Monitoring for a planetary transit of HD 80606

Details Monitoring for a planetary transit of HD 80606 Monitoring for a planetary transit of HD 80606

Feb 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aan...393....1t&link_type=abstract

AAVSO Alert Notice 393

Mathematics

Probability

Hd 80606, Planetary Transit, Exoplanet, Aavso International Database, High-Precision Photometry, Ccd Coefficients

Scientific paper

Dr. Greg Laughlin (Lick Observatory) requests intensive time-series photometry of the possible transiting extrasolar planetary system HD 80606. This low-amplitude (on the order of 10 mmag) system is predicted to reach conjunction on or around HJD 2454876.5 (2009 Feb 14.0 UT), and there is a low but significant probability (<15%) that the system is eclipsing. If it eclipses, the duration of the eclipse may be as long as 17 hours. Observers are requested to perform high-S/N, filtered photometry of this bright star during a window beginning 48 hours before the predicted eclipse and ending 48 hours after. Due to the long duration of the eclipse, the data of many observers will need to be combined, so high-precision photometry is required. HD 80606 is a close double; the western member of the pair is the star of interest. Information on computing transformation coefficients is given. Data should be submitted to the AAVSO International Database.

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