2021RAA....21...58E

Query : 2021RAA....21...58E

2021RAA....21...58E - Research in Astron. and astroph., 21, 58-58 (2021/March-0)

Research on the HIP 18856 binary system.

EFREMOVA P., MITROFANOVA A., DYACHENKO V., BESKAKOTOV A., MAKSIMOV A., RASTEGAEV D., BALEGA Y. and KOMARINSKY S.

Abstract (from CDS):

The results of a study on the binary HIP 18856 and construction of its orbit are presented. New observational data were obtained at the BTA of SAO RAS in 2007-2019. Earlier, Cvetkovic et al. constructed the orbit for this system. However, it is based on six measurements, which cover a small part of the orbit. The positional parameters of the ESA astrometric satellite Hipparcos published speckle interferometric data (Mason et al., Balega et al., Horch et al.) and new ones were used in this study. Based on the new orbital parameters, the mass sum was calculated and the physical parameters of the components were found. The obtained orbital and fundamental parameters were compared with the data from the study by Cvetkovic et al.. The comparison shows that the new orbital solution is better than the old one, since it fits new observational data accurately. Also based on a qualitative evaluation performed by Worley & Heintz, the new orbit was classified as "reliable", which means data cover more than half of the orbit with sufficient quantities of residuals of measurements.

Abstract Copyright: ∼

Journal keyword(s): techniques: high angular resolution, speckle interferometry - stars: low-mass, fundamental parameters - stars: binaries: spectroscopic - stars: individual: HIP 18856

Simbad objects: 1

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Number of rows : 1
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 BD+06 620 ** 04 02 32.8398896712 +06 37 52.082783760   11.68 10.80     K7 18 0

Query : 2021RAA....21...58E

Basic data :
BD+06 620 -- Double or Multiple Star
Other object types: otypes_help 		* (BD,GSC,...), ** (2002A&A,**,...), NIR (2MASS)
ICRS coord. (ep=J2000) : 		04 02 32.8398896712 +06 37 52.082783760 (Optical) [ 0.3253 0.3126 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		03 59 52.5201738232 +06 29 36.103239119 [ 0.3253 0.3126 90 ]
Gal coord. (ep=J2000) : 		183.9671554579484 -32.7808440062525 [ 0.3253 0.3126 90 ]
Proper motions mas/yr : 		-29.461 -11.392 [0.410 0.369 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -10.89 [0.34] / z(spectroscopic) -0.000036 [0.000001] / cz -10.89 [0.34]
   (Opt) A 2018yCat.1345....0G
Parallaxes (mas): 		13.5431 [0.3744] A 2020yCat.1350....0G
Spectral type: 		K7 D ~
Angular size (arcmin): 		0.0017 0.0 57 (Opt) D 2001AJ....122.3466M
Fluxes (6) :
B 11.68 [0.10] D 2000A&A...355L..27H
V 10.80 [0.06] D 2000A&A...355L..27H
G 10.330775 [0.002876] C 2020yCat.1350....0G
J 8.741 [0.027] C 2003yCat.2246....0C
H 8.194 [0.046] C 2003yCat.2246....0C
K 8.118 [0.033] C 2003yCat.2246....0C
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Identifiers (12) :
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BD+06 620 HIC 18856 TIC 407963605 Gaia DR2 3297820686103327232
** HDS 510 HIP 18856 TYC 79-983-1 Gaia DR3 3297820686103327232
GSC 00079-00983 2MASS J04023284+0637522 WDS J04025+0638AB Gaia DR1 3297820681806424064

References (18 between 1850 and 2026) (Total 18)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 1    Distance : 2    Plx : 5    PM : 4   

   

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Link by name to the catalogue in VizieR :

BD+06 620 GSC 00079-00983 HIC 18856 HIP 18856 2MASS J04023284+0637522
TYC 79-983-1 WDS J04025+0638AB Gaia DR2 3297820686103327232 Gaia DR3 3297820686103327232 Gaia DR1 3297820681806424064

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