame the large dynamic range of M87/86 and 84, I did a very
slight unsharp mask to highlight some galaxy detail.
This is reduced to 1/3 full size:
http://www.gralak.com/Astro/M86-M84-M87-AP160-Lum-33a.jpg
This image is full-size (warning 2MB+ download!!)
http://www.gralak.com/Astro/M86-M84-M87-AP160-Lum-100a.jpg
-Ray Gralak
