Access to Astronomical Catalogues

← Click to display the menu
J/other/NewA/49.28    OQ Dra V light curve                   (Heidarnia+, 2016)

The first photometric study of W UMa eclipsing binary OQ Dra. Heidarnia R., Ebadi H., Rooydargard H. <New Astron., 49, 28-31 (2016)> =2016NewA...49...28H (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Photometry Keywords: data reduction techniques - photometry - eclipsing binary - observation Abstract: The present study is an analysis of V-band CCD observations of new W UMa contact binary OQ Dra. To carry out the analysis, Primary and secondary minimum were obtained and new epoch was calculated. The computed period of system was 0.33967 day. Light curve analysis was performed using Binary Maker 3 and PHOEBE that uses the latest Wilson-Devinney code. We obtained photometric mass ratio of qptm=0.55. O'Connell effect also was seen in the fitted model. Finally, the best model was achieved by introducing 2 spots on each component. Description: The photometric observations were performed over 5 nights between 21 June 2015 and 14 July 2015 at RIAAM observatory (research institute for astronomy and astrophysics of maragha). Objects: ------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------ 11 49 25.88 +72 34 01.4 OQ Dra = V* OQ Dra ------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file lcurve.dat 25 1671 OQ Dra light curve
Byte-by-byte Description of file: lcurve.dat
Bytes Format Units Label Explanations
1- 17 F17.9 d HJD Heliocentric Julian date 19- 25 F7.4 mag Vmag Johnson V magnitude
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Dec-2016
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service