Orbital Data and Parent Star Data for: HD209458_ b

quantity unit value 1-sigma uncertainty
Period days 3.5247486 0.0000010
Time of periastron HJD 2452826.6285210 0.0000870
Orbital eccentricity none 0.000 0.000
Argument of perihelion deg 90.000 0.000
Velocity half-amplitude m s^-1 86.500 1.000
Planetary mass M_Jup 0.674 ---
Stellar mass M_Sun 1.06 ---
Stellar T_eff Kelvin 6099 ---
Planetary T_eff Kelvin 1361 ---
Stellar Radius R_Sun 1.150 ---
Measured Planetary Radius R_Jupiter 1.320 ---
T_circ (w/o core) Gyr 0.284 ---
T_damp (w/o core) Gyr inf ---


Planet radii from theoretical models of:
Bodenheimer, Laughlin, and Lin 2003, Astrophysical Journal, v. 592, 555-563.

Damping timescales from:
Adams and Laughlin 2006, ApJ : link