1999A&AS..136..139Y


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.16CEST17:55:12

1999A&AS..136..139Y - Astron. Astrophys., Suppl. Ser., 136, 139-143 (1999/April-1)

Photometric study of the late-type contact binary YY Eridani.

YANG Y. and LIU Q.

Abstract (from CDS):

Complete light curves in B and V bands for YY Eridani are presented in this paper. The light curves appear to have a marked asymmetry with Max. I brighter than Max. II. Using the latest version of the Wilson-Devinney light curve synthesis program, we have computed photometric solutions from the new light curves of YY Eri. The present solutions reveal that YY Eri is a W subtype contact binary. The asymmetries of the light curves are explained by the presence of dark spot on the primary or secondary component.

Abstract Copyright:

Journal keyword(s): star: individual: YY Eri - binary: eclipsing

VizieR on-line data: <Available at CDS (J/A+AS/136/139): table2.dat table3.dat>

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2907 0
2 V* YY Eri WU* 04 12 08.8494411846 -10 28 09.993813939   9.08 8.41   7.673 G3/K0+(F/G) 203 0
3 BD-11 831 * 04 13 28.0759587830 -11 02 11.058767005   10.567 9.819     G5 2 0
4 CCDM J04140-1209AB ** 04 14 02.070 -12 08 53.99   8.7 9.7     G5 3 0

    Equat.    Gal    SGal    Ecl

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2019.10.16-17:55:12

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