HD 80606

Period e omega Msini Tperiastron 
(days) (deg) Mjup JD
111.78+/-0.21 0.927+/10.012 291.5+/-7 3.41 Mj 2451973+/-0.33d


HD 80606b Transit Epochs:

                  JD Y M D H M

transit center 2452656.33 2003 01 16 19 56
transit center 2452768.11 2003 05 08 14 39
transit center 2452879.89 2003 08 28 09 22
transit center 2452991.67 2003 12 18 04 05
transit center 2453103.45 2004 04 07 22 48
transit center 2453215.23 2004 07 28 17 32
transit center 2453327.01 2004 11 17 12 15
transit center 2453438.79 2005 03 09 06 58
transit center 2453550.57 2005 06 29 01 41
transit center 2453662.35 2005 10 18 20 24
transit center 2453774.13 2006 02 07 15 08
transit center 2453885.91 2006 05 30 09 51
transit center 2453997.69 2006 09 19 04 34
transit center 2454109.47 2007 01 08 23 17
transit center 2454221.25 2007 04 30 18 00
transit center 2454333.03 2007 08 20 12 44
transit center 2454444.81 2007 12 10 07 27
transit center 2454556.59 2008 03 31 02 10
transit center 2454668.37 2008 07 20 20 53
transit center 2454780.15 2008 11 09 15 36
transit center 2454891.93 2009 03 01 10 20
transit center 2455003.71 2009 06 21 05 03
transit center 2455115.49 2009 10 10 23 46
transit center 2455227.27 2010 01 30 18 29
transit center 2455339.05 2010 05 22 13 12
transit center 2455450.83 2010 09 11 07 56

The orbital eccentricity (e=0.927) of HD 80606b is the highest of
any known extrasolar planet. Unfortunately for Transitsearch.org,
the argument of perihelion (omega=291.5 deg) puts the angle of
close approach well away from the line of sight to the star (omega=90 deg).
The probability of transit for HD 80606b is thus low, but definitely
worth the effort of looking. HD 80606b's close approach mean
that tidal heating of the planet is considerable, and the size
of the planet may be quite large, making for a deep transit!
The uncertainty in the transit time is large enough so that observations
should be made within a window of two days to either side of the
predicted transit center.