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Azimuthal Adaptation of the Moon-Based Raṣdu al-Qiblah Method Azmi, Muhammad Farid; Yaqin, 'Alamul
Al-Hilal: Journal of Islamic Astronomy Vol. 7 No. 1 (2025)
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2025.7.1.26050

Abstract

The Raṣdu al-Qiblah of the Moon is a night-time method for determining Qibla direction, but it can only be used once per night and not on specific dates due to natural limitations. This study introduces an innovation by applying azimuth difference values (+90°, +45°, -45°), allowing the method to be used multiple times a night. The research compares this enhanced method with theodolite measurements and the Raṣdu al-Qiblah of the Sun to test its accuracy. Using a qualitative approach with astronomical analysis, the study finds that this modified method results in a deviation between 0°9'32.96" and 0°57'17.43". These results fall within acceptable Qibla tolerance limits as defined by some experts, showing that this method is accurate and viable as an alternative for Qibla determination, especially at night.
Lunar Eclipse Types Comparison of al-Dur al-Anīq with Astronomical Algorithms (Implications for the Law of Lunar Eclipse Prayers) Yaqin, Alamul; Azmi, Muhammad Farid
Al-Marshad: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Vol 11, No 1 (2025): Al-Marshad
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jam.v11i1.23476

Abstract

This article aims to examine the accuracy of Astronomical Algorithms and al-Dur al-Anīq lunar eclipse type calculations and their impact on the ruling of lunar eclipse prayer. This qualitative research uses descriptive and comparative approaches. This article uses lunar eclipse data from 2011 – 2050 from Astronomical Algorithms, al-Dur al-Anīq, and NASA, and 3 additional partial lunar eclipses with small umbral magnitude. This study concludes that the determination of the type of lunar eclipse al-Dur al-Anīq is more accurate than Astronomical Algorithms because the average magnitude penumbra and umbra difference is almost the same as NASA and there is no difference type of lunar eclipse with NASA. Meanwhile, Astronomical Algorithms there are differences in types of Lunar Eclipses with NASA on lunar eclipses April 4, 2015 and July 18, 2027. The different types of lunar eclipses above, do not have an impact on the difference of lunar eclipse prayer law on lunar eclipse 2011-2050 because the two eclipses differ in No Lunar Eclipse with Penumbra and Partial with Total, but it happens on lunar eclipse 24 February 2157, 16 June 2421, 22 May 2627, because the different types of lunar eclipses occur between Penumbra and Partial.
PREDIKSI PERGERAKAN BAYANGAN BUMI SAAT TERJADI GERHANA BULAN MENGGUNAKAN EPHEMERIS HISAB RUKYAT Azmi, Muhammad Farid
ELFALAKY: Jurnal Ilmu Falak Vol 3 No 2 (2019): Desember
Publisher : UIN ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ifk.v3i2.14150

Abstract

AbstractIn this era, the prediction of lunar eclipse can be determined accurately with the astronomical data based algorithm. Usually, the prediction just compute the position and time of lunar eclipse without considered the movement of Earth shadow in the begginning to the end of eclipse. In this article the author explain how is the concept, algorithm, and analysis about the movement of Earth shadow on going lunar eclipse in certain local coordinate point, using the data from Ephemeris Hisab Rukyat.Keywords : Lunar Eclipse, Earth Shadow, Ephemeris Hisab Rukyat