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J.M. Stoltz, M.L. West (Montclair State University)
Images of the globular cluster M15 were taken with a CCD using Meade 8 inch and 12 inch telescopes. Our intention was to reproduce the photographs by Duncan made at the 100 inch telescope in 1932 and published as a laboratory exercise by Gingerich in Sky and Telescope in 1967. Images were collected on eleven nights, but only three were clear enough for differential photometry. These were analyzed with AIP for Windows (Burnell) and yielded phased light curves which fit with Clement¡¯s values for period and epoch of maximum brightness for four of the six stars measured (Bailey¡¯s stars 4, 5, 8, 11, 14, 15).
We plan to obtain more images of this cluster next winter and to investigate other clusters as well. We hope to improve our techniques for observing in cloudy and light polluted metropolitan New Jersey.
If you would like more information about this abstract, please follow the link to http://www.csam.montclair.edu/~west. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.
The author(s) of this abstract have provided an email address for comments about the abstract: west@pegasus.montclair.edu
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Bulletin of the American Astronomical Society, 36 #2
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