WDS 12151-0715 STF 1619 AC : NOTES
 
 
discov_num notes refcode
STF1619 AB: NLTT 30106/30107 Chm2004
C is BD-06@3533.
A rectilinear solution to AB gives a poor fit, due to slight apparent
curvature suggesting very long-period orbital motion.
AB: The AB pair is comprised of a K0V and a K1V star, at a distance of
35.19 +/- 0.74pc. The C component is not a physical companion. Rica et
al. (2017) derive a combined spectroscopic/astrometric orbit of AB,
finding a period of 4800 years and a separation of 345au. The orbit is
perturbed by a circumprimary planet of mass 9.6 Mjup, previously
discovered through radial velocity variations (Mayor et al., 2011 A&A
submitted, arXiv:1109.2497M) FMR2017
 
 
REFERENCES
 
 
refcode metd author reference
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.)
FMR2017 orb j Rica, F.M., Barrena, R., Henriquez, J.A., Perez, F.M., & Vargas, P. 2017PASA...14....4R
FMR2017 +Hw Pub. Astr. Soc. Australia 14, 4, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12151-0715 STF1619 AC 2002 8 166 98.8 8.06 10.46 G5 N D 121506.57-071526.4
12151-0715 STF1619 AC 2014 10 163 98.3 8.06 10.46 G5 N 121506.57-071526.4
12151-0715 STF1619 AC 2015 14 163 99.1 8.06 10.46 G5 N 121506.57-071526.4

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