I've never seen a Moonbow, either. Due to the position of Bridal Veil Falls on the south side of the canyon and the height of the horizon there, I don't think that it would be possible to photograph a Moonbow there. And, of course, the falls are frozen this time of year. I admit, though, that I've never tried. Could be worth investigating. A couple of years ago I got a pretty good pic of a Moon halo, complete with Moondogs and a circumzenithal arc. This was at RTMC (Memorial Day weekend). I've seen a number of interesting atmospheric phenomena from RTMC that I haven't seen elsewhere. Don't know why they occur more frequently there. Something to do with the proximity to the coast, maybe. Kim -----Original Message----- From: utah-astronomy-bounces@mailman.xmission.com [mailto:utah-astronomy-bounces@mailman.xmission.com] On Behalf Of Canopus56 Sent: Friday, January 25, 2008 4:40 PM To: Utah Astronomy List Serv Subject: Re: [Utah-astronomy] Moonbeam? Tom, They are call moonbows. I haven't seen one or photographed one personally, but I understand that if you expose for a long enough period, the camera can pick up the rainbow colors in the nighttime "bow" that are too faint to see with the eye. Because the Moon is high this time of year, this is the season for Moon halos - which is just a Moonbow that covers 360 degrees because it is not cut off by the horizon. Moon halos also occur between the observer and the Moon, while Moonbows occur behind the observer with the Moon at the observer's back. - Kurt P.S. - Wonder if they can be seen or photographed around the Utah Bridal Veil Falls? Kim, are you there? Utah astro listserv member Rob Ratkowski's spectacular 2004 Moonbow pic at Maui on the Atmospheric Optics website http://www.atoptics.co.uk/rainbows/bowim15.htm Moonbow http://en.wikipedia.org/wiki/Lunar_rainbow 1-18-2007 Lunar Picture of the Day (LPOD) of a Moon halo http://the-moon.wikispaces.com/LPOD+Jan+18%2C+2008 My bad pic of a Moon halo from last month http://gallery.utahastronomy.com/main.php?g2_itemId=10795 Ansel Adams tricks for photographing moonbows at Yosemite Falls http://www.anseladams.com/content/newsletter/lunar_rainbow.html ____________________________________________________________________________ ________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy Visit the Photo Gallery: http://gallery.utahastronomy.com Visit the Wiki: http://www.utahastronomy.com ______________________________________________________________________ This e-mail has been scanned by Cut.Net Managed Email Content Service, using Skeptic(tm) technology powered by MessageLabs. For more information on Cut.Nets Content Service, visit http://www.cut.net ______________________________________________________________________ Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.31/1128 - Release Date: 11/13/2007 11:09 AM Internal Virus Database is out-of-date. Checked by AVG Free Edition. Version: 7.5.503 / Virus Database: 269.15.31/1128 - Release Date: 11/13/2007 11:09 AM