We report a times series of B-band photometric observations initiated on the eve of Valentine ’ s day , February 14 , 2009 , at the anticipated time of a transit of the extrasolar planet HD 80606b .
The same transit has been observed independently ( Fossey et al .
2009 ; Moutou et al .
2009 ) .
For one transit model favored by the data , minimum light equals 0.990 times the nominal brightness of HD 80606 and occurs at HJD 2454876.33 .
The latter time , combined with the orbital period P = 111.4277 \pm 0.0032 days , longitude of periastron , \omega = 300.4977 \pm 0.0045 degrees , and time of mid-secondary eclipse HJD 2454424.736 \pm 0.003 ( Laughlin et al .
2009 ) , refines the orbital eccentricity and inclination .
The duration of the model transit is 0.47 days , and its four contacts occur at HJD 2454876 plus 0.10 , 0.24 , 0.42 , and 0.57 days .
We describe parameterizations of a transit model with mutually accommodating eccentricity , e = 0.9337 ^ { +0.0009 } _ { -0.0006 } , inclination , i = 89.26 ^ { +0.24 } _ { -0.09 } degrees , and the planetary radius in units of the stellar radius R { { } _ { p } } / R { { } _ { * } } = 0.11 ^ { +0.04 } _ { -0.02 } .