WDS 03321+4340 COU 1688 AB (HD 21727) : NOTES
 
 
discov_num notes refcode
COU1688 AB: A premature orbit has been calculated with very sparse data, since
most of the observations are negative.
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 3.58 +/- 1.35, 2.16, and 0.95 Msun, respectively. Mlk2012
LDS9155 AC: Old LDS6155. HIP 16467. See Allen et al. (2000) for information on AlC2000
metallicity, age, galactic orbital parameters, etc.
NLTT 11124/11125 Chm2004
 
 
REFERENCES
 
 
refcode metd author reference
AlC2000 Po - Allen, C., Poveda, A., & Herrera, M 2000A&A...356..529A
AlC2000 A&A 356, 529, 2000
Baz1993d orb - Baize, P. 1993IAUDS.121....1B
Baz1993d Inf. Circ. 121, 1, 1993
Chm2004 E - Chaname, J. & Gould, A. 2004ApJ...601..289C
Chm2004 ApJ 601, 289, 2004
Chm2004 (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004 versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004 identical to discovery observations - predominantly close pairs - were assumed
Chm2004 not new observations, so not included in WDS. Similar concerns when primary and
Chm2004 secondary magnitudes or proper motions were the same.)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 COU Couteau, P.
240 LDS Luyten p.m. catalog (from additional DD list)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
03321+4340 COU1688 AB 1986 4 138 0.1 8.56 8.90 G5 NO 033205.10+434011.5
03321+4340 COU1688 AB 2008 5 135 0.2 8.56 8.90 G5 NO 033205.10+434011.5
03321+4340 COU1688 AB 2012 6 153 0.4 8.56 8.90 G5 NO 033205.10+434011.5

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