The Planet Around HD209458 Revised 04 May 2003
Hydrogen in Atmosphere detected -13 March 2003
Velocity versus orbital Phase for HD209458. Velocities near phase 0.5 occur during transit of the planet across
the star. The net Doppler shift varies
due to the planet blocking the approaching and receding sides of the star.
(Data from Keck Observatory)
Henry et al. 2000 ApJL V 529, p41
Charbonneau et al. 2000 ApJL V 529, p45
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)
3.525
1586.03
0.11
100
86.52
0.67
0.05
Chi-squared =
4.05
Data provided by California & Carnegie Planet Search Team
Stellar Characteristics
| Spectral Type | Mass (M_sun) |
Apparent magnitude |
Distance (pc) |
P_rot (d) |
[Fe/H] | |
| F8 | 1.05 | 7.65 | - | - | 0.00 |