Notes for GJ 3021

Alias HD 1237

by Jean Schneider

update: 22 November 2000

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The planet(s):

• Detection method: Radial velocity.
• Basic data:

  Name:	GJ 3021 b
  M.sini:	3.32 MJ
  Semi-major axis:	0.49 AU
  Orbital period:	133.82 ± 0.2 d.
  Eccentricity:	0.505 ± 0.018
  Omega (deg):	291 ± 3
  T_peri (JD-2450000):	1412.48
  Inclinaison:	-

• Remarks:
  22 Nov. 00: From astrometry Han et al (2000) claim a preliminary mass of 16 M_J and inclination of 11.8^o
  
• References:
  2. HAN I., BLACK D. & GATEWOOD G., 2000
     Preliminary astrometric masses for proposed exrasolar planetary companions.
     ApJ. Letters, 548, 57
     paper
  3. NAEF D., MAYOR M., PEPE F., QUELOZ D., UDRY S. & BURNET M., 2000
     A planetary companion around the young G6 dawrf Gliese-Jahrheiss 3021.
     Contribution to the "Disks, Planetesimals and Planets" Conference, Tenerife, Jan. 2000
     paper
• Other Web pages:
  1. Star and planet data (Geneva)
  2. Announcement

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The star:

• Distance: 17.62 pc
• Spectral type: G6V
• Apparent magnitude: V = 6.59
• Coordinates (2000):     RA = 00 16 12.6775       DEC = -79 51 04.254
• Metallicity: [Fe/H] = 0.2
• Mass (M_sun): M = 0.9
• More data:
  • Basic Data (from simbad )
  • Most recent refs. (from ADS; enter ` GJ 3021 ' in the `objects' field)

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