2021AJ....162...41T

Query : 2021AJ....162...41T

2021AJ....162...41T - Astron. J., 162, 41-41 (2021/August-0)

Speckle interferometry at SOAR in 2020.

TOKOVININ A., MASON B.D., MENDEZ R.A., COSTA E., MANN A.W. and HENRY T.J.

Abstract (from CDS):

The results of speckle interferometric observations at the 4.1 m Southern Astrophysical Research Telescope in 2020, as well as earlier unpublished data, are given, totaling 1735 measurements of 1288 resolved pairs and nonresolutions of 1177 targets. We resolved for the first time 59 new pairs or subsystems in known binaries, mostly among nearby dwarf stars. This work continues our long-term speckle program. Its main goal is to monitor orbital motion of close binaries, including members of high-order hierarchies and Hipparcos pairs in the solar neighborhood. We also report observations of 892 members of young moving groups and associations, where we resolved 103 new pairs.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Binary stars - Multiple stars - Stellar associations

VizieR on-line data: <Available at CDS (J/AJ/162/41): table2.dat table3.dat refs.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 12

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Number of rows : 12
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 1766A PM* 00 21 52.4837679816 -23 00 28.710835704   8.20 7.60 8.30   G1V 44 0
2 NAME HD 1766BC ** 00 21 52.6761890592 -23 00 23.224656276   10.10 9.15     ~ 7 0
3 HD 6708 ** 01 07 44.9303301984 -15 56 58.582491828   9.86 9.26     G1V 21 0
4 HD 17251 ** 02 45 59.6259575369 -04 57 23.267624388           F3V 44 0
5 StKM 1-442 ** 04 00 40.1216 -23 04 52.584   12.66 11.431 11.030   M0 21 0
6 TYC 7037-89-1 ** 04 14 04.839192 -31 55 22.43820   11.793 11.237 11.274   ~ 16 0
7 HD 286820 ** 04 26 48.2803386408 +10 52 15.804303960   10.477 9.432     K0 71 0
8 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
9 HD 30869 ** 04 51 49.9931074392 +13 39 18.486491220   6.751 6.250 7.34 5.674 F7V 204 0
10 BD+05 2529 SB* 11 41 49.5815862882 +05 08 26.563091663 12.012 10.818 9.585 8.802 8.133 K4V 68 0
11 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
12 HD 195307 * 20 28 30.6843656760 +48 55 08.057009676   8.32 6.67     K2 15 0

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