Tuesday, September 21, 2010

Crab Nebula (M1) in false color

The Crab Nebula (also known as M1) is a supernova remnant in Taurus. I find M1 interesting because it has curious shapes depending on which wavelengths of light you use to image it. To create this false color composite I used Hydrogen Alpha, Oxygen-III and Sulphur-II. I acquired the data for this image last November, but only recently managed to do the processing to make the final composite. I used CCDStack for all registration and stacking and Photoshop CS5 for the rest. Its incomparable to the image taken by the Hubble, but I'm still pleased with this result.

Technical Specs: 24" RCOS (4875mm focal length at f/8), Apogee Alta U42. Astrodon Ha, S2, O3 filters, 120s x 10 for each (1 hour total).


Rick said...

WOW! You took that photo? Very nice. I am impressed.

Aravind Krishnaswamy said...

Well more accurately, I rented time on a telescope in New Mexico that did the image capture. I then did the processing to make the final image.