Orbital Data and Parent Star Data for: 55cancri_ c

quantity unit value 1-sigma uncertainty
Period days 44.3241100 0.0210000
Time of periastron HJD 2450028.8586500 2.5000000
Orbital eccentricity none 0.493 0.210
Argument of perihelion deg 40.200 25.000
Velocity half-amplitude m s^-1 11.800 1.300
M*sin(i) M_Earth 55.123 ---
Stellar mass M_Sun 0.95 ---
Stellar T_eff Kelvin 5250 ---
Planetary T_eff Kelvin 482 ---
Stellar Radius R_Sun 0.950 ---
Predicted Planetary Radius (w/o core) R_Jupiter 1.017 ---
T_circ (w/o core) Gyr 0.000 ---
T_damp (w/o core) Gyr 0.000 ---


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