Notes for HD 177830

by Jean Schneider

update: 22 November 2000

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The planet(s):

• Detection method: Radial velocity (Marcy et al.)
• Basic data:

  Name:	HD 177830 b
  M.sini:	1.28 MJ
  Semi-major axis:	1.00 AU
  Orbital period:	391
  Eccentricity:	0.43
  Omega (deg):	191
  T_peri (JD-2450000):	-565.14
  Inclinaison:	-

• Remarks:
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 55 M_J and inclination of 1.3^o
  
• References:
  1. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, accepted
     paper
  2. VOGT S., MARCY G., BUTLER P. & APPS K., 1999
     Six New Planets from the Keck Precision Velocity Survey
     ApJ., submitted
• Other Web pages:
  1. California Planet Search Team data

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The star:

• Distance: ~ 59 pc
• Spectral type: K0
• Apparent magnitude: V = 7.175
• Coordinates (2000):    RA = 19 05 20.7735       DEC = +25 55 14.379
• Metallicity: [Fe/H] = 0.0
• Mass (M_sun): M = 1.17
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` HD 177830 ' in the `objects' field)

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