THE USAGE OF UBVRI FILTERS AND SKY BRIGHTNESS MEASUREMENT (Study on 26 May 2021 Total Lunar Eclipse at ITERA Lampung Astronomical Observatory )

Abstract

On May 26, 2021, the ITERA Lampung Astronomical Observatory (OAIL) got the opportunity to watch the Total Lunar Eclipse (TLE). The observations had two goals: determining the most efficient filter for observing the Penumbral Lunar Eclipse (PLE) and determining the influence of TLE phenomena on sky brightness. The acquired picture data is analyzed using the photometric approach. Six sample points are utilized to calculate the magnitude of the PLE. According to the findings, the blue filter is the generally ideal filter for detecting PLE. Tycho crater had the greatest magnitude of -18.1 while mare Imbrium had the highest magnitude 100 The Usage of UBVRI...