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 |