IMPROVED EPHEMERIS OF POORLY STUDIED ECLIPSING BINARY GSC 3950-00707 = 2MASS J20355082+5242136

S. V. Savastru, V. I. Marsakova, K. D. Andrych, P. Dubovsky

Анотація


We made our CCD-observations of GSC 3950-00707 by using the telescope Celestron-14 of Vihorlat  Observatory  and  Astronomical  Observatory  on  Kolonica Saddle. The moments of minima were calculated by using  the  symmetrical  polynomial  fit.  We  also  analyzed the  observations  from  automated  surveys  ASAS-SN  and found  3  mean  minima  by  using  trigonometrical  polynomial  fit.  The  analysis  of  our  observations  and  data  from the surveys allows to conclude that it is the W UMa-type variable and its published period value is not accurate. We analyzed the O-C curve and corrected the elements. 


Ключові слова


eclipsing variable stars; W UMa – type; individual: GSC 3950-00707

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Посилання


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DOI: https://doi.org/10.18524/1810-4215.2017.30.115819

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