Very impressive, Tyler. I don't believe I've seen the outer shell in any photo before, or if I did, it did not show up this well! Congrats, and of course, congrats to you and Sheena for the fine article. -- Joe --- On Tue, 4/7/09, Tyler Allred <tylerallred@earthlink.net> wrote: From: Tyler Allred <tylerallred@earthlink.net> Subject: [Utah-astronomy] The Owl Nebula - In Hydrogen Alpha and OIII To: utah-astronomy@mailman.xmission.com Date: Tuesday, April 7, 2009, 6:15 PM Hi all.  Thanks for all the nice comments about the article in the Tribune yesterday.  I broke out the scope last night despite the bright moon.  I decided to try a little narrowband imaging of the Owl Nebula, M97.  I took lots of frames but had to throw away quite a few because of trailed stars.  However, I did get 2 hours each of hydrogen alpha and OIII data, which I combined into a narrowband image.  I used the OIII data for both the green and blue channels, and the Ha for the red channel.  I was pleased that I managed to get just a hint of the larger outer shell, which is rarely imaged.  Can you see it?  I posted the photo on the SLAS gallery at: http://www.slas.us/gallery2/main.php?g2_itemId=1740 Click the small image for the full version. I also posted it to my website along with some interesting information, at: http://71.18.228.62/gpage8.html Click the thumbnail for a "clickable" full resolution version.  I hope you like it! Cheers, Tyler _____________________________________________ _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://www.slas.us/gallery2/main.php Visit the Wiki: http://www.utahastronomy.com