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Byron Davies

Sh2-86 (NGC-6820)

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Crab Nebula

Started by rwodaski, 02/26/2003 10:51AM
Posted 02/26/2003 10:51AM Opening Post
The clouds parted in New Mexico tonight and we got an unscheduled night of imaging with the remote telescope. I had a couple of hours before the first client was imaging, so I did a little imaging.

The seeing was especially good early on, though not bad after midnight. I managed some images of the Crab Nebula during the especially good seeing. I took nine 5-minute images and the combination of lots of exposure time and deconvolution, plus good seeing, results in a very sharp image.

I used a new technique on this image. I made two master images. I first enlarged the image 2X, and then applied deconvolution. I combined this with a second image, which was deconvolved before a 2X enlargement. The former image contributed more body (density, for those of you with film background), and the latter image contributed more texture.

The final image was 2048x24048, so I cropped the central portion and that is what is posted here. I'll add a second post with the color version. I used color from the first-light image on the remote scope.

Ron Wodaski
http://www.newastro.com/remote


Attached Image:

rwodaski's attachment for post 4102

Ron Wodaski
New Astronomy Press
http://www.newastro.com
Posted 02/26/2003 10:53AM #1
Here is a 1x color image, a combination of the luminance in really good seeing and older color data taken just after I set up the remote telescope.

Ron Wodaski
http://www.newastro.com/remote


Attached Image:

rwodaski's attachment for post 65272

Ron Wodaski
New Astronomy Press
http://www.newastro.com
Posted 02/27/2003 01:22AM #2
Ron,

Beautiful image! I really admire your work and I love your book. The more I learn about CCD imaging the more I wished I should have bought your book first then bought my equipment. Nonetheless I'm going to us my ST5 untill it falls apart. My images need work and I'm wondering when do you know when the color is right? I would also like to see more resolution from my images. Can I do anything more with what I have or do I need to empty the savings account again?

Attached Image:

brian11333's attachment for post 65287