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All Journal HISABUNA: Jurnal Ilmu Falak
Syarif, Rasyawan
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Religion Astronomy Earth & Planetary Sciences Physics Social Sciences

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Pengembangan Instrumen Qamariyah Syamsiyah Moon Phase Detector (QaSyM PD) dengan Penanggalan Sepanjang Masa: Indonesia Annisa Nurfadilah; Syarif, Rasyawan; Fatmawati
HISABUNA: Jurnal Ilmu Falak Vol 5 No 2 (2024): Juni 2024
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/hisabuna.v5i2.46370

Abstract

This article discusses the Development of Qamariyah Shamsiyah Moon Phase Detector (QaSyM PD) Instrument with All-Time Dating. The problem formulations in this thesis are 1) How is the QaSyM PD Instrument in determining the phases of the moon in Qamariyah and Shamsiyah, 2) How the Development of QaSyM PD Instrument can be valid for all time. This study uses Research and Development (RnD) research which means development research in this case the instrument by adopting the 4 D model namely Define, Design, Developing, and Dissemination. The results of this study indicate that the QaSyM PD Instrument with innovations made by researchers in the development of its dating can be valid for all time. With several stages that change the layers of the instrument starting from the first layer of the Shamsiyah calendar (Gregorian Calendar), the second layer of the Qamariyah Calendar (Hijriyah Calendar) and the third layer of moonrise and sunset times. The development of the QaSyM PD Instrument was carried out with validation and testing stages carried out through supporting data and applications. So as to produce an instrument that is valid for all time. The implication of this research is that this instrument is expected to make an educational contribution to the community, especially those who are unfamiliar with Falak Science. This research also has implications for the development of technology and science in the field of Falak Science and astronomy which can encourage further research to understand the motion of the moon with a simpler system.
Pengaruh Variabilitas Gerak Semu Matahari Terhadap Perubahan Waktu Salat Diberbagai Garis Lintang Perspektif Ilmu Falak Sahrani, Nurul; Syarif, Rasyawan; Rahmatiah HL
HISABUNA: Jurnal Ilmu Falak Vol 5 No 1 (2024): Maret 2024
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/hisabuna.v5i1.48051

Abstract

“The sun is in apparent or phantom motion but it is the earth that moves around the sun. Prayer times are influenced by the length of day and night in each latitude or region. This study uses library research using qualitative research with descriptive analysis. Using Shar'i and astronomical aproaches. The resuls of this study indicate that the sun performs pseudo-motion. The apparent motion of the sun causes the rotation and revolution of the earth, so that the sun is north and south of the earth. The sun is north of the equator (around March 21 - September 23) and south of the equator (around September 24 - March 20). This causes the length of day and night and differences in prayer times in each region or latitude. For example, in Gowa the duhur prayer time is at 12:05, while in Manado it is at 12:23. But in December, the noon prayer time in Gowa is at 12:02, while in Manado it is at 11:50. Apart from the influence of the apparent motion of the sun, the latitude of the place also affects the change in prayer time. In falak science, the determination of prayer times is significantly studied in the form of formulas using data on the latitude of the place, solar declination, longitude, mean time, and sun height”. Keywords: Sun's Apparent Motion, Prayer Time, Latitude
Co-Authors Annisa Nurfadilah Fatmawati Fatmawati Rahmatiah HL Sahrani, Nurul