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  The First Extrasolar Planet around a Solar-type Star
  Last update: January the 6th 2005

 
 
 
  • "The ELODIE survey for northern extra-solar planets III: Three planetary candidates detected with ELODIE"
    D. Naef, M. Mayor, J.L. Beuzit, C. Perrier, D. Queloz, J.P. Sivan, S. Udry, 2004
    A&A 414, 351 (ADS)
  • "A Jupiter-Mass Companion to a Solar-Type Star"
    M. Mayor & D. Queloz, 1995
    Nature 378, 355 (ADS)

    •  

    Larger image (45 kb)


  • Orbital solution from Naef et al. 2004:

    Object
    Period
    (days)
    T0
    (JD - 2 400 000)
    Eccentricity
    V
    (km/s)
    Omega
    (deg)
    K1
    (km/s)
    m2sini
    (M_Jup)
    a
    (AU)
    N
    Residuals
    (m/s)
    51 Peg
    4.23077 +/- 0.00005
    52497.0 +/- 0.022
    0 (fixed)
    -33.2516 +/- 0.0006
    0 (fixed)
    0.0573 +/- 0.0008
    0.468 +/- 0.007
    0.052
    153
    11.8


  • Stellar properties:

    Parameter
    Value
    Reference
    Sp. Type
    G5V
    Hipparcos
    pi (mas)
    65.10
    Hipparcos
    d (pc)
    15.36
    Hipparcos
    m_v (mag)
    5.45
    Hipparcos
    B-V (mag)
    0.666
    Hipparcos
    T_eff (K)
    5665
    Flower 1996
    M_v (mag)
    4.52
    -
    L (L_sol)
    1.35
    -
    log(g) (CGS)
    -
    -
    M_1 (M_sol)
    1.04
    Santos et al. 2003
    log(R'HK)
    -5.037
    Noyes et al. 1984
    P_rot (d)
    29.7
    Noyes et al. 1984
    Vsini (km/s)
    2.8
    Elodie
    Age (Gyr)
    -
    -
    [Fe/H]
    0.19
    -


  • Links:
  • 51 Peg at OHP

  • 51 Peg @ exoplanets.org (Confirmation)

  • 51 Peg b confirmed by the AFOE team


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    stephane.udry@obs.unige.ch