Data for HD189733 and HD189733b

HD189733

Coordinate: 20h 00m 43.7133s, +22 42 39.070 (2000)
Originally detected in October 2005 using radial velocity measurement by Bouchy at the Haute-Provence Observatory in France.
Spectral type: G5 ,Mag: B 8.7 V 7.5 - similar colour and density to our sun.
Sp. Type: K1-K2
pi (mas): 51.94

d (pc): 19.25
m_v (mag): 7.67
B-V (mag): 0.932
T_eff (K): 5050 +/- 50
M_v (mag): 6.25
L (L_sol): -
log(g) (CGS): 4.53 +/- 0.14
M_1 (M_sol): 0.82 +/- 0.03
R (R_sol): 0.76 +/- 0.01
log(R'HK): -
P_rot (d): ~11
Vsini (km/s): 3.5 +/- 1
Age (Gyr): -
[Fe/H]: -0.03 +/- 0.04

(Metal Rich)-qq

Images

HD189733b - the planet
Mass:1.154 M(jupiter)
Orbital period 2.219 +/- 0.0005 day
Inclination (deg): 85.3 +/- 0.1
Radius ratio: 0.172 +/- 0.003
Planet radius (R_Jup) 1.26 +/-0.03
Planet density (g/cm^3) 0.75 +/- 0.08
Semimajor axis: (AU) 0.313
Orbital Period (years): 0.00607412
Minimum Mass: 366
Eccintricity: 0
Discoverer Name: Bouchy, et al
Announcement Date: Oct 5 2005


"Mazeh et al. think that they see a neat correlation between the period of transiting hot Jupiters and their masses. The dominant feature of this correlation is that very close-in "Very Hot Jupiters" are all heavier than normal hot Jupiters. Subsequently, HD149046 fell squarely below the proposed correlation, while HD189733 was spot on it, so the jury is still out." - http://obswww.unige.ch/~pont/Transitsin2005.htm

Seen in Vulpecula, at this time of year rising approximately east, around 7:30pm.

"The exosolar planet HD189733b was detected in Oct. 2005 using radial velocity measurement by F. Bouchy at the Haute-Provence Obs. in France. The planet has an orbital period of 2.219 days and a mass of 1.15 Jupiters. The parent star, HD189733, has a mass of 0.82 solar masses and is a stellar class G5, very similar in color and temperature to our own Sun. HD189733 is located in the constellation Velpecula approx. 60 light years from Earth. The graph below plots the brightness, magnitude, of the star over the course of 4.8 hours. As the exosolar planet passed between its parent star and Earth, its shadow diminished the intensity of the star by a factor of ~0.4%"

http://starkey.ws/exo-solar_planets.htm




Notes:
1 AU = 1.49597870691·10¹¹ m 1 year = 365.25 days = 31557600 s 1 M_E = 5.9742·10²⁴ kg
http://www.seikei.ac.jp/obs/disc/hd189733.htm
"The Sky - Student Edition"
Bouchy et al. 2005
Hipparcos