Visualization Of The Crescent Moon's Position Using The Sky Guide Application In Determining The Beginning Of The Lunar Month
(1) prosedur simulasi hilal menggunakan Sky Guide berbasis teknologi augmented reality; (2) perbandingan akurasi hasil simulasi dengan metode hisab falak konvensional menggunakan data ephemeris; dan (3) analisis fungsi Sky Guide sebagai media edukasi falak beserta keterbatasannya dalam penetapan resmi awal bulan Hijriah
Keywords:
Sky Guide, Hilal, Digital Islamic Astronomy, Hisab-Rukyat, Qamariah MonthsAbstract
This study examines the use of the Sky Guide application as a modern approach to determining the beginning of the Qamariah lunar months in the digital era. The research focuses on: (1) the hilal simulation procedure using Sky Guide based on augmented reality technology; (2) the comparison of the simulation results’ accuracy with traditional hisab calculations using ephemeris data; and (3) the evaluation of Sky Guide as an educational tool along with its limitations for official lunar-month determinations. This study employs a descriptive-comparative library research method. Data were gathered from classical and modern falak literature, scientific articles, and field simulations conducted in Makassar on 27 February 2025 (29 Sha’ban 1446 H) and 29 March 2025 (29 Ramadan 1446 H). The analysis involves astronomical parameter comparisons between Sky Guide, Stellarium, and Accurate Times.The findings indicate that Sky Guide provides real-time hilal visualizations but lacks numerical data such as crescent altitude and elongation. Minor discrepancies were observed when compared to conventional hisab methods. Therefore, Sky Guide is more suitable as an educational medium for falak literacy rather than as a basis for official Qamariah month.
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