Planet 55 Cnc b

Name 55 Cnc b
Planet Status Confirmed
Discovered in 1996
Mass 0.84 ( -0.031 +0.23 ) MJ
Mass*sin(i) 0.84 ( -0.031 +0.131 ) MJ +
Semi-Major Axis 0.11339 (± 0.00011) AU +
Orbital Period 14.65314 ( -0.00095 +0.0009 ) day +
Eccentricity 0.0023 ( -0.0016 +0.0025 ) +
ω 110.0 (± 54.0) deg +
Tperi 2453035.0 (± 2.2) JD +
Radius
Inclination 89.73 ( -24.54 +24.49 ) deg
Update 2017-06-11
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 71.47 (± 0.21) m/s
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

55 Cnc
Name 55 Cnc
Distance 12.34 (± 0.4) pc
Spectral type K0IV-V
Apparent magnitude V 5.95
Mass 1.015 (± 0.051) MSun +
Age 10.2 (± 2.5) Gyr
Effective temperature 5196.0 (± 24.0) K
Radius 0.98 (± 0.016) RSun +
Metallicity [Fe/H] 0.31 (± 0.04)
Detected Disc
Magnetic Field
RA2000 08:52:37.0
Dec2000 +28:20:02
Alternate Names TOI-1773
Planetary system
5 planets

Observability Predictor

Remarks

  1. 24 Mar. 05: Planet e challanged; Neptune-sized planet at ~ 0.8 AU? (Wisdom, 2005)
  2. 20 apr. 03: Planet in wide (a ~ 1065 AU) binary system (Eggenberger et al 2003)
  3. 12 Feb. 03 55 Cnc is one of the 5 targets of the 14 Feb. 03 "Cosmic Call" initiative
  4. 13 Jun. 02 Periodicity at 44 d. could be due to stellar rotation, but the planet interpretation is more likely (Marcy et al 2002)
  5. 4 Dec. 01:From astrometry with HST (McGrath et al 2002), M < 30 MJ
  6. 22 Nov. 00: From astrometry (Han et al. 2000) claim a preliminary mass of 126 MJ and inclination of 179.6o
  7. 24 Jul 00: The source of RV variation remains speculative, depending on completion of one full orbit (Fischer et al 2000).
    Possible second companion; see Butler et al. 1996, Jayawardhana et al. 2000.
    The star is surrounded by a dust disk extending at least a 40 AU, with an inclination of ~ 25o. If the planets are in the same plane than the disc, this gives to the first planet a mass of 1.9+1.1 -0.4 MJ (Trilling & Brown 1998, Trilling et al 2000). But disc not confirmed by Schneider et al (2000b)
    There may by a hole with a radius of ~ 10 AU in the disk (Jayawardhana et al 2000)
  8. The star has a companion (rho Cnc B) about 1150 AU away

Other web-pages


Related publications

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Stable chaos in the 55Cnc exoplanetary system?
2008 GAYON J., MARZARI F. & SCHOLL H.
MNRAS, 389, L1
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Planetpol polarimetry of the exoplanet systems 55 Cnc and tau Boo
2008 LUCAS P., HOUGH J., BAILEY J., TAMURA M., HIRST E. & HARRISON D.
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A dynamical perspective on additional planets in 55 Cancri
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Direct Spectroscopy of Non-Transiting Exoplanets
2008 BENDER C. & CARR J.
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A Search for Thermal Emission from Non-transiting Extrasolar Planets
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55 Cancri: A Laboratory for Testing Numerous Conjectures about Planet Formation
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Five Planets Orbiting 55 Cancri
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2007 MARCHI S.
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2007 MATSUO T., SHIBAI H., OOTSUBO T. & TAMURA M.
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2007 MANDELL A., RAYMOND S. & SIGURDSSON S.
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IRS Spectra of Solar-Type Stars: A Search for Asteroid Belt Analogs
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Effects of Secular Interactions in Extrasolar Planetary Systems
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Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems
2006 RAGHAVAN D., HENRY T., MASON B., SUBASAVAGE J., JAO W.-C., BEAULIEU T. & HAMBLY N.
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2006 SOTER S.
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2005 BARNES R. & GREENBERG R.
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On the Ages of Exoplanet Host Stars
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Oxygen abundances in planet-harbouring stars. Comparison of different abundance indicators
2005 ECUVILLON A., ISRAELIAN G., SANTOS N., SHCHUKINA N., MAYOR M. & REBOLO R.
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2005 BEAUGE C., CALLEGARI N., FERRAZ-MELLO S. & MICHTCHENKO T.
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2005 ZHOU J.-L. & SUN Y.-S.
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2005 BARAFFE I., CHABRIER G., BARMAN T., SELSIS F., ALLARD F. & HAUSCHILDT P.
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2005 GREENBERG R. & BARNES R.
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2005 SCHOLL H., MARZARI F. & TRICARICO P.
BAAS, 37 no 2, 28.06
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Frequency map analysis of the 3/1 resonance between planets b and c in the 55 Cancri system
2005 MARZARI F., SCHOLL H. & TRICARICO P.
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Detection of a Neptune-Mass Planet in the Rho1 Cancri.
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Stability of the 3:1 Resonance Locking in the 55 Cancri Planetary System.
2005 MARZARI F., SCHOLL H. & TRICARICO P.
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Detection of a Neptune-Mass Planet in the rho1 Cancri System using the Hobby-Eberly Telescope
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Astron. & Astrophys., 419, 989
paper

55 Cancri: A Planetary System on the Edge of Chaos.
2004 SCHOLL H. & MARZARI F.
ApJ. Letters

Predicting Planets in Known Extra-Solar Planetary Systems II: Testing for Saturn-Mass Planets.
2004 RAYMOND S. & BARNES R.
ApJ
preprint

Predicting Planets in Known Extra-Solar Planetary Systems III: Forming Terrestrial Planets.
2004 RAYMOND S. & BARNES R.
ApJ, 644, 1223
paper

Regularity of Extrasolar Planetary Systems and the Role of the Star Metallicity in the Formation of Planets (Review)
2004 KSANFOMALITY L.
Sol. Syst. Res., 38, 428
paper

Planets in multiple-star systems:properties and detections.
2004 UDRY S., EGGENBERGER A., MAYOR M., MAZEH T. & ZUCKER S.,
Revista Mexicana de Astronomia y Astrofisica Serie de Conferencias, 21, 208
paper

Dynamical Habitability in the Extrasolar Planetary Systems 47 UMa and 55 Cnc.
2004 FRANCK S., BOUNAMA C., von BLOH W. & CUNTZ M.
ApJ, 36, #1.01
abstract

Modeling Structure in Hypothetical Debris Disks Around Two Systems with Known Planets.
2003 HOLMES E. & BEICHMAN C.
BAAS, 35, N. 18.07
abstract

Planets in binaries.
2003 EGGENBERGER A., UDRY S. & MAYOR M.
paper

Dynamical Evolution of Planets in Disks.
2003 KLEY W.
Proc. of IAU Colloquium 189, Astrophysical Tides
paper

Could the 55 Cnc Planetary System Really Be in the 3:1 Mean Motion Resonance?
2003 JI J., KINOSHITA H., LIU L. & LI G.
ApJ. Letters, 585, L139
paper

New Sub-millimeter Limits on Dust in the 55 Cancri Planetary System.
2002 JAYAWARDHANA R., HOLLAND W., KALAS P., GREAVES J., DENT W., WYATT M & MARCY G.
ApJ. Letters., 570, L93
paper

A Planet at 5 AU Around 55 Cancri
2002 MARCY G., BUTLER P., FISCHER D., LAUGHLIN G., VOGT S., HENRY G. & POURBAIX D.
ApJ., 581, 1375
paper

The Interesting Dynamics of the 55 Cancri System.
2002 NOVAK G., LAI D. & LIN D.
Scientific Frontiers in Research on Extrasolar Planets
paper

Chemical Abundances of 15 Extrasolar-Planet Host Stars.
2002 ZHAO G., CHEN Y., QIU H. & LI. Z.
Astron. J., 124, 2224
paper

Preliminary astrometric masses for proposed extrasolar planetary companions.
2001 HAN I., BLACK D. & GATEWOOD G.
ApJ. Letters, 548, L57
paper

Photospheric Abundances of Volatile and Refractory Elements in Planet-Harboring Stars.
2001 TAKEDA Y., SATO B., KAMBE E., AOKI W., HONDA S., KAWANOMOTO S., MASUDA S., IZUMIURA H., WATANABE E., KOYANO H., MAEHARA H., NORIMOTO Y., OKADA T., SHIMIZU Y., URAGUCHI F., YANAGIZAWA K. YOSHIDA M., NIYAMA S. & ANDO H.
PASJ, 53, 1211
paper

Planetary Companions to HD 12661, HD 92788, Hd 38529 and Variations in Keplerian Residuals of Extrasolar Planets.
2001 FISCHER D., MARCY G., BUTLER P., VOGT S., FRINK S. & APPS K.
ApJ, 551, 1107
paper

Circumstellar Dust Disks around Stars with Known Planetary Companions.
2000 TRILLING D., BROWN R. & RIVKIN A.
ApJ., 529, 499
paper

NICMOS Coronagraphic Observations of 55 Cancri.
2000 SCHNEIDER G., BECKLIN E., SMITH B., WEINBERGER A., SILVERSTONE M. & HINES D.
Astron. J., 121, 525
paper

The Host Stars of Extrasolar Planets Have Normal Lithium Abundances.
2000 RYAN S
MNRAS, 316, L35
paper  arxiv

ubvy Photometry of stars with planets.
2000 GIMENEZ A.
Astron. & Astrophys., 356, 213
paper

Dust in the 55 Cancri planetary system.
2000 JAYAWARDHANA R., HOLLAND W., GREAVES J., DENT W., MARCY G., HARTMANN L. & FASIO G.
ApJ., 536, 425
paper

Molecular gas in the 55 Cnc planetary system.
1999 GREAVES J., HOLLAND JAYAWARDHANA R. & DENT W.
ApJ. Letters

Nearby stars of the Galactic disk and halo
1998 FUHRMANN K.
Astron. & Astrophys., 338, 161
paper

A Vega-like disk associated with the planetary system of {rho}1 Cnc.
1998 DOMINIK C., LAUREIJS R.J., JOURDAIN DE MUIZON M. & HABING H.J
Astron. & Astrophys., 329, L53
abstract and preprint

Imaging a Circumstellar Disk around a Star with a Radial-Velocity Planetary Companion
1998 TRILLING D. & BROWN R.
BAAS, 30, no 3, 23.03
abstract

F- and G-type stars with planetary companions: Andromedae, 1 Cancri, Bootis, 16 Cygni and Coronae Borealis
1998 FUHRMANN K., PFEIFFER M. & BERNKOPF J.
Astron. & Astrophys., 336, 942
paper

Imaging a Circumstellar Disk around a Star with a Radial-Velocity Planetary Companion
1998 TRILLING D. & BROWN R.
BAAS
abstract

A circumstellar dust disk around a star with a known planetary companion
1998 TRILLING D. & BROWN R.
Nature, 395, 775
abstract

Planet Hunters Become Weight Watchers.
1998 SCHILLING G.
Science, 282, 395
abstract

Search for Cyclotron-maser Radio Emission from Extrasolar Planets
1997 DULK G., LEBLANC Y. & BASTIAN T.
BAAS, 29, no 3, 28.03
abstract

Three new "51 Peg-type" planets
1997 BUTLER P., MARCY G., WILLIAMS E., HAUSER H. & SHIRTS P.
ApJ Letters, 474, L115
paper

Properties of sun-like stars with planets. II rho CNC, tau BOO and ups AND
1997 BALIUNAS S., HENRY, G.W., DONAHUE R.A., FEKEL F.C. & SOON W.H.
ApJ Letters, 474, L119
paper

Three new "51 Peg-type" planets
1997 BUTLER P., MARCY G., WILLIAMS E., HAUSER H. & SHIRTS P.
ApJ Letters, 474, L115
paper

Properties of sun-like stars with planets. II rho CNC, tau BOO and ups AND
1997 BALIUNAS S. HENRY, G.W., DONAHUE R.A., FEKEL F.C. & SOON W.H.
ApJ Letters, 474, L119
paper