1997A&AS..122..515Z


Query : 1997A&AS..122..515Z

1997A&AS..122..515Z - Astron. Astrophys., Suppl. Ser., 122, 515-519 (1997/May-1)

HL Aurigae: A near-contact binary system.

ZHANG R.X., FANG M.J. and ZHAI D.S.

Abstract (from CDS):

Photoelectric observations of HL Aur were carried out with the 60cm reflector of Beijing Astronomical Observatory in 1990 and 1994, and the first photoelectric BV light curves were obtained along with a newly derived ephemeris. The period of the system appears to be constant over the past 65-years. Using the Wilson-Devinney program a photometric analysis of the B and V light curves is performed. It is evident that HL Aur is a near-contact binary with a mass ratio of q=m2/m1=0.722±0.011. The primary component of the system is essentially in contact with its Roche lobe, while the secondary is detached but nearly in contact with its lobe. It is found that the components of the system are slightly evolved and located near the terminal-age main sequence. The binary is consistent with the general evolutionary picture for near-contact systems.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: HL Aur - binaries: eclipsing

VizieR on-line data: <Available at CDS (J/A+AS/122/515): table3a table3b table5>

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 V* HL Aur EB* 06 19 13.0405702536 +49 42 06.920990208   11.59 11.08     F4 60 0

Query : 1997A&AS..122..515Z

Basic data :
V* HL Aur -- Eclipsing Binary
Other object types:
otypes_help
EB* (2015AJ), V* (CSV,V*,...), * (GSC,TYC,...), NIR (2MASS)
ICRS coord. (ep=J2000) :
06 19 13.0405702536 +49 42 06.920990208 (Optical) [ 0.0501 0.0535 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) :
06 15 20.7245982703 +49 43 22.150610192 [ 0.0501 0.0535 90 ]
Gal coord. (ep=J2000) :
164.5781324750758 +15.4927236736758 [ 0.0501 0.0535 90 ]
Proper motions mas/yr :
-1.271 5.355 [0.055 0.054 90] A 2020yCat.1350....0G
Parallaxes (mas):
1.946 [0.055] A 2020yCat.1350....0G
Spectral type:
F4 D ~
Fluxes (6) :
B 11.59 [0.09] D 2000A&A...355L..27H
V 11.08 [0.09] D 2000A&A...355L..27H
G 10.855038 [0.009050] C 2020yCat.1350....0G
J 9.819 [0.023] C 2003yCat.2246....0C
H 9.604 [0.023] C 2003yCat.2246....0C
K 9.517 [0.018] C 2003yCat.2246....0C
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Identifiers (11) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

SV* SON 4727 2MASS J06191303+4942069 V* HL Aur Gaia DR3 970854821569494912
CSV 729 TIC 241247657 [YWW2015] SA38 2247 Gaia DR1 970854817272431104
GSC 03383-00696 TYC 3383-696-1 Gaia DR2 970854821569494912

References (60 between 1850 and 2026) (Total 60)
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

Distance : 2    Var : 5    Plx : 3    PM : 2   

   


External archives :

Link by name to the catalogue in VizieR :

GSC 03383-00696 2MASS J06191303+4942069 TYC 3383-696-1 V* HL Aur Gaia DR2 970854821569494912
Gaia DR3 970854821569494912 Gaia DR1 970854817272431104

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