Al-Hilal: Journal of Islamic Astronomy
Al-Hilal Journal is a scientific journal published in April and October per year by the Islamic Astronomy at the Faculty of Sharia and Law, Universitas Islam Negeri (UIN) Walisongo, Semarang colaboration with Asosisasi Dosen Falak Indonesia (ADFI). Articles published in this journal are the results of empirical research in Islamic Astronomy (such as qibla, salat times, Islamic Calendar, Eclipse and others), and its approaching on other area studies (mathematics, physics, astrophysics, social, politics, anthropology, ethnography and others). This journal has specifications as a medium of publication and communication of Islamic Astronomy ideas derived from theoretical and analytical studies, as well as research results in the field of both natural and social science. The editor hopes that writers, researchers and legal experts will contribute in this journal.
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<![CDATA[ARCHIPELAGIC CALENDAR IN THE JAVANESE AND BUGIS MANUSCRIPTS ]]>
<![CDATA[Hikmatul Adhiyah Syam]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.13437
<![CDATA[Manuscripts of the Javanese and Bugis calendars are products of the archipelago's culture. It is a fundamental issue with respect to astronomy as a science. This study analyzes the Bugis and Javanese calendars indicated in the manuscripts. Comparative descriptive analysis and literature research methods are both used in this study. According to the article, the Javanese and Bugis have manuscripts relating to the calendar as a way of life-based on natural phenomena. The Lontara Bilang and Lontara Kutika Ugi Sakke Rupa scripts belong to the Bugis people, whereas the Serat Mustaka Rancang and Serat Widya Pradhana manuscripts belong to the Javanese.]]>
<![CDATA[APPLICATION OF EFFECTIVE AZIMUTH DIFFERENT FORMULA IN DETERMINING THE QIBLA DIRECTION ]]>
<![CDATA[Auzi'ni Syukron Kamal Ahmad]]>;
<![CDATA[Muslich Shabir]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.12069
<![CDATA[The sun's shadow and the Qibla azimuth are two techniques for figuring out the Qibla direction. To obtain Qibla direction accuracy while applied to traditional instruments with low accuracy, such istiwa'ayn, the user's accuracy is required. Slamet Hambali's theory of a process angle was inspired by this issue. The effective angle disparity formula, which is based on Slamet Hambali's concept, is discussed in this article along with how it can be used to get effective azimuth variance. This article is based on numerically-based quantitative research using library data. The aim is to comprehend the concept of various effective azimuths and how they are used to identify the direction of the Qibla. This article comes to the conclusion that Slamet Hambali's formula for the effective azimuth difference tends to make use of the idea of processing angle by calculating the azimuth difference value with particular aiming hours, azimuth difference value, and processing angle to produce a shooting clock with a different azimuth valuation.Kata kunci : azimut, efektif, jam bidik ]]>
<![CDATA[CONVERGENCE OF QIBLA DIRECTION ACCURACY OF THE OLD AIR TIRIS GRAND MOSQUE KAMPA RIAU ]]>
<![CDATA[Novi Arisafitri]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.14324
<![CDATA[The community experiences both positive and negative consequences as a response of Qibla direction calibration, particularly in the ancient mosque, an ancestral heritage mosque whose authenticity must be preserved. One of them is the Air Tiris Great Mosque in Kampar, which must be preserved from the initial stages of growth because it is a tourist destination and an item of cultural heritage. This article aims to verify the calibration of the Qibla direction of the oldest mosque in Kampar and the techniques employed by earlier scholars in measuring their Qibla direction using field investigations and data sources from observations and interviews. This article concludes that the Qibla direction is accurate and correct, the Air Tiris Grand Mosque was established in 1901, and that it has never undergone renovation. When the global Qibla direction was wrapped in religious intuition, the cleric at the time, Datuk Engku Mudo Songkal, used the sun's shadow to bring religious intuition and scientific truth together.]]>
<![CDATA[DEVELOPMENT OF ASTRO TIME ISLAMIC PRAYER SCHEDULE APPLICATION AND ALTITUDE CORRECTION TEST ]]>
<![CDATA[Muhammad Jamaluddin]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.12330
<![CDATA[The tool for calculating prayer times continues to develop. Likewise, there are several different formulas for calculating prayer times, both with the addition of altitude correction and without altitude correction. This article uses the prayer time formula which takes into account altitude corrections into an application called Islamic Astro Time which uses Matlab programming with solar data from the astronomical algorithms formula by Jean Meeus. This article is an experimental qualitative with descriptive analysis. This article finds that the calculation of prayer times in the Islamic Astro Time application using varying altitude levels results in different times. The difference in results starts from 2 minutes at a building height of 250 meters to more than 2 minutes depending on the level of height. The higher the position of the person praying, the greater the difference between the start of the prayer and the lower place. So that every Muslim who wants to pray must pay attention to the altitude correction factor with the sun's position approaching the horizon, namely the time of dawn, late dawn (ṭulū'), maghrib, and evening prayers.]]>
<![CDATA[PROBLEMS OF PRAYER TIME AND QIBLA DIRECTION IN OUTER SPACE ]]>
<![CDATA[Muhamad Adib Abdul Haq]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.13251
<![CDATA[The sun's shadow and addressing the Qibla, measured by several available methods, can be used to determine the times of prayer for Muslims who are on Earth's surface. The question of how to identify the prayer times and the direction of the Qibla emerges when a Muslim is in space. The aim of this paper is to identify the Qibla direction and prayer times in outer space. This qualitative article is based on a literature study. According to some of the findings of the scholars' ijtihād, Muslim astronauts could fly to Cape Canaveral depending on where they last left the earth, or they could follow the Greenwich Time or the Mecca prayer timetable. There are four alternatives for Qibla direction according to A Guideline for Performing Prayer at the International Space Station (ISS): addressing the earth, facing the projection of the Kaaba in the sky, approaching the earth, or facing everywhere.]]>
<![CDATA[ANALYSIS OF SPHERICAL ASTRONOMY ALGORITHMS FOR PREDICTING THE SOLAR ECLIPSE BY W.M. SMART ]]>
<![CDATA[Fiki Nuafi Qurrota Aini]]>;
<![CDATA[Ahmad Luqman Hakim]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.13293
<![CDATA[A solar eclipse is an unusual natural occurrence. Muslims used the phenomenon of a solar eclipse as the season for prayer, which was only carried out during a solar eclipse from early in the phenomenon until the end. Although there is no statistically significant difference in estimating a solar eclipse, as the seasons change, a solar eclipse becomes increasingly important. Lots of alternatives can be used as a reference in the determination of a solar eclipse. Among the alternatives commonly used is the calculation of spherical astronomy. Despite its complexity, many people still use it as the foundation for calculations based on solar eclipse Pythagoras as well as the determination of the celestial coordinate system. ]]>
<![CDATA[APPLICATION OF EFFECTIVE AZIMUTH DIFFERENT FORMULA IN DETERMINING THE QIBLA DIRECTION ]]>
<![CDATA[Ahmad, Auzi'ni Syukron Kamal]]>;
<![CDATA[Shabir, Muslich]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.12069
<![CDATA[The sun's shadow and the Qibla azimuth are two techniques for figuring out the Qibla direction. To obtain Qibla direction accuracy while applied to traditional instruments with low accuracy, such istiwa'ayn, the user's accuracy is required. Slamet Hambali's theory of a process angle was inspired by this issue. The effective angle disparity formula, which is based on Slamet Hambali's concept, is discussed in this article along with how it can be used to get effective azimuth variance. This article is based on numerically-based quantitative research using library data. The aim is to comprehend the concept of various effective azimuths and how they are used to identify the direction of the Qibla. This article comes to the conclusion that Slamet Hambali's formula for the effective azimuth difference tends to make use of the idea of processing angle by calculating the azimuth difference value with particular aiming hours, azimuth difference value, and processing angle to produce a shooting clock with a different azimuth valuation.Kata kunci : azimut, efektif, jam bidik ]]>
<![CDATA[DEVELOPMENT OF ASTRO TIME ISLAMIC PRAYER SCHEDULE APPLICATION AND ALTITUDE CORRECTION TEST ]]>
<![CDATA[Jamaluddin, Muhammad]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.12330
<![CDATA[The tool for calculating prayer times continues to develop. Likewise, there are several different formulas for calculating prayer times, both with the addition of altitude correction and without altitude correction. This article uses the prayer time formula which takes into account altitude corrections into an application called Islamic Astro Time which uses Matlab programming with solar data from the astronomical algorithms formula by Jean Meeus. This article is an experimental qualitative with descriptive analysis. This article finds that the calculation of prayer times in the Islamic Astro Time application using varying altitude levels results in different times. The difference in results starts from 2 minutes at a building height of 250 meters to more than 2 minutes depending on the level of height. The higher the position of the person praying, the greater the difference between the start of the prayer and the lower place. So that every Muslim who wants to pray must pay attention to the altitude correction factor with the sun's position approaching the horizon, namely the time of dawn, late dawn (ṭulū'), maghrib, and evening prayers.]]>
<![CDATA[PROBLEMS OF PRAYER TIME AND QIBLA DIRECTION IN OUTER SPACE ]]>
<![CDATA[Abdul Haq, Muhamad Adib]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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Original Source
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DOI: 10.21580/al-hilal.2022.4.2.13251
<![CDATA[The sun's shadow and addressing the Qibla, measured by several available methods, can be used to determine the times of prayer for Muslims who are on Earth's surface. The question of how to identify the prayer times and the direction of the Qibla emerges when a Muslim is in space. The aim of this paper is to identify the Qibla direction and prayer times in outer space. This qualitative article is based on a literature study. According to some of the findings of the scholars' ijtihād, Muslim astronauts could fly to Cape Canaveral depending on where they last left the earth, or they could follow the Greenwich Time or the Mecca prayer timetable. There are four alternatives for Qibla direction according to A Guideline for Performing Prayer at the International Space Station (ISS): addressing the earth, facing the projection of the Kaaba in the sky, approaching the earth, or facing everywhere.]]>
<![CDATA[ANALYSIS OF SPHERICAL ASTRONOMY ALGORITHMS FOR PREDICTING THE SOLAR ECLIPSE BY W.M. SMART ]]>
<![CDATA[Qurrota Aini, Fiki Nuafi]]>;
<![CDATA[Hakim, Ahmad Luqman]]>
<![CDATA[ Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022) ]]>
Publisher : <![CDATA[Fakultas Syari'ah dan Hukum UIN Walisongo ]]>
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DOI: 10.21580/al-hilal.2022.4.2.13293
<![CDATA[A solar eclipse is an unusual natural occurrence. Muslims used the phenomenon of a solar eclipse as the season for prayer, which was only carried out during a solar eclipse from early in the phenomenon until the end. Although there is no statistically significant difference in estimating a solar eclipse, as the seasons change, a solar eclipse becomes increasingly important. Lots of alternatives can be used as a reference in the determination of a solar eclipse. Among the alternatives commonly used is the calculation of spherical astronomy. Despite its complexity, many people still use it as the foundation for calculations based on solar eclipse Pythagoras as well as the determination of the celestial coordinate system. ]]>
