Light Curve and Period Change Behavior of a Binary Star V392 Orionis

Article Sidebar

PDF
Published: Sep 14, 2025
DOI: https://doi.org/10.55164/ajstr.v28i5.259078
Keywords:
V392 Ori Period Change O-C Diagram

Main Article Content

Wiraporn Maithong
Faculty of Science and Technology, Chiang Mai Rajabhat University, Chiang Mai, 50300, Thailand
Torik Hengpiya
National Astronomical Research Institute of Thailand (Public Organization), Songkhla, 90000, Thailand
Chaloemchon Wannathong
Faculty of Science Technology and Agriculture, Yala Rajabhat University, Yala, 95000, Thailand

Abstract

This study investigates the period change of the eclipsing binary system V392 Orionis (V392 Ori), which is classified as an Algol-type binary star. The research utilized data from the TESS Eclipsing Binary Catalog obtained via the Transiting Exoplanet Survey Satellite (TESS). Light curves were generated through photometric analysis to determine the times of minimum light. The historical and current observational data were used to construct the O–C diagram. The O–C diagram derived from PE and CCD observations exhibits a downward parabolic trend, indicating a decreasing orbital period at a rate of 5.76×10-3 seconds per year.

Article Details

Issue
Vol. 28 No. 5 (2025): September - October
Section
Research Articles
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

References

Maithong, W.; Tajumpa, A. Period Change and Third Body Study of a Binary System V781 Tauri. Udon Thani Rajabhat University Journal of Science and Technology 2019, 7(2), 179–187. (in Thai)

Soonthornthum, B. Astrophysics.. Chiang Mai University. 2007. (In Thai)

SIMBAD Astronomical Database - CDS (Strasbourg). (Accessed 2024, September 22). http://simbad.u-strasbg.fr/simbad/

Liu, X.; Tan, H.-S.; Leung, K. UBV observations of short-period close binary V392 Orionis. Astrophysics and Space Science 1988, 141(1), 21–25. https://doi.org/10.1007/BF00641912

Hong, K.; Lee, J. W.; Koo, J.; Park, J.; Kim, S.; Rittipruk, P.; Kanjanasakul, C.; Han, C. Time-series Spectroscopy of the Oscillating Eclipsing Algol System V392 Orionis. The Astronomical Journal 2019, 157, 1–8. https://doi.org/10.3847/1538-3881/aaf39f

TESS Eclipsing Binary Catalog. (Accessed 2024, September 22). http://tessebs.villanova.edu/

Ricker, G. R. et al. Transiting Exoplanet Survey Satellite. Journal of Astronomical Telescopes, Instruments, and Systems 2015, 1(1), 014003-1–10.

Bob Nelson’s Database of Eclipsing Binary O-C Files, AAVSO. (Accessed 2024, October 22). https://www.aavso.org/bob-nelsons-o-c-files

Qian, S. Orbital Period Changes of Contact Binary Systems: Direct Evidence for Thermal Relaxation Oscillation Theory. Mon. Not. R. Astron. Soc. 2001, 328, 914–924. https://doi.org/10.1046/j.1365-8711.2001.04921.x

Lucy, L. B.; Wilson, R. E. Observational Tests of Theories of Contact Binaries. The Astrophysical Journal 1979, 231, 502–513. https://doi.org/10.1086/157212