The Planet Around HD4203

Revised 21 November 2003


Velocity versus Orbital Phase for HD4203
(Data from Keck Observatory)


NSF & NASA Announcement, 15 October 2001

UK Press Announcement, 15 October 2001

Paper: Vogt, Butler, Marcy, Fischer, Pourbaix, Apps & Laughlin, "Ten Low Mass Companions from the Keck Precision Velocity Survey"


Orbital Parameters and Planet Mass
Keck Observatory

Period
(d)
T_peri
(JD-2450000)
ecc omega
(deg)
Vel Amp, K
(m/s)
Msini
(M_jup)
a
(AU)
404.224 -88.11 0.51 335 103.05 3.35 1.09
Chi-squared = 1.36
Data provided by California & Carnegie Planet Search Team


Stellar Characteristics

Spectral Type Mass
(M_sun)
Apparent
magnitude
Distance
(pc)
P_rot
(d)
[Fe/H]
G5 V 1.06 8.70 77.8 43.1 0.22

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