Planet Aldebaran b
| Name | Aldebaran b | ||
| Planet Status | Controversial | ||
| 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 | 614.1 (± 1.18) day | |
+ |
| Eccentricity | 0.24 (± 0.04) | |
+ |
| ω | 336.2 (± 9.7) deg | |
+ |
| Tperi | 2452688.1 (± 15.8) JD | |
+ |
| Radius | — | ||
| Inclination | — | ||
| Update | 2019-03-25 | ||
| 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 | 125.42 (± 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 |
Observability Predictor 
Remarks
25 Mar 2019: According to Reichert et al. 2019: "Oscillatory convective modes might be a plausible alternative explanation of the observed radial-velocity variations."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
Precise radial velocities of giant stars. XII. Evidence against the proposed planet Aldebaran b
2019
REICHERT K., REFFERT S., STOCK S., TRIFONOV T. & QUIRRENBACH A.
Astron. & Astrophys., accepted
arxiv
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
Density Estimation for Projected Exoplanet Quantities
2011
BROWN R.
ApJ., 733, 68
paper
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
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
