Planet BD20 2457 c

Name BD20 2457 c
Discovered in 2009
M × sin i 12.47 MJ
Semi-major axis 2.01 AU
Orbital period 621.99 (± 10.2) day
Eccentricity 0.18 (± 0.06)
ω 126.02 (± 16.54) deg
Tperi 53866.95 (± 27.99) JD
Radius
Inclination
Update June 10, 2009
Detection method detected by radial velocity
Molecules detected
Primary transit
Secondary transit
Anomaly angle
Time Vr=0
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)

Star

Name BD20 2457
Distance 200.0 (± 100.0) pc
Spectral type K2II
Apparent magnitude V 9.75
Mass 2.8 (± 1.5) MSun
Age
Effective temperature 4127.0 (± 17.0) K
Radius
Metallicity [Fe/H] -1.0 (± 0.07)
RA2000 10:16:45.0
Dec2000 +19:53:29
Planetary system 2 planets

More data


Related publications

A Dynamical Investigation of the Proposed BD +20 2457 System
Jan. 14, 2014 HORNER J., WITTENMYER R., HINSE T. & MARSHALL J.
MNRAS, accepted
arxiv 

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April 21, 2012 PLAVALOVA E.
Astrobiology, 12, 361
paper   arxiv

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
Feb. 10, 2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS
arxiv

The Exoplanet Handbook
May 22, 2012 Michael Perryman
Content
Content and Chapter 5

On the Ages of Planetary Systems with Mean Motion Resonances
Oct. 17, 2011 KORISKI Sh. & ZUCKER Sh.
ApJ. Letters, 741, L23
paper   arxiv

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Astron. & Astrophys., 532, A79
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Density Estimation for Projected Exoplanet Quantities
May 6, 2011 BROWN R.
ApJ., 733, 68
paper

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April 23, 2011 WRIGHT J., FAKHOURI O., MARCY G., HAN E., FENG Y., JOHNSON A., HOWARD A., VALENTI J., ANDERSON J. & PISKUNOV N.
PASP, 123, 412
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March 8, 2011 ZOGHBI J.-P.
Publ. Astron. Soc. Australia
arxiv

The barycentric motion of exoplanet host stars - Tests of solar spin-orbit coupling
Dec. 14, 2010 PERRYMAN M. & SCHULZE-HARTUNG T.
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paper

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Dec. 6, 2010 WRIGHT J., MARCY G. & the California Planet Survey consortium
web page

The Penn State - Toruń Planet Search: target characteristics and recent results
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arxiv

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Astron. & Astrophys.
preprint

Substellar-mass companions to the K-dwarf BD +14 4559 and the K-giants HD 240210 and BD +20 2457
July 2, 2010 NIEDZIELSKI A., NOWAK G., ADAMOW M. & WOLSZCZAN A.
ApJ.
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The Role of Planet Accretion in Creating the Next Generation of Red Giant Rapid Rotators
June 10, 2009 CARLBERG J., MAJEWSKI S. & ARRAS Ph.
ApJ.
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