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THE URGENCY OF MAGNETIC DECLINATION IN QIBLA DIRECTION MEASUREMENT USING A COMPASS IN THE IBU KOTA NUSANTARA (IKN) AREA Alawiya, Balkis Sifara; Fadhel, Muhammad Said
Al Ushuliy: Jurnal Mahasiswa Syariah dan Hukum Vol 3, No 2 (2024)
Publisher : UIN Mahmud Yunus Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31958/alushuliy.v3i2.13773

Abstract

This study analyzes the urgency of correcting magnetic declination in determining the accurate direction of the Qibla, particularly for mosque construction in the area of Ibu Kota Nusantara (IKN), Indonesia. Using a literature review and quantitative approach, magnetic declination data from 1590 to 2024 was collected using the NOAA magnetic declination calculator with the IGRF-13 model at the IKN coordinates. The data was analyzed to identify temporal and spatial variations and then visualized using LabPlot software. The results show significant changes in magnetic declination that affect the accuracy of the Qibla direction if not corrected. The total percentage of magnetic declination values beyond the tolerance limit or iḥtiyāṭ al-qiblah (0.4º) is 77.18%. This study emphasizes the importance of using reliable declination calculators from credible institutions such as NOAA and visualization tools to ensure that the Qibla direction aligns with technical and Sharia standards, making it a guide for urban planning in IKN, especially in determining the direction of public buildings such as mosques, schools, and government offices.
OBSERVATION OF DAWN SPECTRAL SHIFTS: TRANSITION FROM FAJAR KAẐIB TO FAJAR ṢADIQ IN DETERMINING THE BEGINNING OF FAJR PRAYER TIME AT THE UIN WALISONGO OBSERVATORY SEMARANG Fadhel, Muhammad Said; Alawiya, Balkis Sifara
JISRAH: Jurnal Integrasi Ilmu Syariah Vol 5, No 2 (2024)
Publisher : Institut Agama Islam Negeri Batusangkar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31958/jisrah.v5i2.13701

Abstract

This research analyzes the color change from false dawn (fajar kaẑib) to true dawn (fajar ṣadiq) in determining the beginning of the Fajr prayer time at the UIN Walisongo Observatory in Semarang. A camera, adjusted to match visual perception, was used to record RGB intensity at regular intervals. Results indicate a significant increase in the red spectrum as true dawn appears, distinct from false dawn. Comparative analysis of RGB ratios, moving averages, and linear fitting identified a pattern of change and an inflection point at a solar altitude of -19.81° or 04:00 WIB, which reliably detects the transition between the two dawns. This method offers a more precise alternative for determining the Fajr prayer time
Relevansi Penentuan Arah Kiblat dengan Data Rasi Bintang dalam Kitab Suwar Al-Kawakib Alawiya, Balkis Sifara; Ahmad, Izzuddin
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 5 No. 2 (2023): Desember 2023
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v5i2.7647

Abstract

The Fixed Star Book, also known as Suwar Al-Kawakib, is one of the most significant pieces of medieval Arabic astronomy literature. Around 964 AD, Persian astronomer Abdul-Rahman Al-Sufi wrote it. Ptolemy's Almagest is referred to in Al-Sufi's work, which incorporates a thorough star list and definite star diagrams for every one of the 48 old style heavenly bodies. This article discusses how to use data from the constellations in the Suwar Al-Kawakib, or book of fixed stars, to determine the direction of Qibla. In this research article, the author tries to connect the information in the fixed star book about the direction of the Qibla and the constellations. According to the book, it makes sense that the Little Bear heavenly body (Ursa Minor) is the group of stars closest to the north pole. Al Farqadain and al-Juday are Arab names for the two brightest stars in this constellation. The position of Al-Juday, which is the brightest star at the tail's end, is used to find the Qibla, or the direction of Mecca. This investigation aims to determine whether one of the stars mentioned in Suwar Al-Kawakib can be measured to determine the Qibla's direction, however in this time the relevance of north star or polaris in determinin the direction of Qobla is considered a form of folk astronomy with sufficient precision the tolerance of Qibla deviation.