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Session 28 - Double Stars.
Display session, Tuesday, June 10
South Main Hall,

[28.03] CCD Photometry of Apsidal Motion Eclipsing Binaries

D. Caton, S. Templeton (Appalachian State U.)

At Appalachian State University's Dark Sky Observatory we have maintained a program of monitoring the times of minimum light for apsidal motion binaries. In the last two years that program has largely migrated to the CCD detector, from the photoelectric photometer used previously. Most of the work has also moved from the 18-inch telescope to the new 32-inch telescope. Some observations were also made using the 36-inch SARA telescope at Kitt Peak.

We have concentrated on observing eclipses of fainter systems as well as those that have been neglected by other observers. We will report here on the observations over the last few years.

This work has been supported by grants from the National Science Foundation, the American Astronomical Society, and the Fund for Astrophysical Research. We are also grateful for the assistance from the U.S. Naval Observatory library, the Yerkes Observatory library, the SIMBAD data base, and the Digitized Sky Survey internet service.

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Program listing for Tuesday