2020AJ....160..251T

Query : 2020AJ....160..251T

2020AJ....160..251T - Astron. J., 160, 251-251 (2020/December-0)

Orbits of five triple stars.

TOKOVININ A. and LATHAM D.W.

Abstract (from CDS):

Joint analysis of radial velocities and position measurements of five hierarchical stellar systems is undertaken to determine elements of their inner and outer orbits and, whenever possible, their mutual inclinations. The inner and outer periods are 12.9 and 345 yr for HD 12376 (ADS 1613), 1.14 and ∼1500 yr for HD 19971 (ADS 2390), 8.3 and 475 yr for HD 89795 (ADS 7338), 1.11 and 40 yr for HD 152027, 0.69 and 7.4 yr for HD 190412. The latter system with its coplanar and quasi-circular orbits belongs to the family of compact planetary-like hierarchies, while the orbits in HD 12376 have a mutual inclination of 131°.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Spectroscopic binary stars - Visual binary stars

VizieR on-line data: <Available at CDS (J/AJ/160/251): table1.dat table4.dat table5.dat>

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 12376 ** 02 02 12.9409229688 +36 43 01.218000288   9.01 8.20 7.7   G9V 89 0
2 HD 19771 ** 03 12 09.51967 +37 13 04.0239           G0 55 0
3 HD 89795 ** 10 21 43.46420 -09 46 25.9930   8.891 8.396 8.492   G2V 40 0
4 HD 91962 SB* 10 36 59.9979931102 -08 50 23.512435908   7.87 7.23   6.34 G1V 77 0
5 HD 152027 ** 16 44 36.02684 +71 45 24.9752   9.736 8.856 8.875   G5 33 0
6 HD 190412 SB* 20 04 46.6346537280 +01 09 21.766419900   8.38 7.68     G6/8V 59 0

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