Notes for HD 128311

by Jean Schneider

update: 13 June 2002

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The planet(s):

• Detection method: Radial Velocity
• Basic data:

  Name:	HD 128311 b
  M.sini:	2.63 MJ
  Semi-major axis:	1.01
  Orbital period:	414. d.
  Eccentricity:	0.21
  Omega (deg):	200.
  T_peri (JD-2450000):	864.
  Inclinaison:	-

• Remarks:
• References:
  1. BUTLER P., MARCY G., VOGT S., FISCHER D.,HENRY G., LAUGHLIN G. & WRIGHT J., 2002b
     Seven New Keck Planets Orbiting G & K Dwarfs.
     ApJ., submitted
     preprint
• Other Web pages:
  1. Velocity curve and data (California Planet Search Team)

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The star:

• Distance: 16.6 pc
• Spectral type: K0
• Apparent magnitude: V = 7.51
• Metallicity: [Fe/H] = 0.08
• Mass (M_sun): M = 0.80
• Coordinates (2000):     RA = 14 36 00.5607       DEC = +09 44 47.466
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 128311 ' in the `objects' field)

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