Proc. IAU volume 13, issue S336, P287-288 2017 DOI: 10.1017/s1743921318000297 View full text
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Evgeni Semkov, Stoyanka Peneva, Sunay Ibryamov, Asen Mutafov

Abstract: We present results from long-term optical photometric observations of the Pre-Main Sequence (PMS) stars, located in the star formation region around the bright nebula NGC 7129. Using the long-term light curves and spectroscopic data, we tried to classify the PMS objects in the field and to define the reasons for the observed brightness variations. Our main goal is to explore the known PMS stars and discover new, young, variable stars. The new variable PMS star 2MASS J21403576+6635000 exhibits unusual brightne…

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