Proceeding International Seminar of Islamic Studies
INSIS 5 (March 2023)

STUDY OF HILAL’S CONTRAST USING INFRARED FILTER IN DAYLIGHT HILAL OBSERVATION

Firdaus, Muhammad Dimas (Unknown)
Rakhmadi, Arwin Juli (Unknown)
Hidayat, Muhammad (Unknown)
Putraga, Hariyadi (Unknown)



Article Info

Publish Date
23 Mar 2023

Abstract

Hilal observation has already undergone a very significant development of techniques. From daytime observations, up to the uses of various instruments that can support the success of observations. One of the routine activities carried out by the Falak Science Observatory of Muhammadiyah University of North Sumatra is daytime hilal observation.  The hilal observation conducted by OIF UMSU uses an infrared filter instrument that can transmit light at infrared wavelengths and filter light at other wavelengths. This research tries to compare the contrast of daylight hilal images taken using filters and not using filters.The results obtained from the experiments carried out resulted in a contrast value using an infrared filter is 129% using Weber contrast analysis, and 4% using Michelson contrast analysis.

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Journal Info

Abbrev

insis

Publisher

Subject

Religion Arts Astronomy Economics, Econometrics & Finance Law, Crime, Criminology & Criminal Justice Mathematics Physics Other

Description

Proceeding International Seminar of Islamic Studies, published by the Faculty of Islamic Religion, University of Muhammadiyah Sumatera Utara (UMSU), Medan, Indonesia, which includes articles on the scientific research field of Islamic studies and Islamic education, Islamic law, and Islamic ...