WDS 18339+5144 ZUC 16 (BY Dra) : NOTES
 
 
discov_num notes refcode
ZUC 16 TOK 31.
GJ 719. Primary is 6d SB2; period of wide pair esimated at 3800y. The
114-day astrometric orbit by HIPPARCOS is not supported by RV. This is
a PMS spotted binary BY Dra. Tok2006
BY Dra Hipparcos astrometric solution assumed circular orbit (e = omega = 0) HIP1997d
Combined spectroscopic/astrometric (Palomar Testbed Interferometer)
solution by Boden & Lane (2001), including determination of distance, Bod2001
masses, luminosities, etc.
Low-mass SB2. Helminiak et al. calculate a combined spectroscopic/
astrometric orbit by combining precise RVs with archival astrometric
data from the Palomar Testbed Interferometer. They derive masses 0.792
+/- 0.026 and 0.697 +/- 0.023 Msun, radii 7.400 +/- 0.016 and 8.414
+/- 0.016 Rsun, parallax 60.43 +/- 0.12 mas. They conclude it is not
a pre-main sequence system, despite its high orbital eccentricity Hel2012
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
masses of 9.00 +/- 32.45, 1.36, and 0.62 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Bod2001 orb - Boden, A.F. & Lane, B.F. 2001ApJ...547.1071B
Bod2001 ApJ 547, 1071, 2001
Hel2012 orb - Helminiak, K.G., Konacki, M., Muterspaugh, M.W., Browne, S.E., Howard, A.W., & 2012MNRAS.419.1285H
Hel2012 Kulkarni, S.R.
Hel2012 MNRAS 419, 1285, 2012
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Tok2006 A j Tokovinin, A., Thomas, S., Sterzik, M., & Udry, S. 2006A&A...450..681T
Tok2006 +E2 A&A 450, 681, 2006
 
 
DISCOVERER
 
 
idgroup discov author
1 ZUC Zuckerman, B. & Becklin, E.E.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18339+5144 ZUC 16 1998 3 46 16.9 8.20   N D 183355.77+514308.9
18339+5144 ZUC 16 2003 4 47 16.5 8.45 15.10 N D 183355.77+514308.9
18339+5144 ZUC 16 2010 5 46 17.0 8.45 15.10 K4V+Ke N 183355.77+514308.9
18339+5144 ZUC 16 2015 6 47 17.0 8.45 15.10 K4V+Ke N 183355.77+514308.9
18339+5144 ZUC 16 2016 8 47 17.0 8.45 15.10 K4V+K7.5 N 183355.77+514308.9

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