Notes for HD 178911 B

by Jean Schneider

update: 2O April 2003

The planets:

• Detection method: Radial Velocity
• Basic data:

  Name:	HIP 94075 b
  M.sini:	6.292 ± 0.059 MJ
  Semi-major axis:	0.32 AU
  Orbital period:	71.487 ± 0.018 d.
  Eccentricity:	0.1243 ± 0.0075
  Omega (deg):	175.6 ± 4.2
  T_peri (JD-2450000):	306.45 ± 0.73
  Inclination:	-

• Remarks:
  20 apr. 03: Planet in wide (a ~ 640 AU) binary system (Eggenberger et al 2003)
  Name HD 178911 B not in Simbad; HIP 94075 or ADS 12101 B instaed
• References:
  • EGGENBERGER A., UDRY S. & MAYOR M., 2003
    Planets in binaries.
    in Scientific Frontiers in Research on Extrasolar Planets, ASP Conference Series. D.Deming and S.Seager, eds.
    paper
  • ZUCKER S., NAEF D., LATHAM D., MAYOR M., MAZEH T., BEUZIT J.-L., DRUKIER G., PERRIER-BELLET C., QUELOZ D., SIVAN J.-P., TORRES G., & UDRY S., 2001d
    A Planet Candidate in the Stellar Triple System HD 178911.
    ApJ., 568, 363
    paper

• Other Web pages:
  • Geneva Observatory velocity curve and data
  • ESO Pess release (4 April 2001)

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  The star:

  • Distance: 46.73 pc
  • Spectral type: G5
  • Apparent magnitude: B = 8.71, V = 7.98
  • Absolute luminosity: !.3 L_sun
  • Coordinates (2000): RA = 19 09 03.1039 , DEC = +34 35 59.454
  • Metallicity: [Fe/H]= 0.28
  • Mass (M_sun): M= 0.87
  • More data:
    • Basic Data (from Simbad)
    • Most recent refs. (from ADS; enter `HIP 94075' in the `objects' field)

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