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SOLAR EPHEMERIS ACCORDING TO SIMON NEWCOMB Alamul Yaqin
Al-Hilal: Journal of Islamic Astronomy Vol 2, No 2 (2020)
Publisher : Fakultas Syari'ah dan Hukum UIN Walisongo

The development of Falak cannot be separated from the ephemeris table, one of them i.e Simon Newcomb solar ephemeris. This ephemeris was used in the initial calculation of Abdur Rachim, one of Falak Indonesia's experts. The purpose of this study was to determine the accuracy of the Simon Newcomb ephemeris reckoning algorithm and its strengths and weaknesses. This paper use descriptive analysis as the research methodology. The results of this study are this Ephemeris is quite accurate because because there aremany correction terms and consider aspects of the planet's relative motion to the Earth that can be seen in the formula for perturbation and nutation correction. The advantage of this ephemeris,it has a long period correction which is useful for calculating the Sun ephemeris in years far enough from the epoch used and directly uses UT time in its calculations so there is no need to convert UT to TD. The weakness of this ephemeris is that it cannot be done manually because the formula used is too long and there are many formula corrections.

Analisis Nuzul Al-Quran dengan Gerhana Matahari Cincin Perspektif Astronomi Ahmad Izzuddin; Alamul Yaqin
MAGHZA Vol 4 No 1 (2019): Januari - Juni 2019
Publisher : Fakultas Ushuluddin Adab dan Humaniora (FUAH), Universitas Islam Negeri Profesor Kiai Haji Saifuddin Zuhri Purwokerto

Historians differ in their opinion regarding the time of NuzÅ«l al-Qurâ€™Än i.e the 17th, 19th, 21st and 24th Ramadhan -12 H. The author is interested in verifying the time of NuzÅ«l al-Qurâ€™Än by tracing the events that can be read easily the time and date i.e annular solar eclipse 27th January 632 AD when the death of Ibraham's son Muhammad. The author uses new moon data of Accurate Times 5.6 month data with crescent visibility criteria of Odeh and new MABIMS and by adding the 13th month (nasÄ«') every 3 years to find out the date of the NuzÅ«l al-Qurâ€™Än event. The purposes of this research are to know the date of NuzÅ«l al-Qurâ€™Än by tracing annular solar eclipse 27th January 632 AD and to know the factors of the different date of NuzÅ«l al-Qurâ€™Än among historians. This research uses historical research methods with steps: Heuristics (Source Collection), Source Criticism, Interpretation and Historiography (Presentation of results). The results of this research are NuzÅ«l al-Qurâ€™Än occurred on Monday, 17 Ramadhan -12 H which coincided with 19 January 610 M

Descriptive Study of the Nabawiyah Sirah by Ibn Ishaq and Ibn Hisham Arditya Prayogi; Alamul Yaqin; M. Zulvi Romzul Huda Fuadi
International Journal of Islamic Thought and Humanities Vol. 1 No. 2 (2022): International Journal of Islamic Thought and Humanities
Publisher : Sekolah Tinggi Agama Islam Taruna Surabaya

The position of sirah or the study of the history of the prophet Muhammad SAW has an important position in the Islamic religious tradition where it ranks second after the study of hadith or sunnah. Thus, this article aims to describe how the study of the nabawiyah sirah was carried out by the two main retainers of its writing, especially seeing how the process and the relationship between these two sirah works from a historical perspective. This article itself was written with a qualitative descriptive approach supported by data collection methods in the form of literature study. From the results of the review, it is known that Ibn Ishaq's sirah is the first work that is able to systematically review the life story of the prophet, although there are still many shortcomings and finally it was perfected by Ibn Hisham with his sirah work. Both Ibn Ishaq and Ibn Hisham, both have important contributions in writing the book Sirah Nabawiyah. Ibn Ishaq with the quality of his book narration is strong enough to make his work an important reference in the study of the nabawiyah sirah.

NEO QUADRATUM GEOMETRICUM: Inovasi Instrumen Falak Klasik George Von Peurbach 'Alamul Yaqin
ELFALAKY: Jurnal Ilmu Falak Vol 7 No 2 (2023): Desember
Publisher : UIN ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ifk.v7i2.39837

Quadratum Geometricum is a surveying and astronomical instrument by George Von Peurbach who is known as an Austrian astronomer. This article discusses the accuracy and development concept of Quadratum Geometricum which is named Neo Quadratum Geometricum. This research is development research, which has 2 stages, namely the preliminary stage and the formative evaluation stage which consists of: self evaluation, prototyping (expert reviews and one-to-one, and small groups), and field tests. The findings of this study include: Neo Quadratum Geometricum innovation, namely the existence of a conversion arc from the value of the horizontal and vertical rulers which serves to value of the angle of tan/cotan immediately known without looking at the table. Quadratum Geometricum is more accurate in the tan angle conversion test, Neo Quadratum Geometricum is 0.0025 greater than the calculator, while Quadratum Geometricum is the same. Because, the accuracy of Neo Quadratum Geometricum is only up to minutes. However, in terms of the effectiveness of using Neo Quadratum Geometricum it is more practical, because it does not use tables. In measuring the height of the object, the difference is 8.5 cm from the actual height.

Pengembangan Media Pembelajaran Fukudrat Solver Berbasis Matlab Pada Materi Fungsi Kuadrat Yaqin, Alamul; Fathoni, M. Ivan Ariful; Fitri, Anisa
Teorema: Teori dan Riset Matematika Vol 9, No 2 (2024): September
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/teorema.v9i2.15658

Tujuan penelitian ini adalah untuk mengetahui apakah media pembelajaran Fukudrat Solver yang berbasis GUI Matlab, valid dan layak digunakan untuk pembelajaran di sekolah pada materi fungsi kuadrat. Penelitian ini dilakukan di SMK Al-Kyai Sukosewu dari tanggal 31 Mei hingga 8 Juni 2024. Untuk penelitian dan pengembangan ini menggunakan model pengembangan Borg and Gall sepuluh tahap yang telah dimodifikasi menjadi enam tahap: (1) penelitian dan pengumpulan informasi; (2) persiapan; (3) pengembangan produk; (4) pengujian lapangan awal; (5) revisi produk awal; dan (6) pengujian lapangan skala besar. Menurut temuan, validasi ahli media dan ahli materi masing-masing memperoleh rata-rata skor dengan kriteria "Media Sangat Valid Digunakan". Dan skor rata-rata dengan kriteria "Media Sangat Layak Digunakan" dari hasil angket respon 20 siswa. Hasil ini menunjukkan bahwa media pembelajaran Fukudrat Solver berbasis GUI Matlab untuk materi fungsi kuadrat valid dan layak digunakan baik secara mandiri maupun dalam pembelajaran di kelas.

Qibla Direction of the Historical Mosque in Pekalongan City: Accuracy and Tolerance 'Alamul Yaqin; Iqbal Kamalludin
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 6 No. 2 (2024): Desember 2024
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v6i2.11149

The problem of the Qibla direction of the mosque is still one of the things that often occurs in society. In the modern era that has been equipped with sophisticated tools in determining the Qibla direction, there are still mosques and musala that are not facing the Qibla, moreover mosques that are hundreds of years old with traditional equipment. Pekalongan has three historical mosques: Aulia Sapuro Mosque, Jami' Mosque of Pekalongan City and Wakaf Mosque, which was the beginning of the spread of Islam in Pekalongan. This article aims to find out the history of the oldest mosque in Pekalongan and determine the accuracy and tolerance of its Qibla direction. This research is a qualitative research and data collection uses the field through interviews and observations. The data analysis technique uses comparative descriptive. The results of this article are as follows: The determination of the Qibla direction by 3 methods (Compass, Compass and magnetic declination, Local Ra?du Qiblah) shows the largest inclination in the Qibla direction of the Aulia Sapuro Mosque used the Local Ra?du Qiblah method and the smallest inclination in the Qibla direction of the Wakaf Mosque used the compass method. The inclination of the Qibla direction of the 3 mosques is still included in the category of Qibla direction tolerance, so it is valid to pray in the mosque.

Pattern of Sharia Compliance In KSPPS In Pekalongan City (Analysis of Constraints And Solutions To The Deed of Financing) Tarmidzi, Tarmidzi; Inayati, Anindya Aryu; Mulyawisdawati, Richa Angkita; Yaqin, Alamul
Islamic Banking : Jurnal Pemikiran dan Pengembangan Perbankan Syariah Vol 10 No 2 (2025): Islamic Banking:Jurnal Pemikiran dan Pengembangan Perbankan Syariah - Februari 2
Publisher : Sekolah Tinggi Ekonomi dan Bisnis Syariah (STEBIS) Indo Global Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36908/isbank.v10i2.1184

This research aims to find out, how is Sharia Compliance KSPPS in Pekalongan City, and the factors causing it in Pekalongan City? The method and approach in this study is a qualitative approach. The qualitative approach is an approach method by capturing social phenomena in the community to be further described in the form of a narrative by revealing the results of the arrests as they are. The results of this research are as follows: first; Sharia compliance discusses the entire process starting from socialization, distribution or application to completion of settlement, in general it has implemented compliance in accordance with sharia principles, although some aspects have not been met. Second; There are patterns of sharia non-compliance from a number of instruments in financing at KSPPS based on three patterns of influence, a) educational perspective: DPS at KSPPS in Pekalongan City still do not have a DPS certificate, customers or members who do not understand and understand clearly related to contracts in sharia financing, managers who do not have an understanding of sharia (muamalah). b) rational perspective: conventional banking facilities and technology are more sophisticated when compared to Islamic banks, the non-applicability of reporting systems and profit sharing in accordance with Islamic principles and Islamic accounting, because they are considered too complicated and difficult for customers. c) the emotional perspective of Muslims who make choices in KSPPS for religious reasons is still small compared to rationality reasons, so they choose conventional banks.

Qibla Direction of the Historical Mosque in Pekalongan City: Accuracy and Tolerance 'Alamul Yaqin; Iqbal Kamalludin
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 6 No. 2 (2024): Desember 2024
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v6i2.11149

The problem of the Qibla direction of the mosque is still one of the things that often occurs in society. In the modern era that has been equipped with sophisticated tools in determining the Qibla direction, there are still mosques and musala that are not facing the Qibla, moreover mosques that are hundreds of years old with traditional equipment. Pekalongan has three historical mosques: Aulia Sapuro Mosque, Jami' Mosque of Pekalongan City and Wakaf Mosque, which was the beginning of the spread of Islam in Pekalongan. This article aims to find out the history of the oldest mosque in Pekalongan and determine the accuracy and tolerance of its Qibla direction. This research is a qualitative research and data collection uses the field through interviews and observations. The data analysis technique uses comparative descriptive. The results of this article are as follows: The determination of the Qibla direction by 3 methods (Compass, Compass and magnetic declination, Local Ra?du Qiblah) shows the largest inclination in the Qibla direction of the Aulia Sapuro Mosque used the Local Ra?du Qiblah method and the smallest inclination in the Qibla direction of the Wakaf Mosque used the compass method. The inclination of the Qibla direction of the 3 mosques is still included in the category of Qibla direction tolerance, so it is valid to pray in the mosque.

Lunar Eclipse Types Comparison of al-Dur al-Anīq with Astronomical Algorithms (Implications for the Law of Lunar Eclipse Prayers) Yaqin, Alamul; Azmi, Muhammad Farid
Al-Marshad: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Vol 11, No 1 (2025): Al-Marshad
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jam.v11i1.23476

This article aims to examine the accuracy of Astronomical Algorithms and al-Dur al-Anīq lunar eclipse type calculations and their impact on the ruling of lunar eclipse prayer. This qualitative research uses descriptive and comparative approaches. This article uses lunar eclipse data from 2011 – 2050 from Astronomical Algorithms, al-Dur al-Anīq, and NASA, and 3 additional partial lunar eclipses with small umbral magnitude. This study concludes that the determination of the type of lunar eclipse al-Dur al-Anīq is more accurate than Astronomical Algorithms because the average magnitude penumbra and umbra difference is almost the same as NASA and there is no difference type of lunar eclipse with NASA. Meanwhile, Astronomical Algorithms there are differences in types of Lunar Eclipses with NASA on lunar eclipses April 4, 2015 and July 18, 2027. The different types of lunar eclipses above, do not have an impact on the difference of lunar eclipse prayer law on lunar eclipse 2011-2050 because the two eclipses differ in No Lunar Eclipse with Penumbra and Partial with Total, but it happens on lunar eclipse 24 February 2157, 16 June 2421, 22 May 2627, because the different types of lunar eclipses occur between Penumbra and Partial.

Revitalizing Justice in Fiqh: Revisiting Non-Retroactive Principles to Address Sexual Violence Kamalludin, Iqbal; Pratami, Bunga Desyana; Khasna, Syarifa; Yaqin, Alamul; Umar, Achmad Jauhari
Ulul Albab: Jurnal Studi dan Penelitian Hukum Islam Vol 7, No 2 (2024): Vol. 7, No. 2, April 2024
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jua.v7i2.31028

Handling sexual violence cases requires a holistic, human rights-based approach, encompassing prevention, protection, law enforcement, recovery, and ensuring victims' access to justice. Islam advocates equality for all, but its implementation is constrained by the improper handling of many sexual violence cases due to the non-retroactive Sexual Violence Law. This paper proposes the urgency of upholding the principle of retroactivity in criminal law and Fiqh Jinayah to build an anti-sexual violence construction based on justice and equality. This normative juridical research employs conceptual, statutory, philosophical, and historical approaches. This approach provides an in-depth understanding of the concept of justice in the handling of sexual violence, according to Sharia. This study uses the Islamic legal literature and comparative legal studies to examine the urgency of upholding the retroactive principle in criminal law and Fiqh Jinayah. This study confirms that applying the retroactive principle to sexual violence is consistent with the six characteristics of Maqasid Sharia: cognitive nature, interconnectedness, wholeness, openness, multidimensionality, and purposefulness. The retroactive principle is necessary in cases of sexual violence as the primary rule in addressing such crimes, in addition to complementing existing laws and regulations. This principle is crucial to ensure fair law enforcement in cases of sexual violence.

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