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Date: Mon, 14 Jul 2003 22:07:37 -0700 (PDT) From: Frederick Ringwald <fringwal@csufresno.edu> Subject: Call for Observations: AR UMA and AM Her Dear VSnet Observers, Please monitor AR UMa and AM Her as much as you can, since Steve Saar (Harvard-Smithsonian Center for Astrophysics) and I have a Target-of-Opportunity program to observe them with Hubble Space Telescope this year. We want to get spectra of these stars when they go into their low states, which are unpredictable: this project depends crucially on observations by observers like you, night after night, throughout the year. AR UMa has been in a low state, near V=15.5, for many months now, so we are hoping to get our observations scheduled for sometime in August (not a moment too late, too, since it's quite late in the observing season). Its 2000 coordinates are: RA: 11:15:44.68 DEC: +42:58:22.5. VSnet has finding charts, here: http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/LCs/index/UMAAR.html AM Her is rather high lately, near V = 13.3, so it might take longer for it to go into the low state we need to get the observations. Still, it will be observable longer, for northern observers. Its 2000 coordinates are: RA: 18:16:13.33 DEC: +49:52:04.2. VSnet has finding charts, here: http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/LCs/index/HERAM.html Thanks, and keep up the good work! Best, ====================================================================== Dr. F. A. Ringwald ... to further the progress of science, Department of Physics to guide to an understanding California State University, Fresno of the majesty of the heavens, 2345 E. San Ramon Ave., M/S MH37 to emphasize that Fresno, CA 93740-8031 under the great celestial firmament, Phone: 559-278-8426 there is order, interdependence, and unity. Fax: 559-278-7741 -- Adler Planetarium, Chicago E-mail: ringwald@csufresno.edu http://zimmer.csufresno.edu/~fringwal/
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