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All Journal Journal of Mathematical and Fundamental Sciences
Anton Timur Jaelani
Astronomy Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
Astronomy Chemistry Earth & Planetary Sciences Mathematics Physics

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Variability Survey of Southern Open Clusters NGC 6134, NGC 6416, Collinder 394, and Alessi 10 Denny Mandey; Dhimaz Gilang Ramadhan; Muhammad Yusuf; Teduh Perhati; Sahlan Ramadhan; Theofilus Hobba Pramono; Chornelis J’Be Anin; Premana Wardayanti Premadi; Anton Timur Jaelani; Agus Triono Puri Jatmiko; Mochamad Ikbal Arifyanto
Journal of Mathematical and Fundamental Sciences Vol. 57 No. 3 (2026)
Publisher : Directorate for Research and Innovation (DRI) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2026.57.3.1

Abstract

We present the results of a brightness variability survey of four southern open clusters, namely NGC 6134, NGC 6416, Collinder 394, and Alessi 10, which were observed using three telescopes following a time series photometric scheme during the dry season in 2022. The purpose of these observations was to detect variability events and their types of variability in star members of these four clusters. Data analysis was performed using a differential photometry method to produce light curves. Several new variable star candidates were discovered in the observed clusters. More observational data are needed to examine the consistency of the variabilities, estimate relevant periodicity, and determine the type of variable star.
Co-Authors Agus Triono Puri Jatmiko Chornelis J’Be Anin Denny Mandey Dhimaz Gilang Ramadhan Mochamad Ikbal Arifyanto Muhammad Yusuf Premana Wardayanti Premadi Sahlan Ramadhan Teduh Perhati Theofilus Hobba Pramono