Planet HR 8799 b

Name HR 8799 b
Discovered in 2008
M × sin i 7.0 ( -2.0 +4.0 ) MJ
Semi-major axis 68.0 AU
Orbital period 164250.0 day
Eccentricity
ω
Tperi
Radius 1.1 (± 0.1) RJ
Inclination 28.0 deg;
Update Oct. 13, 2011
Detection method detected by imaging
Molecules detected
Primary transit
Secondary transit
Anomaly angle
Time Vr=0 2047.1 JD
Calculated temperature
Measured temperature
Hottest point longitute
Surface gravity log(g/gH)

Star

Name HR 8799
Distance 39.4 (± 1.0) pc
Spectral type A5V
Apparent magnitude V 5.96
Mass 1.56 MSun
Age 0.06 ( -0.03 +0.03 ) Gyr
Effective temperature
Radius 1.5 (± 0.3) RSun
Metallicity [Fe/H] -0.47
RA2000 23:07:29.0
Dec2000 +21:08:03
Planetary system 4 planets

Other web-pages

T. Barman movies

More data


Related publications

Exoplanetary Atmospheres
Feb. 7, 2014 MADHUSUDHAN N., KNUTSON H., FORTNEY J. & BARMAN T.
in "Protostars and Planets VI"
arxiv  

Observations, Modeling and Theory of Debris Disks
Jan. 7, 2014 MATHEWS B., KRIKOV A., WYATT M., BRYDEN G. & EIROA C.
in Protostars & Planets VI., accepted
arxiv  

Resolved Imaging of the HR 8799 Debris Disk with Herschel
Dec. 13, 2013 MATTHEWS B., KENNEDY G., SIBTHORPE B., BOOTH M., WATT M. & 3 additional athors
ApJ, accepted
paper arxiv  

Imaged sub-stellar companions: not as eccentric as they appear? The effect of an unseen inner mass on derived orbits
Nov. 22, 2013 PEARCE T., WYATT M. & KENNEDY G.
MNRAS, in press
paper  arxiv  

Directly Imaged L-T Transition Exoplanets in the Mid-Infrared
Nov. 12, 2013 SKEMER A., MARLEY M., HINZ Ph., MORZINSKI K., STRUTSKIE M. & 13 additional authors
ApJ, submitted
arxiv  

A Systematic Retrieval Analysis of Secondary Eclipse Spectra III: Diagnosing Chemical Disequilibrium in Planetary Atmospheres
Sept. 27, 2013 LINE M. & YUNG Y.
ApJ, submitted
raxiv  

Multiple mean motion resonances in the HR 8799 planetary system
Aug. 30, 2013 GOZDZIEWSKI K. & MIGASZEWSKI C.
MNRAS, submitted
arxiv  

Signpost of Multiple Planets in Debris Disks
July 9, 2013 SU K. & RIEKE G.
in "Exploring the Formation and Evolution of Planetary Systems"
arxiv  

Effects of a planetesimal debris disk on stability scenarios for the extrasolar planetary system HR 8799
Jan. 11, 2013 MOORE A. & QUILLEN A.
MNRAS, accepted
arxiv  

LBT observations of the HR 8799 planetary system: First detection of HR8799e in H band
Dec. 18, 2012 ESPOSITO S., MESA D., SKEMER A., ARCIDIACONO C., CLAUDI R. & 30 additional authors
Astron. & Astrophys., 459, A52
paper  arxiv

Masses, Radii, and Cloud Properties of the HR 8799 Planets
July 20, 2012 MARLEY M., SAUMON D., CUSHING M., ACKERMAN A., FORTNEY J. & FREEDMAN R.
ApJ., 754, 135
paper   arxiv

First Light LBT AO Images of HR 8799 bcde at 1.65 and 3.3 Microns: New Discrepancies between Young Planets and Old Brown Dwarfs
June 9, 2012 SKEMER A., HINZ Ph., ESPOSITO E., BURROWS A., LEISENRING J. & 44 additional authors
ApJ., 753, 14
paper   arxiv

Direct Detection and Orbit Analysis of the Exoplanets HR 8799 bcd from Archival 2005 Keck/NIRC2 Data
June 5, 2012 CURRIE Th., FUKAGAWA M., THALMANN Ch., MATSUMURA S. & PLAVCHAN P.
ApJ.
arxiv

Extrasolar planet population synthesis IV. Correlations with disk metallicity, mass and lifetime
May 10, 2012 MORDASINI Ch., ALIBERT Y., BENZ W., KLAHR H. & HENNING Th.
Astron. & Astrophys., 541, A97
paper   arxiv

Direct Imaging of Extra-solar Planets - Homogeneous Comparison of Detected Planets and Candidates
Jan. 18, 2012 NEUHÄUSER R. & SCHMIDT T.
arxiv

Dependence of a planet's chaotic zone on particle eccentricity: the shape of debris disc inner edges
Jan. 16, 2012 MUSTILL A. & WYATT M.
MNRAS, 419, 3074
paper   arxiv

High-Mass, Four-Planet Models for HR 8799: Constraining the Orbital Inclination and Age of the System
Jan. 14, 2012 SUDOL J. & HAGHIGHIPOUR N.
ApJ, 755, 38
paper   arxiv

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

Adaptive Optics Observations of Exoplanets, Brown Dwarfs, & Binary Stars
Dec. 9, 2011 HINKLEY S.
arxiv

The effects of snowlines on C/O in planetary atmospheres
Nov. 22, 2011 OBERG K., MURRAY-CLAY R. & BERGIN E.
ApJ. Letters, 743, L16
paper   arxiv

Pulsating stars harbouring planets
Nov. 10, 2011 MOYA A.
arxiv

Orbital Motion of HR 8799 b,c, d using Hubble Space Telescope data from 1998: Constraints on Inclination, Eccentricity and Stability
Oct. 17, 2011 SOUMMER R., HAGAN B., PUEYO L., THORMANN A., RAJAN A. & MAROIS Ch.
ApJ., 741, 55
paper

Estimation of the XUV radiation onto close planets and their evaporation
Sept. 16, 2011 SANZ-FORCADA J., MICELA G., RIBAS I., POLLOCK A., EIROA C. & 2 additional authors
Astron. & Astrophys., 532, A6
paper   arxiv

Rapid inward migration of planets formed by gravitational instability
Sept. 13, 2011 BARUTEAU C., MERU F., PAARDEKOOPER S.-J.
MNRAS, 416, 1971
paper   arxiv

M-band Imaging of the HR 8799 Planetary System Using an Innovative LOCI-based Background Subtraction Technique
Sept. 3, 2011 GALICHER R., MAROIS Ch., MACINTOSH B., BARMAN T. & KONOPACKY Q.
ApJ. Letters, 739, L41
paper   arxiv

Defining and cataloging exoplanets: The exoplanet.eu database
Aug. 1, 2011 SCHNEIDER J., DEDIEU C., LE SIDANER P., SAVALLE R. & ZOLOTUKHIN I.
Astron. & Astrophys., 532, A79
paper   arxiv

Resolved Submillimeter Observations of the HR 8799 and HD 107146 Debris Disks
July 19, 2011 HUGHES A., WILNER D., ANDREWS S., WILLIAMS J., SU K. & 2 additional authors
ApJ.
arxiv

Spatially resolved submillimeter imaging of the HR 8799 debris disk
July 5, 2011 PATIENCE J., BULGER J., KING R., AYLIFFE B., BATE M. & 5 additional authors
Astron. & Astrophys., 531, L17
paper   arxiv

Dynamical evolution of planetary systems
June 22, 2011 MORBIDELLI A.
arxiv

Estimates of the Planet Yield from Ground-Based High-Contrast Imaging Observations as a Function of Stellar Mass
May 17, 2011 CREPP J. & JOHNSON J.
ApJ., 733, 126
paper   arxiv

Clouds and Chemistry in the Atmosphere of Extrasolar Planet HR8799b
May 6, 2011 BARMAN T., MACINTOSH B., KONOPACKY Q. & MAROIS Ch.
ApJ., 733, 65
paper   arxiv

VLT/NACO astrometry of the HR 8799 planetary system. L0-band observations of the three outer planets
March 28, 2011 BERGFORS C., BRANDNER W., JANSON M., KÖHLER R. & HENNING Th.
Astron. & Astrophys., 528, A134
paper

Formation of Giant Planets by Disk Instability on Wide Orbits Around Protostars with Varied Masses
March 25, 2011 BOSS A.
ApJ., 731, 74
paper   arxiv

Observational Constraints on Companions inside of 10 AU in the HR 8799 Planetary System
March 8, 2011 HINKLEY S., CARPENTER J., IRELAND M. & KRAUS A.
ApJ. Letters, 730, L21
paper   arxiv

Model atmospheres for massive gas giants with thick clouds: Application to the HR 8799 planets and predictions for future detections
Feb. 28, 2011 MADHUSUDHAN N., BURROWS A. & CURRIE Th.
ApJ.
arxiv

A Combined Subaru/VLT/MMT 1-5 μm Study of Planets Orbiting HR 8799: Implications for Atmospheric Properties, Masses, and Formation
Feb. 18, 2011 CURRIE Th., BURROWS A., ITOH Y., MATSUMURA S., FUKAGAWA M., APAI D., MADHUSUDHAN N., HINZ Ph., RODIGAS T., KASPER M., PYO T.-S. & OGINO S.
ApJ., 729, 128
paper

Latest Results from the DODO Survey: Imaging Planets around White Dwarfs
Feb. 3, 2011 HOGAN E., BURLEIGH M. & CLARKE F.
arxiv

Determination of the inclination of the multi-planet hosting star HR8799 using asteroseismology
Jan. 22, 2011 WRIGHT D., CHENE A.-N., De CAT P., MAROIS Ch., MATHIAS Ph., MACINTOSH B., ISAACS J., LEHMANN H. & HARTMANN M.
ApJ. Letters, 728, L20
paper   arxiv

Thermal Infrared MMTAO Observations of the HR 8799 Planetary System
Oct. 25, 2011 HINZ Ph., RODIGAS T., KENWORHY M., SIVANANDAM S., HEINZE A., MAMAJEK E. & MEYER M.
ApJ., 716, 417
paper   arxiv

Images of a fourth planet orbiting HR 8799
Dec. 23, 2010 MAROIS Ch., ZUCKERMAN B., KONOPACKY Q., MACINTOSH B. & BARMAN T.
Nature, 468, 1080
paper   arxiv

Exoplanet Atmospheres
Nov. 10, 2010 SEAGER S. & DEMING D.
Ann. Rev. Astron. Astrophys., 48, 631
paper

Non-redundant Aperture Masking Constraints on Massive Companions within 12 AU of the HR 8799 System
Nov. 2, 2010 HINKLEY S., CARPENTER J. & IRELAND M.
BAAS, 4, 302.04
abstract

Near-infrared Spectroscopy of the Extrasolar Planet HR 8799 b
Oct. 16, 2010 BOWLER B., LIU M., DUPUY T. & CUSHING M.
ApJ., 723, 850
paper

Dynamical simulations of the HR8799 planetary system
Oct. 7, 2010 MARSHALL J., HORNER J. & CARTER A.
Int. J. Astrobiol., 9, 259
paper

Formation and evolution of planetary systems: the impact of high angular resolution optical techniques
Sept. 15, 2010 ABSIL O. & MAWET D.
Astron. & Astrophys. Rev., 18, 317
paper   astro-ph

The Hill stability of the possible moons of extrasolar planets
Sept. 11, 2010 DONNISON J.
MNRAS, 406, 1918
paper

Exploring the conditions required to form giant planets via gravitational instability in massive protoplanetary discs
Aug. 6, 2010 MERU F. & BATE M.
MNRAS, 406, 2279
paper

The planetary system host HR 8799: On its λ Bootis nature
July 13, 2010 MOYA A., AMADO J., BARRADO D., GARCIA HERNANDEZ A., ABERASURI M., MONTESINOS B. & ACEITUNO F.
MNRAS, 406, 566
paper

Giant Planet Formation
June 30, 2010 D'ANGELO G., DURISEN R. & LISSAUER J.
paper

Age determination of the HR8799 planetary system using asteroseismology
June 3, 2010 MOYA A., AMADO J., BARRADO D., GARCIA HERNANDEZ A., ABERASURI M., MONTESINOS B. & ACEITUNO F.
MNRAS, 405, L81
paper

Metallicity of the Massive Protoplanets Around HR 8799 if Formed by Gravitational Instability
May 8, 2010 HELLED R. & BODENHEIMER P.
Icarus, 207, 503
paper

An image of an exoplanet separated by two diffraction beamwidths from a star
April 15, 2010 SERABYN E., MAWET D. & BURRUSS R.
Nature, 464, 1018
paper

Asteroseismic determination of the physical characteristics of the planetary system host HR 8799 (λ Bootis nature and age)
March 31, 2010 MOYA A., ARNADO P., BARRADO D., GARCIA-HERNANDEZ A., ABERASTURI, MONTESINOS B. & ACEITUNO F.
paper

Stability of the directly imaged multiplanet system HR 8799: resonance and masses
Jan. 30, 2010 FABRYCKY D. & MURRAY-CLAY R.
ApJ., 710, 1408
paper

The Runts of the Litter: Why Planets Formed Through Gravitational Instability Can Only Be Failed Binary Stars
Jan. 30, 2010 KRATTER K., MURRAY-CLAY R. & YOUDIN A.
ApJ., 710, 1375
paper

A Search for Wide Companions to the Extrasolar Planetary System HR 8799
Jan. 7, 2010 CLOSE L. & MALES J.
ApJ., 709, 342
paper

Homogeneous comparison of planet candidates imaged directly until 2008
Feb. 27, 2011 SCHMIDT T., NEUHÄUSER R. & SEIFAHRT A.
paper

Orbital Properties of the HR 8799 Planetary System
Nov. 27, 2009 KONOPACKY Q., MACINTOSH B., MAROIS C., BARMAN T. & GHEZ A.
BAAS, 42, 423.05
abstract

Imaging The Exoplanets In HR8799 With A Vector Vortex Coronagraph On The Palomar 1.5 M Diameter Well-corrected Subaperture
Nov. 18, 2009 SERABYN G., MAWET D. & BURRUSS R.
BAAS, 42, no 1, 377.06
abstract

Optical to Submillimeter Imaging of the Fomalhaut and HR 8799 Planetary Systems.
Nov. 18, 2009 KALAS P., FITZGERALD M., PAPADOPOULOS P., GRAHAM J., MANESS H., MATTHEWS B., CLAMPIN M., CHIANG E. & BASU K.
BAAS, 42, no 1, 377.07
abstract

High-Contrast Observations in Optical and Infrared Astronomy
Oct. 27, 2009 OPPENHEIMER B. & HINKLEY S.
Ann. Rev. Astron. & Astrophys., 47, 253
paper

Pre-Discovery 2007 Image of the HR 8799 Planetary System
Oct. 27, 2009 METCHEV S., MAROIS Ch. & ZUCKERMAN B.
ApJ. Letters, 705, L204
paper

Direct imaging of extrasolar planets: overview of ground and space programs
Oct. 23, 2009 BOCCALETTI A.
paper

The Debris Disk Around HR 8799
Oct. 15, 2009 SU K., RIEKE G., STAPELFELDT K., MALHOTRA R., bryden G., SMITH S., MISSELT K., MORO-MARTIN A. & WILLIAMS J.
ApJ., 705, 314
paper

Modeling Exoplanet Atmospheres: What do We Really Know?
Sept. 23, 2009 MARLEY M.
BAAS, 41, no 3, 31.03
abstract

The Formation Mechanism of Gas Giants on Wide Orbits
Sept. 22, 2009 DODSON-ROBINSON S., VERAS D., FORD E. & BEICHMAN C.
ApJ.
preprint

Planet Formation at Wide Separations: Constraints from HR 8799
Sept. 21, 2009 MURRAY-CLAY R., KRATTER K. & YOUDIN A.
BAAS, 41, no 3, 05.06
abstract

Is the HR 8799 extrasolar system destined for planetary scattering?
Sept. 8, 2009 GOZDZIEWSKI K. & MIGASZEWSKI C.
MNRAS, 397, L16
paper

Did Fomalhaut, HR 8799, and HL Tauri Form Planets via the Gravitational Instability? Placing Limits on the Required Disk Masses
Sept. 8, 2009 NERO D. & BJORKMAN E.
ApJ. Letters, 702, L158
paper

Direct Imaging of Exoplanets and Brown Dwarfs with the VLT: NACO Pupil-stabilised Lyot Coronagraphy at 4 µm
Sept. 8, 2009 KASPER M., AMICO P., POMPEI E., AGEORGES N., APAI D., ARGOMENDO J., KORMWEIBEL N. & LIDAN Ch.
Messenger, 137, 8
paper

A possible architecture of the planetary system HR 8799
Sept. 8, 2009 REIDEMEISTER M., KRIKOV A., SCHMIDT T., FIEDLER S., LÖHNE T. & MÜS.& NEUH&Aml;USER R.
Astron. & Astrophys., 503, 247

A possible architecture of the planetary system HR 8799
May 29, 2009 REIDMEISTER M., KRIKOV A., SCHMIDT T., FIEDLER S., MÜLLER S., LÖHNE T. & NEUHÄUSER R.
Astron. & Astrophys.
paper

Is the HR 8799 extrasolar system destined for planetary scattering?
April 28, 2009 GOZDZIEAWSKI K. & MAGASZEWSKI C.
MNRAS
preprint

H band Image of a Planetary Companion around HR 8799 in 2002
April 8, 2009 FUKAGAWA M., ITOH Y., TAMURA M., OASA Y., HAYASHI S., FUJITA Y., SHIBAI H. & HAYASHI M.
ApJ. Letters, 696, L1
paper

Stable Four-Planet Configurations for HR8799
April 8, 2009 SUDOL J., ASSALITA S., JOHNSTON B. & HAGHIGHIPOUR N.
BAAS, 41, no 2, 434.10
abstract

Multiple Planets Orbiting the Star HR 8799
April 8, 2009 MAROIS Ch., MACINTOSH B., BARMAN T., ZUCKERMAN B., SONG I., PATIENCE J., LAFRENIERE D. & DOYON R.
BAAS, 41, no 2, 230.03
abstract

HST/NICMOS detection of HR 8799 b in 1998
March 17, 2009 LAFRENIERE D., MAROIS Ch., DOYON R. & BARMAN T.
ApJ. Letters, 694, L148
paper

Seeing is Believing
Nov. 28, 2008 MARLEY M.
Science, 322, 1335
paper   Science

Direct Imaging of Multiple Planets Orbiting the Star HR 8799
Nov. 28, 2008 MAROIS C., MacINTOSH B., BARMAN T., ZUCKERMAN B., SONG I., PATIENCE J., LAFRENIERE D. & DOYON R.
Science, 322, 1348
paper   Science   astro-ph