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Ahmad Izzuddin
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Gedung Dekanat Fakultas Syariah dan Hukum, UIN Walisongo Semarang Jl. Prof. Dr. Hamka, Tambakaji, Kec. Ngaliyan, Kota Semarang, Jawa Tengah 50185
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Al-Hilal: Journal of Islamic Astronomy
Published by Universitas Islam Negeri Walisongo Semarang
ISSN : 27751236     EISSN : 27752119     DOI : https://doi.org/10.21580/al-hilal
Core Subject : Religion, Science, Social,
Religion Astronomy Earth & Planetary Sciences Physics Social Sciences
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.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 117 Documents
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DEVELOPMENT OF ASTRO TIME ISLAMIC PRAYER SCHEDULE APPLICATION AND ALTITUDE CORRECTION TEST Jamaluddin, Muhammad
Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022)
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2022.4.2.12330

Abstract

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.
PROBLEMS OF PRAYER TIME AND QIBLA DIRECTION IN OUTER SPACE Abdul Haq, Muhamad Adib
Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022)
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2022.4.2.13251

Abstract

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.
ANALYSIS OF SPHERICAL ASTRONOMY ALGORITHMS FOR PREDICTING THE SOLAR ECLIPSE BY W.M. SMART Qurrota Aini, Fiki Nuafi; Hakim, Ahmad Luqman
Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022)
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2022.4.2.13293

Abstract

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. 
ARCHIPELAGIC CALENDAR IN THE JAVANESE AND BUGIS MANUSCRIPTS Syam, Hikmatul Adhiyah
Al-Hilal: Journal of Islamic Astronomy Vol 4, No 2 (2022)
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2022.4.2.13437

Abstract

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.
THE UTILIZATION OF AUGMENTED REALITY TECHNOLOGY IN DETERMINING QIBLA DIRECTION (ANALYSIS OF MIQAT APPLICATIONS BY SAMER JOUDI) Muttaqin, Naufal Fazal
Al-Hilal: Journal of Islamic Astronomy Vol 5, No 1, 2023
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2023.5.1.13734

Abstract

Nowadays, around the world, there are numerous Qibla direction applications available on various websites and digital content providers. One of these is the Miqat application: Prayer Times, Qiblah, and Hilal Visibility, an augmented reality-based Android app for determining the direction of the Qibla. Samer Joudi, a geospatial technology specialist from the United Arab Emirates, released the Miqat app in 2015. As of November 20, 2022, more than 5,000,000 (five million) Android users had downloaded the Miqat app, giving it a rating of 4.6 out of 5. A 3D Qibla feature in the Miqat application uses augmented reality technology on the display to point users in the direction of the Kaaba. actual life.  The results of this study are that the calculation method used by the Miqat application is the Vincenty formula, which is quite accurate (7 minutes difference from the calculation of the Istiwa'aini Qibla direction) because the Vincenty formula has high accuracy in determining the Qibla direction based on the ellipsoid shape of the earth. Then, determining the Qibla direction using the 3D Qibla feature with augmented reality technology is categorized as less accurate according to Slamet Hambali's level of accuracy, but still within tolerance limits according to Thomas Djamaluddin's level of accuracy. The accuracy of the Qibla direction of the Miqat application differs from 0o to 1o from the Qibla direction measured by Istiwa'aini.
THE HISTORY OF THE BUGIS LONTARA CALENDAR OF SOUTH SULAWESI Lesmana, Perdi
Al-Hilal: Journal of Islamic Astronomy Vol 5, No 1, 2023
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2023.5.1.13758

Abstract

Basically a calendar or calendar is the accumulation and distribution of time with certain time units based on certain events that are used by people around the world to be used as a benchmark and guide or marker of time in their life journey. The Bugis calendar is a calendar that belongs to the Bugis tribe in South Sulawesi and is a cultural heritage that has been passed down from generation to generation and is also a unique calendar because this calendar existed before Islam entered the South Sulawesi region. The purpose of this study is to add to and expand the kazana on the study of astronomy, especially the Bugis people of South Sulawesi and it is hoped that it will also be able to become a reference for information regarding the Lontara Bugis calendar so that this study uses a literature research method that describes systematically, normatively and accurately the objects studied. become the main problem. Currently, the use of the Lontara Bugis calendar has adopted the Hijri calendar, but does not necessarily leave the culture or beliefs of our ancestors regarding the Lontara Bugis calendar.
COMPARATIVE STUDY OF FAZILET CALENDAR AND MABIMS CRITERIA ON DETERMINING HIJRI CALENDAR Irfan, Irfan
Al-Hilal: Journal of Islamic Astronomy Vol 5, No 1, 2023
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2023.5.1.13760

Abstract

A calendar is an organizing system for calculating time over a certain period. Some calendar systems refer to an astronomical cycle, following a fixed rule. The main problem in this study is how the method and implementation of determining the beginning of the lunar month in the Ministry of Religion of the Republic of Indonesia and the Fazilet Calendar, the purpose of this study is to add to the treasury of knowledge about the Fazilet Calendar calendar method originating from the Ottoman Empire so that library research methods are used to describe various sources that are there is. The results showed that there was a difference of three to four months each year in entering the first month using the old and new MABIMS criteria and the Fazilet Calendar criteria. Differences in the beginning of the lunar month also occur because of the location of the hilal observation markaz, the Fazilet Calendar with the Ittihadul Mathali concept (imposing a global matla) while the Ministry of Religion of the Republic of Indonesia with the wilayatul hukmi matlak concept.
TIME CALCULATION METHODS OF THE BUGIS MAKASSAR TRIBE BASED ON THE KU TIKA BOOK Sartika, Sartika
Al-Hilal: Journal of Islamic Astronomy Vol 5, No 1, 2023
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2023.5.1.13940

Abstract

The Bugis Makassar Tribe Society is one of the tribes in Indonesia that has historical traces in the calendar system. The method of calculating people's time in ancient times was contained in the Ku Tika manuscript of the Bone Tribe which until now is no longer used and is only used as a historical source. Many of today's generations do not know and are no longer able to be read by various backgrounds in society in general. This is because the language used in the text is not the same as today's language, such as the Lontara Bugis language. Therefore, a study is needed regarding the contents of the manuscript so that it can be known by all audiences. This research is included in library research, namely research by collecting data and information from books, journals, and other document records. Based on the results of the research, it can be seen that the Ku Tika manuscript of the Bone tribe explains the meaning of hours, days and months. The time calculation method used is called Pakkita Esso which means the system of five times in one day.
THE TOLAKI CALENDAR SYSTEM FOR DETERMINING GOOD AND BAD DAYS Ridhayanti, Nurul Resky
Al-Hilal: Journal of Islamic Astronomy Vol 5, No 1, 2023
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2023.5.1.13975

Abstract

The Tolaki people continue to base their way of life on traditions like the Tolaki calendar for identifying good and bad days. The Tolaki tribe employs a tool that is often employed as a weather forecast or as a guide for the community to carry out certain actions to ascertain this. The formulation of the issue is brought up by the author, who asks questions like: How does the Tolaki calendar system work?, How are the good and bad days for the Tolaki people determined?, and How is astronomical research related to the Tolaki calendar system?. The Tolaki Culture Book, which is processed with journals linked to the Tolaki Tribal Calendar System, is used in this research technique, which is a library method. It is studied descriptively and presented qualitatively. These are the study's findings: The moon's position in the night sky is used as the basis for the Tolaki calendar. The meanings of the names of the days in the month are used by the Tolaki people to identify good and bad days, and they use Naga Hari, Kutika, and Bilangari to ascertain the precise day and hour. The Tolaki calendar is identical to the Hijri calendar in astronomy since it uses a lunar calendar that keeps track of the moon's orbit. The Tolaki community uses the concept of good days and bad days as a guide for carrying out activities, but it cannot be utilized as a model for how to do Islamic devotion.
QIBLA DIRECTION OF SHEIKH ARSYAD AL-BANJARI IN THE MAS'ĀLATUL QIBLA FĪ BATAWI’S BOOK Nugroho, Adi
Al-Hilal: Journal of Islamic Astronomy Vol 5, No 1, 2023
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/al-hilal.2023.5.1.14038

Abstract

Facing the Qiblah as one of the legal requirements in carrying out the prayer requires us to determine where the Ka'bar building is located. Such things are not an obstacle for those who live around Mecca. In Indonesia, which is far from the physical building of the Ka’bah, the Qibla direction has often been a problem in society from time to time. Syekh Arsyad al-Banjari in his book Mas'ālatul Qibla fī Batawi provides a simple concept of how to face the Qibla for people who are far from the Kaaba, he also plays a role in straightening the Qibla direction of mosques in Betawi. This research uses a type of library research (Library Research). The data analysis process in this study uses descriptive analysis. Based on the research conducted by the author on the book, according to Sheikh Arsyad al-Banjari the obligation to face the Qibla with the ainul kaaba only applies to people who are in Mecca, so that areas outside Mecca may use a strong zhan. Furthermore, he was also of the opinion that it was advisable to change the Qibla direction of the mosque which was established by the wali if proven wrong. He practiced this by changing several mosques in Indonesia.

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