1. Detecting Extrasolar Planetary Transits Through Photoelectric Photometry Violet Poole Dr. Matthew Beaky

2. Most extrasolar planets have been detected by the radial velocity method Minimum mass M sin i Astrophysical Journal 587, p. 423

3. An extrasolar planetary transit is seen from Earth as a dimming of light from the parent star Inclination angle (i) Planet mass Density Composition {

4. Extrasolar planetary transit observations are usually made with CCD cameras T. Castellano & G. Laughlin, Proceedings of the 21st IAPPP-WW Conf., 2002

5. All observations were made at the Truman Observatory in Kirksville, Missouri Meade LX200GPS 14 inch SCT Optec SSP3-A Photoelectric Photometer m = –2.5 log ( Var / Comp )

6. Making photometric measurements of a non-variable star established system precision HD195019

7. A partial transit of HD209458 was observed

8. We made photometric observations of HD149026, a planetary transit candidate…

9. …but we were unsuccessful in our effort to observe a second transit

10. We later learned that HD149026 had in fact been observed to transit N2K Consortium Astrophysical Journal 633, p. 465 m ~ 0.003

11. Photoelectric photometry is a valid alternative method for observing extrasolar planetary transits Transit Search: www.transitsearch.org Transit Timing