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All Journal Al-Manahij: Jurnal Kajian Hukum Islam Al-Mizan (e-Journal) Islam Futura Jurnal Al-Ijtimaiyyah Jurnal Akuntansi dan Pembangunan (JAKTABANGUN) International Journal Ihya' 'Ulum al-Din Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Islamic Review : Jurnal Riset dan Kajian Keislaman Al-Qalam Jurisprudensi: Jurnal Ilmu Syariah, Perundang-undangan, Ekonomi Islam Manhaj: Jurnal Penelitian dan Pengabdian Masyarakat Ihsan: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Multidisiplin ELFALAKY: Jurnal Ilmu Falak Qisthosia Al-Hilal: Journal of Islamic Astronomy Al-Muamalat : Jurnal Ekonomi Syariah Al-Afaq: Jurnal Ilmu Falak dan Astronomi Al-Manahij : Jurnal Kajian Hukum Islam Syarah: Jurnal Hukum Islam dan Ekonomi Astroislamica: Journal of Islamic Astronomy Jurnal Malikussaleh Mengabdi Ameena Journal
Ismail Ismail
Universitas Islam Negeri Sultanah Nahrasiyah Lhokseumawe
Religion Aerospace Engineering Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Analisis Tingkat Kecerahan Langit Malam Terhadap Visibilitas Hilal Menggunakan Sky Quality Meter di Observatorium Malikussaleh IAIN Lhokseumawe Devina Kharida Alhan; Ruslandi Ruslandi; Ismail Ismail
Astroislamica: Journal of Islamic Astronomy Vol. 4 No. 1 (2025): Astroislamica: Journal of Islamic Astronomy (Juni)
Publisher : Islamic Astronomy Department, Sharia and Law Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47766/astroislamica.v4i1.3374

Abstract

In the dark of the night, the sky offers wonders like the crescent moon (hilal), which marks the beginning of the Islamic month. The hilal is often observed at the Malikussaleh Observatory, IAIN Lhokseumawe. This study uses a Sky Quality Meter (SQM) to measure the night sky brightness and how it affects hilal visibility. This field research employs a qualitative approach with a descriptive method. Primary data is obtained from direct observations using the SQM before and after sunset, while secondary data comes from relevant literature. The study finds that the night sky brightness at the observatory is Class 5 on the Bortle Scale, with an average of 19.80 MPSAS, categorized as Suburban Sky. The average brightness during hilal observation is -3.03397 v mag, while the hilal magnitude is -7.36 v mag. Therefore, the hilal can be observed if its magnitude is lower than the night sky brightness.
Penentuan Azimut Kiblat Masjid Kampus UIN Sultanah Nahrasiyah Lhokseumawe Menggunakan Rumus Segitiga Bola Berbasis Python Ravik Walhidayah; Ismail Ismail
Astroislamica: Journal of Islamic Astronomy Vol. 4 No. 2 (2025): Astroislamica: Journal of Islamic Astronomy (Desember)
Publisher : Islamic Astronomy Department, Sharia and Law Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47766/astroislamica.v4i2.6012

Abstract

Prayer time is a compulsory act of worship for Muslims, the validity of which depends on the fulfillment of specific conditions, one of which is facing the qibla, the direction of the Kaaba in the Masjid al-Haram, Makkah. Therefore, accurate determination of the qibla direction is a crucial aspect of performing prayer. Various methods have been used to determine the qibla direction, such as the annual Rashdul Qiblah phenomenon and calculations based on spherical trigonometry. The Rashdul Qiblah method is simple and accurate; however, its application is limited to specific times. In contrast, spherical trigonometry can be applied at any time and offers high precision, but the calculation process is relatively complex and prone to human error. This study aims to implement spherical trigonometry using the Python programming language to simplify the process of qibla direction determination and to evaluate its accuracy. The research employs a library research method with a computational simulation approach. The qibla direction is calculated by inputting the latitude and longitude coordinates of the location and the Kaaba into a Python program, and the results are then compared with field measurement data obtained using a theodolite. The results show that the Python-based qibla direction calculation produces an azimuth value with a difference of 32.62 arcseconds compared to the theodolite measurements. This difference is considered very small and does not practically affect the accuracy of the qibla direction. Therefore, the proposed method is proven to be accurate, efficient, and suitable as a modern alternative for determining the qibla direction.
Application of Artificial Intelligence in Automatic Crescent Moon Detection System Using Teachable Machine Model on Web Platform Walhidayah, Ravik; Ismail, Ismail
Al-Marshad: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Vol 11, No 2 (2025): Al-Marshad
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jam.v11i2.26166

Abstract

The issue of the visibility of the new moon (hilal) often becomes a recurring debate, especially during two major Islamic occasions: the determination of the beginning of Ramadan and the start of Dhu al-Hijjah for Eid al-Adha. In the practice of rukyat (moon sighting), claims of hilal sightings are frequently made without strong or objective evidence. Therefore, the utilization of artificial intelligence technology, particularly in the field of image classification, presents a potential solution to improve the accuracy and objectivity of the moon sighting process. This research employs an image classification model trained using the Teachable Machine platform. The trained model is then integrated into a websitesite developed using HTML, CSS, and Python, and hosted via the github service. Through this websitesite, rukyat observers can upload photos of the sky captured during moon observation. The AI model will then analyze the uploaded image to determine whether the hilal is visible or not. This system is expected to serve as a scientific and modern tool to support the moon sighting process.
Dinamika Regulasi Poligami: Studi Komparatif Mudawwanah Al-Usrah Maroko dan Kompilasi Hukum Islam Indonesia Muksal Mina; Saifuddin Dhuhri; Ismail
Ameena Journal Vol. 4 No. 2 (2026): Ameena Journal
Publisher : Yayasan Madinah Al-Aziziyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63732/aij.v4i2.237

Abstract

Dinamika hukum keluarga Islam di era modern melahirkan ragam interpretasi legislasi, khususnya terkait regulasi poligami. Maroko melalui Mudawwanah al-Usrah dan Indonesia dengan Kompilasi Hukum Islam (KHI) merepresentasikan dua kutub paradigma yang berbeda dalam merespons isu tersebut. Di lapangan, praktik poligami di Indonesia kerap diwarnai penyelundupan hukum yang meminggirkan hak perempuan, sehingga memunculkan urgensi untuk mengkaji efektivitas regulasinya secara komparatif. Penelitian ini bertujuan untuk mengomparasikan konstruksi hukum poligami antara Maroko dan Indonesia, menganalisis fondasi filosofis serta operasionalisasi maqāṣid as-syarī‘ah dalam regulasi tersebut, dan merumuskan relevansinya bagi pembaruan hukum keluarga di Indonesia. Penelitian ini merupakan penelitian hukum normatif dengan menggunakan pendekatan perbandingan hukum (comparative law) serta pendekatan analitis-filosofis berbasis maqāṣid as-syarī‘ah. Data dikumpulkan dari bahan hukum primer berupa Mudawwanah dan KHI, serta literatur sekunder yang relevan. Hasil penelitian menunjukkan bahwa Mudawwanah al-Usrah mengadopsi paradigma progresif-kontekstual dengan pendekatan preventif-represif, di mana negara secara mutlak melindungi hak perempuan melalui syarat finansial ketat, hak veto atau cerai bagi istri, dan ancaman pidana atas manipulasi prosedur. Sebaliknya, KHI berlandaskan paradigma konservatif dengan karakter administratif-prosedural, di mana hakim memiliki diskresi untuk mengesampingkan penolakan istri apabila alasan medis atau fungsional suami terpenuhi. Tinjauan maqāṣid menegaskan bahwa Maroko telah mengoperasionalkan kemaslahatan secara substantif, sedangkan Indonesia masih tertahan pada tataran normatif. Implikasinya, Indonesia perlu melakukan reformulasi regulasi poligami dengan mengoptimalkan otoritas yudisial dalam menilai keadilan substantif, mempertegas sanksi bagi perkawinan tak tercatat, dan menginternalisasikan nilai-nilai perlindungan hak perempuan secara komprehensif.
Edukasi Literasi Akurasi Digital Arah Kiblat bagi Masyarakat Gampong Paloh Bate Kota Lhokseumawe Hasna Tuddar Putri; Ismail Ismail; Laiyina Ukhti; Ravik Walhidayah; Najwa Aulia Putri
Jurnal Malikussaleh Mengabdi Vol. 5 No. 2 (2026): Jurnal Malikussaleh Mengabdi, April 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jmm.v5i2.26238

Abstract

Arah kiblat merupakan syarat sah dalam pelaksanaan ibadah salat, namun perhatian terhadap akurasinya di lingkungan rumah tempat tinggal masih sangat minim dibandingkan dengan bangunan masjid. Di Gampong Paloh Bate, Kota Lhokseumawe, ditemukan permasalahan serius berupa deviasi arah kiblat rumah warga yang berkisar antara 4° hingga 33° karena penggunaan metode tradisional yang kurang akurat. Selain itu, keterbatasan literasi digital masyarakat menjadi penghambat dalam pemanfaatan teknologi navigasi modern. Pengabdian ini bertujuan untuk meningkatkan literasi digital masyarakat melalui pendampingan teknis penentuan arah kiblat yang presisi. Metode yang digunakan adalah Participatory Action Research (PAR) yang melibatkan tahapan sosialisasi, pelatihan penggunaan aplikasi digital, serta aksi nyata verifikasi lapangan. Alat utama yang digunakan adalah aplikasi Qur’an Kemenag yang telah terkalibrasi. Hasil pengabdian menunjukkan adanya peningkatan signifikan pada aspek kognitif dan keterampilan masyarakat, di mana pemahaman mengenai konsep arah kiblat meningkat dari 33,3% menjadi 83,3% dan kemampuan menggunakan aplikasi digital mencapai 87,5% dari sebelunya 26,6%. Secara teknis, pendampingan ini berhasil mengoreksi arah kiblat pada 30 rumah warga menjadi sangat akurat dengan rentang deviasi hanya 0° sampai 2,5°. Dampak dari kegiatan ini adalah tumbuhnya kemandirian masyarakat dalam memverifikasi arah kiblat secara mandiri serta terciptanya ketenangan spiritual dalam beribadah. Salah satu luaran yang diperoleh dari pengabdian ini meliputi peningkatan kapasitas kader lokal literasi digital arah kiblat. Melalui integrasi teknologi dan partisipasi aktif, masyarakat kini mampu mentransformasi praktik ibadah tradisional menuju praktik yang lebih saintifik dan akurat.
An Analysis of the Effectiveness of the Apexel Lens as a Non-Conventional Optical Device for Hilal Observation Muhammad Khalil Mubarraq; Ravik Walhidayah; Ismail
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 8 No. 1 (2026): Juni 2026
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Crescent moon (Hilal) is a primary indicator to determine the onset of a new month in Hijri calendar, but access limitation to the conventional optical instrument such as telescope and theodolite remains a significant constaint across various strategic observation sites. This study aims to analyze the feasilibity of the Apexel telephoto lens as a non-conventional optical instrument for hilal observation, while also evaluating its potential as a screening tool to assessing the suitability of rukyat (crescent sighting) sites. The research employed a field-experimental approach, by comparing the optical performance of the Apexel lens mounted on a Google Pixel 5 with a standard astronomical telescope F70060 Telescope during Hilal observation conducted between November 21–24, 2025 at the Malikussaleh Observatory. The result demonstrate that Hilal image was successfully documented on November 23, 2025 with an altitude of 6° above the horizon. This outcome was significantly supported by favorable atmospheric conditions, characterized by cloud cover below 10%, which enabled the camera sensor to compensate for the Apexel lens's aperture limitations in capturing the low-contrast luminosity of the thin crescent. Conversely, detection attempts on other days failed due to adverse atmospheric conditions, wherein dense cloud cover attenuated hilal luminosity beyond the instrument's sensitivity threshold. From economic standpoint, this device represents a viable alternative for grassroots rukyat communities in remote areas, given its affordability and accessibility. Accordingly, Apexel telephoto lens has a potential to be a supplementary instrument for Hilal observation in the context of site exploration and public education, with the caveat that its performance is highly depends on sky clearance and astronomical parameters that meets the minimum visibility criteria.
Pluralisme Hukum dalam Penentuan Ramadan: Otoritas Kitab Matla’ul Badrayn sebagai Living Law di Masyarakat Indonesia.: Legal Pluralism in Determining the Start of Ramadan: The Authority of the Book Matla'ul Badrayn as "Living Law" in Indonesian Society. Muhammad Khalil Mubarraq; Ismail Ismail; Laiyina Ukhti
QISTHOSIA : Jurnal Syariah dan Hukum Vol. 7 No. 1 (2026)
Publisher : Sekolah Tinggi Agama Islam Negeri Majene

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46870/jhki.v7i1.2121

Abstract

Determining the beginning of Ramadan in Indonesia is frequently marked by tension between the state regulatory authority and traditional religious texts. This article analyzes the Kitab Matla' al-Badrayn wa Majma' al-Bahrayn by Sheikh Muhammad bin Ismail al-Fathani, which has transformed from classical literature into a living law within the Muslim community of the Archipelago (Nusantara). Employing a socio-legal approach, this study examines how theological compliance with the text, specifically page 60, which prescribes methods for determining Ramadan through istikmal, rukyah hilal, isbat hilal, and customary signs, challenges the hegemony of the national calendar unification based on MABIMS astronomical criteria. The findings indicate that the community's continued adherence to the local matla' territorial limit of 24 farsakh is a unique phenomenon. Although information technology enables the instant distribution of rukyah hilal news beyond physical boundaries, a segment of society continues to reject long-distance rukyah results that transcend textual stipulations. This underscores that for traditional society, legal certainty in worship is determined more by steadfast conviction in the turats heritage than by the administrative rationality of Wilayatul Hukmi proposed by the state. This article concludes that the reality of legal pluralism cannot be negated solely through a technocratic approach. The existence of Matla' al-Badrayn as a moral compass demands that the state acknowledge differences in month-determination methods as logical consequences of diversity within Islamic legal epistemology. These differences must be managed through constructive dialogue rather than coercive unification.
ROADSHOW TELESKOP DI DAYAH JABAL NUR ACEH UTARA Ismail Ismail; Hasna Tuddar Putri; Laiyina Ukhti; Syahri Ramadhani
Jurnal Pengabdian Masyarakat Multidisiplin Vol 6 No 3 (2023): Juni
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/jpm.v6i3.3323

Abstract

Jurusan Ilmu Falak di Indonesia masih tergolong baru dan masih kurang familiar di kalangan masyarakat, terutama di kalangan pelajar pada jenjang terakhir yang akan melanjutkan kuliah, hal ini dibuktikan hampir seluruh jurusan ilmu falak di Indonesia menjadi jurusan langka peminat. Metode yang digunakan dalam pengabdian ini berupa sosialisasi dan edukasi yang menggunakan alat peraga berupa teleskop pada santri kelas VI Dayah Jabal Nur Aceh Utara. Materi yang disampaikan berupa pengenalan ilmu falak dan penggunaan teleskop. Pengabdian ini bertujuan untuk memperkenalkan ilmu falak dalam bentuk sebuah profesi dan studi lanjut yang sangat dibutuhkan dalam kehidupan sehari-hari. Hasil pengabdian ini terlihat para santri sangat antusias dalam mengikuti acara dan adanya perubahan dalam memahami tentang ilmu falak dan teleskop. Diharapkan acara pengabdian seperti ini terus berlanjut dengan alat peraga yang berbeda-beda di sekolah dan dayah agar peminat melanjutkan pendidikan ke jenjang sarjana di jurusan ilmu falak.
PENDAMPINGAN PENYUSUNAN JADWAL SALAT BERBASIS ILMU FALAK DI DAYAH SALAFIYAH RAUDHATUL MA’ARIF COT TRUENG ACEH UTARA Ismail Ismail; Nazaruddin Nazaruddin; Hasna Tuddar Putri
Jurnal Pengabdian Masyarakat Multidisiplin Vol 9 No 2 (2026): Februari
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/jpm.v9i2.7520

Abstract

This community service initiative is driven by the urgent need for independence in determining prayer times at Dayah Salafiyah Raudhatul Ma’arif Cot Trueng, North Aceh, which has implemented the Muadalah curriculum. Although falak (Islamic astronomy) is a mandatory subject, the practical ability of the teachers to perform hisab (mathematical calculations) and compile accurate local prayer schedules based on specific geographical coordinates remains highly limited. This activity aims to provide intensive assistance to 25 teachers to equip them with the technical competence required to calculate the start of prayer times and independently compile precise schedules. The implementation method employs the Participatory Action Research (PAR) approach, emphasizing the active participation of partners through stages of problem mapping, training on prayer time calculation algorithms, schedule preparation workshops, and verification of calculation results. Based on the outcomes, there was a significant improvement in the partners' skills, where the teachers successfully mastered contemporary hisab methods and produced local prayer schedules validated for use as a worship guide within the dayah and the surrounding community. This achievement serves as a solution to the dayah’s dependency on external schedules that may not align with the specific coordinates of the location. As a recommendation, it is suggested that these compiled schedules be widely socialized, followed by periodic evaluations and the development of further training on hilal (crescent moon) observation to complement the practical application of falak science in the pesantren.
Perbandingan Medan Pandang Teleskop dalam Pengamatan Konjungsi Bulan – Jupiter dari Kota Medan, Barus, dan Lhokseumawe Hariyadi Putraga; Muhammad Dimas Firdaus; Marataon Ritonga; Arwin Juli Rakhmadi; Ruslandi Ruslandi; Ismail Ismail
Astroislamica: Journal of Islamic Astronomy Vol. 3 No. 1 (2024): Astroislamica: Journal of Islamic Astronomy (Juni)
Publisher : Islamic Astronomy Department, Sharia and Law Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47766/astroislamica.v3i1.2816

Abstract

Astronomical phenomenon occur for only a limited amount of time. Observing these phenomenon requires competent promoters and appropriate instruments. The field of view is one of the things that needs to be clearly known so that the observation can take place properly. In this study, joint observations were made between IAIN Lhokseumawe Falak Science Study Programme and OIF UMSU in Medan and Barus. The instruments used in these observations are different, resulting in a variety of fields of view and calculations are needed to get a description of the results. This study aims to calculate the field of view and visibility of the observed phenomenon, the conjunction of the Moon - Jupiter. The results obtained are for the instrument used by IAIN Lhokseumawe Falak Science Study Program at Malikussaleh Observatory has a field of view of 2°7'46.13‘ × 1°25'22.25’, the instrument used by UMSU Medan Falak Science Observatory has a field of view of 1°8'26.96‘ × 0°54'45.57’, and the instrument used by the OIF UMSU Barus team has a field of view of 1°0'43.74’ × 0°41'1.98. Using this combination of instruments cannot observe the conjunction phenomenon, because the elongation of the Moon - Jupiter at the time of the observation is >4°, so to be able to get the visibility of the phenomenon in 1 image requires an instrument that produces a field of view of ~5°.
Co-Authors Abdul Ghofur Abdul Ghofur Ardiyansyah Ardiyansyah Arwin Juli Rakhmadi Bastiar Bastiar Cut Nazar Mutia Hanum Devina Kharida Alhan Dikson T. Yasin Hariyadi Putraga Hasna Tuddar Putri Hasna Tuddar Putri Hasna Tuddar Putri Husnaini Husnaini Kamilan, Ikhsan Laiyina Ukhti Laiyina Ukhti Laiyina Ukhti Mahzan Mahzan Marataon Ritonga Maulana, Nora Muhammad Dimas Firdaus Muhammad Fauzi Muhammad Khalil Mubarraq Muhammad Khalil Mubarraq Muksal Mina Mulyani, Rita Mutia, Intan Najwa Aulia Putri Nazaruddin Nazaruddin Neo Agustina Rasyidin Rasyidin Ravik Walhidayah Ravik Walhidayah Rizqi Wahyudi Ruslandi Ruslandi Safwan Safwan, Safwan Saifuddin Dhuhri Syahri Ramadhani T. Yasin, Dikson Walhidayah, Ravik Zulfiah