Notes for HD 89744

by Jean Schneider

update: 18 September 2001

---

The planet(s):

• Detection method: Radial veolocity
• Basic data:

  The star:

  Name:	HD 89744 b
  M.sini:	7.2 MJ
  Semi-major axis:	0.88 AU
  Orbital period:	256.0 ± 0.7 d.
  Eccentricity:	0.70 ± 0.02
  Omega (deg):	192
  T_peri (JD-2450000):	1505.14
  Inclinaison:	-

  Remarks:
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 97 M_J and inclination of 175.8^o
  
• References:
  1. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, accepted
     paper
  2. KORZENNIK S., BROWN T., FISCHER D., NISENSON P. & NOYES R., 2000
     A High-Eccentricity Low-Mass companion to HD 89744.
     ApJ. Letters, accepted
     preprint
  3. 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., 2001
     Photospheric Abundances of Volatile and Refractory Elements in Planet-Harboring Stars.
     PASJ, 53, 1211
     paper
• Other Web pages:
  1. Radial velocity curve and complete data (AFOE)
  2. Planet data (California and Carnegie Planet Search)

  ---

  
  
  • Distance: 40 pc
  • Spectral type: F7 V
  • Apparent magnitude: V = 5.741
  • Coordinates (2000):     RA = 10 22 10.5621       DEC = +41 13 46.308
  • Metallicity: [Fe/H]= 0.18
  • Mass (M_sun): M= 1.40
  • More data:
    • Basic Data (from simbad )
    • Most recent refs. (from ADS; enter ` HD 89744 ' in the `objects' field)

  ---

  Back to the Extra-solar Planets Catalog