Pengukuran periode revolusi planet venus di lingkungan forum komunikasi astronom amatir lintas Jawa Timur (FOKALIS JATIM)
Abstract
The development of astronomy in Indonesia could not have been disconnected from the activities of amateur astronomy communities. These communities served as platforms for the exchange of knowledge and information among individuals who shared a passion for astronomy. In East Java, there were more than 29 astronomy communities distributed across various geographical areas, including universities and schools, complemented by the presence of overarching organizations that served as communication forums for each community. The Forum Komunikasi Astronom Amatir Lintas Jawa Timur (FOKALIS JATIM) was an organization that facilitated the active involvement of amateur astronomy communities and practitioners. The method employed for measuring the period of revolution of the planet Venus served as an example of research activities undertaken by one of the members of FOKALIS JATIM. Data acquisition involving the imaging of Venus's phases over a two-month interval was used as a means to measure the period of Venus's revolution. The findings underscored the significance of the active engagement of amateur astronomy communities and practitioners as a means to enhance public understanding of astronomy.
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