BVRI CCD Photometry of Theta-1 Orionis A

Details BVRI CCD Photometry of Theta-1 Orionis A BVRI CCD Photometry of Theta-1 Orionis A

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sass...26...51h&link_type=abstract

The Society for Astronomical Sciences 26th Annual Symposium on Telescope Science. Held May 22-24, 2007 at Big Bear, CA. Publishe

Astronomy and Astrophysics

Astronomy

Scientific paper

Time-series BVRI CCD photometry data on Theta-1 Orionis A (V1016 ORI), a member of the familiar Trapezium cluster, was obtained at the Hopkins Phoenix Observatory (Phoenix, AZ) during December 2006 through February 2007. Data was acquired during two primary eclipse cycles, along with multiple out-of-eclipse observations. The observations were made with a Meade DSI Pro CCD camera and LX200 GPS 12 inch (30.5 cm) aperture telescope equipped with Johnson-Cousins filters. This paper details the observing setup, the technique, and resulting data analysis. It was noted that the estimated mid-eclipse (minimum light) point during the 02 December 2006 primary eclipse appears to have occurred several hours later than predicted from the early epoch timings. The possible secondary eclipse (which has evidently never been observed by anyone) proved to be elusive.

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