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Pramono, Theofilus Hobba
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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 Mandey, Denny; Ramadhan, Dhimaz Gilang; Yusuf, Muhammad; Perhati, Teduh; Ramadhan, Sahlan; Pramono, Theofilus Hobba; Anin, Chornelis J’Be; Premadi, Premana Wardayanti; Jaelani, Anton Timur; Jatmiko, Agus Triono Puri; Arifyanto, Mochamad Ikbal
Journal of Mathematical and Fundamental Sciences Vol. 57 No. 3 (2026): (In Progress)
Publisher : Directorate for Research and Community Services (LPPM) 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 Anin, Chornelis J’Be Arifyanto, Mochamad Ikbal Jaelani, Anton Timur Jatmiko, Agus Triono Puri Mandey, Denny Muhammad Yusuf Perhati, Teduh Premadi, Premana Wardayanti Ramadhan, Dhimaz Gilang Ramadhan, Sahlan