Planet BD20 2457 c

Name BD20 2457 c
Discovered in 2009
Mass 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 2453867.45 (± 27.99) JD
Radius
Inclination
Update Aug. 27, 2014
Detection Method Radial Velocity
Mass Detection Method
Radius Detection method
Molecules detected
Primary transit
Secondary transit
Anomaly angle
impact Parameter b
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitute
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Observability Predictor

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)
Detected Disc
Magnetic Field
RA2000 10:16:45.0
Dec2000 +19:53:29
Alternate Names
Planetary system 2 planets

More data


Related publications

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

Taxonomy of the extrasolar planet
2012 PLAVALOVA E.
Astrobiology, 12, 361
paper   arxiv

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 barycentric motion of exoplanet host stars - Tests of solar spin-orbit coupling
2011 PERRYMAN M. & SCHULZE-HARTUNG T.
Astron. & Astrophys., 525, A65
paper

The Exoplanet Orbit Database
2011 WRIGHT J., FAKHOURI O., MARCY G., HAN E., FENG Y., JOHNSON A., HOWARD A., VALENTI J., ANDERSON J. & PISKUNOV N.
PASP, 123, 412
paper   arxiv

Quantization of Planetary Systems and its Dependency on Stellar Rotation
2011 ZOGHBI J.-P.
Publ. Astron. Soc. Australia, 28, 177
paper   arxiv   ADS  

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

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

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

Exoplanet Data Explorer
2010 WRIGHT J., MARCY G. & the California Planet Survey consortium
web page

The barycentric motion of exoplanet host stars: Tests of solar spin-orbit coupling
2010 PERRYMAN M. & SCHULZE-HARTUNG T.
Astron. & Astrophys., 525, A65, 6 pp
paper   preprint

The Penn State - Toruń Planet Search: target characteristics and recent results
2010 ZIELINSKI P., NIEDZIELSKI A., WOLSZCZAN A., NOWAK G., ADAMOW M. & GETTEL S.
arxiv

The Role of Planet Accretion in Creating the Next Generation of Red Giant Rapid Rotators
2009 CARLBERG J., MAJEWSKI S. & ARRAS Ph.
ApJ.
preprint

Substellar-mass companions to the K-dwarf BD +14 4559 and the K-giants HD 240210 and BD +20 2457
2009 NIEDZIELSKI A., NOWAK G., ADAMOW M. & WOLSZCZAN A.
ApJ.
paper