Planet Aldebaran b

Name Aldebaran b
Planet Status Confirmed
Discovered in 1998
Mass 6.47 ( -0.53 +0.53 ) MJ
Mass*sin(i) 6.47 ( -0.53 +0.53 ) MJ
Semi-Major Axis 1.46 (± 0.27) AU
Orbital Period 628.96 (± 0.9) day +
Eccentricity 0.1 (± 0.05)
ω 287.0 (± 29.0) deg +
Tperi 2451297.0 (± 50.0) JD +
Radius
Inclination
Update 2015-05-15
Detection Method Radial Velocity
Mass Detection Method Radial Velocity
Radius Detection Method
Primary transit
Secondary transit
λ
Impact Parameter b
Time Vr=0
Velocity Semiamplitude K 142.1 (± 7.2) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

Aldebaran
Name Aldebaran
Distance 20.43 (± 0.32) pc
Spectral type K5III
Apparent magnitude V 0.85
Mass 1.13 (± 0.11) MSun +
Age 6.6 (± 2.4) Gyr
Effective temperature 4055.0 (± 70.0) K
Radius 45.1 (± 0.1) RSun
Metallicity [Fe/H] -0.27 (± 0.05)
Detected Disc
Magnetic Field
RA2000 04:35:55.0
Dec2000 +16:30:33
Alternate Names alf Tau
Planetary system 1 planet

More data

Observability Predictor

Remarks

20 Dec 2010: According to Hatzes 2008: "The most likely explanation for the 630-day RV variations is that they are due to a planetary companion." But the planet is still not published in a refereed Journal.

Related publications

Aldebaran b's temperate past uncovered in planet search data
2018 FARR W., POPE B., DAVIES G., NORTH Th., WHITE T. et al.
ApJ Lett, 865, L20
paper  arxiv  

Feasibility of spectro-polarimetric characterization of exoplanetary atmospheres with direct observing instruments
2017 TAKAHASHI J., MATSUO T. & ITOH Y.
Astron. & Astrophys., 599, A56
paper  

Long-lived, long-period radial velocity variations in Aldebaran: A planetary companion and stellar activity
2015 HATZES A., COCHRAN W., ENDL M., GUENTHER E., MacQUEEN P. et al.
Astron. & Astrophys., 580, A31
paper  arxiv  ADS

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS, 423, Issue 3, 2800-2814
paper  arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

Defining and cataloging exoplanets: The exoplanet.eu database
2011 SCHNEIDER J., DEDIEU C., LE SIDANER P., SAVALLE R. & ZOLOTUKHIN I.
Astron. & Astrophys., 532, A79
paper   arxiv

Density Estimation for Projected Exoplanet Quantities
2011 BROWN R.
ApJ., 733, 68
paper

Extrasolar planets around intermediate mass stars
2008 HATZES A.
Physica Scripta, T130, 014004
paper

On the Nature of the Radial Velocity Variability of Aldebaran: A Search for Spectral Line Bisector Variations
1998 HATZES A. & COCHRAN W.
MNRAS, 293, 469
paper