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All Journal Jurnal Riset dan Kajian Pendidikan Fisika YUDISIA : Jurnal Pemikiran Hukum dan Hukum Islam JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Jurnal Environmental Science MUST: Journal of Mathematics Education, Science and Technology Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Jurnal SOLMA ORBITA: Jurnal Pendidikan dan Ilmu Fisika Jurnal Dinamika Sosial Budaya Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan Journal of Islam and Science Jurnal Ilmu Pemerintahan, Administrasi Publik, dan Ilmu Komunikasi (JIPIKOM) ELFALAKY: Jurnal Ilmu Falak Proceeding International Seminar of Islamic Studies Al-Hilal: Journal of Islamic Astronomy Al-Afaq: Jurnal Ilmu Falak dan Astronomi DIKTUM: JURNAL SYARIAH DAN HUKUM Astroislamica: Journal of Islamic Astronomy Jurnal Ilmu dan Inovasi Fisika Al-Ahkam: Jurnal Ilmu Syari'ah dan Hukum JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah)
Hariyadi Putraga
Universitas Muhammadiyah Sumatera Utara
Religion Arts Humanities Astronomy Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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ZIJ ULUGH BEK AND HIS INFLUENCE ON ISLAMIC ASTRONOMY DEVELOPMENT IN NUSANTARA Arwin Juli Rakhmadi; Hariyadi Putraga; Nor Azam bin Mat Noor
Proceeding International Seminar of Islamic Studies INSIS 5 (March 2023)
Publisher : Proceeding International Seminar of Islamic Studies

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Abstract

Ulugh Bek (d. 853 H/1449 AD) was a Muslim scientist who mastered mathematics and astronomy, he also served as director of the Samarkand Observatory. One of his works in astronomy is “Zij Ulugh Bek” also known as “Zij al-Sulthany”. This zij contains data or astronomical tables of celestial bodies which include studies of hisab and calendar, the celestial bodies' area, planets, and the star's position. In its development, this work significantly influences the Islamic science idea and development in Nusantara, where the Islamic science books written by Islamic science national figures refer to and quote this zij a lot. Genealogically, Ulugh Bek’s Zij is one of the main sources of Islamic science studies development in Nusantara, while the astronomical data contained in this book is fairly accurate so it is still suitable to use at present. 
Penentuan Awal Waktu Subuh Menggunakan Kamera DSLR dan Metode Moving Average Hariyadi Putraga; Arwin Juli Rakhmadi; Muhammad Dimas Firdaus; Muhammad Hidayat
JIIF (Jurnal Ilmu dan Inovasi Fisika) Vol 6, No 2 (2022)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.402 KB) | DOI: 10.24198/jiif.v6i2.38995

Abstract

Keberadaan Teknologi terutama optik dan digital yang dapat digunakan dengan pengaturan serupa dimanapun agar dapat dilaksanakan siapa saja dapat menjadi standar baru untuk penentuan dan tampilan visual awal waktu subuh yang terlihat di lapangan. Kamera Digital yang dapat diambil dengan berkala sehingga dapat menghasilkan deretan gambar sesuai waktu dan menujukan perbedaan langit  saat transisi waktu subuh menjadi salah satu pilihan dan alat pembuktian awal waktu subuh di dunia.Hasil dari penelitian ini menunjukkan terdapat perbedaan awal waktu subuh menurut Kemenag dengan hasil olahan citra menggunakan metode moving average. Hasil olahan citra tersebut berhasil menunjukkan awal perubahan langit pada waktu subuh dengan terlihatnya perubahan nilai pixel yang signifikan. Dari penelitian ini ditemukan hasil awal waktu subuh pada tanggal pengamatan berada pada saat matahari pada dip -17° 07' 12".
THE DETERMINATION OF DAWN TIME IN MEDAN USING SQM WITH RASPBERRY PI BASED Putraga, Hariyadi; Rakhmadi, Arwin Juli; Hidayat, Muhammad; Firdaus, Muhammad Dimas
Proceeding International Seminar of Islamic Studies INSIS 5 (March 2023)
Publisher : Proceeding International Seminar of Islamic Studies

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Abstract

The beginning of dawn prayer is still a hot debate among Falak practitioners and astronomers in Indonesia. The Adzan marks the start of dawn prayer time were too fast because the sky is still dark and not as mentioned in the Hadith, which is when the sky gets brighter.  This study aims to prove the change from the night sky to the bright sky using a photometer called SQM with a recording device based on Raspberry Pi so that it can be used easily, quickly, lightly, and also safe to be left in a location during the data collection process. The results obtained in this study show that SQM on Raspberry can function properly, the dawn time at SQM readings using Raspberry Pi shows that the Sun is in the dip range of 15-18 degrees below the horizon when the sky changes brighter occurred
STUDY OF HILAL’S CONTRAST USING INFRARED FILTER IN DAYLIGHT HILAL OBSERVATION Firdaus, Muhammad Dimas; Rakhmadi, Arwin Juli; Hidayat, Muhammad; Putraga, Hariyadi
Proceeding International Seminar of Islamic Studies INSIS 5 (March 2023)
Publisher : Proceeding International Seminar of Islamic Studies

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Abstract

Hilal observation has already undergone a very significant development of techniques. From daytime observations, up to the uses of various instruments that can support the success of observations. One of the routine activities carried out by the Falak Science Observatory of Muhammadiyah University of North Sumatra is daytime hilal observation.  The hilal observation conducted by OIF UMSU uses an infrared filter instrument that can transmit light at infrared wavelengths and filter light at other wavelengths. This research tries to compare the contrast of daylight hilal images taken using filters and not using filters.The results obtained from the experiments carried out resulted in a contrast value using an infrared filter is 129% using Weber contrast analysis, and 4% using Michelson contrast analysis.
Transformasi Hisab-Rukyat Dalam Penentuan Awal Bulan Hijriah di Muhammadiyah Ritonga, Marataon; Rakhmadi, Arwin Juli; Hidayat, Muhammad; Putraga, Hariyadi
Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan Vol. 21 No. 1 (2024): Al-Hikmah: Jurnal Agama dan Ilmu Pengetahuan (AJAIP)
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/al-hikmah:jaip.2024.vol21(1).14676

Abstract

Muhammadiyah as a tajdid (renewal) movement will continue to improve the system in determining the beginning of hijri month through studies, discussions seminars, and research so that the methods and criteria used are truly following the Qur’an, hadith and the Muslims needs in the world. This research purpose to analyze, explore, and discover the transformation and changes in methods made by Muhammadiyah to determine the new month. The research method in this study is a literature study, by conducting a study and book analysis, journals, Suara Muhammadiyah magazines, and related references that have a close relationship with the studies. Based on the study, it shows that Muhammadiyah has made several transformations in its ijtihad to determine the beginning of the new hijri month, starting from the hisab imkanur rukyat sytem, then replaced with the hisab ijtima’ qabl al-ghurub, and the last one was perfected with the hisab wujudul hilal.
Effectiveness Test of iOptron Cube-G Telescope for Hilal Observation Firdaus, Muhammad Dimas; Putraga, Hariyadi; Butar-Butar, Arwin Juli Rakhmadi; Hidayat, Muhammad
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 4 No. 2 (2022): Desember 2022
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v4i2.5341

Abstract

The use of robotic telescopes in the practice of observing the Hilal in Indonesia is quite widespread. One type of telescope that is widely used by observers is the iOptron Cube. Telescopes with an alt-azimuth mounting type with GPS features can be used easily by observers who observes Hilal on a portable basis. The effectiveness of using this telescope needs to be studied more deeply because pointing accuracy and alt-azimuth tracking mounting capabilities require good computational ability to obtain the expected results. After being tested with two configurations (narrow and wide field of view) and seeing the various supporting features embedded in this telescope, it can be concluded that the iOptron Cube is quite effective for observing Hilal.
Analisis Peningkatan Polusi Cahaya Berdasarkan Pembacaan SQM dan Citra Satelit VIIRS tahun 2017 – 2022 di Kota Medan Putraga, Hariyadi; Raisal, Abu Yazid; Firdaus, Muhammad Dimas; Rakhmadi, Arwin Juli
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 5 No. 1 (2023): Juni 2023
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v5i1.7250

Abstract

An analysis of light pollution has been carried out based on the reading of a photometercalled Sky Quality Meter (SQM) which shows the level of light pollution expressed in the MPASSreference. This study aims to determine the increase in light pollution in the city of Medan and to findout the implications for astronomical observations there. Light pollution distribution maps data andradiance quantity data are obtained through a platform that presents light pollution mapping and isfurther analyzed with literacy studies. Its Found that the radiance value is proportional to the level ofpollution and is influenced by the population of civilization in Medan from 2017 to 2022 soastronomical observations and phenomena are also decreasing to be visible.
THE STUDY OF ARABIC CONSTELLATION FROM THE BOOK SUWAR AL-KAWAKIB AL-THABITA USING STELLARIUM SOFTWARE Putraga, Hariyadi; Butar-Butar, Arwin Juli Rakhmadi; Hidayat, Muhammad; Firdaus, Muhammad Dimas
Journal of Islam and Science Vol 9 No 2 (2022): July-December
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jis.v9i2.31526

Abstract

The constellations originating from Arab civilization were still very little known and studied. Al-Ṣūfi's book, al-Kawākib al-Thābitah, contains the record of coordinates, approximate magnitudes, and star details with graphs. This study examines the difference of stars in the sample constellation, compares the visual appearance of the illustrations on the Stellarium software, and studies the differences between the western constellations and the Arabic constellations. The result shows some differences between the constellations of the almagest and al-Kawākib al-Thābitah in the number of stars in the sample constellations, differences in illustrations from the orientalized figures, and the star magnitude in al-Ṣūfi's work that similar to Ptolemy's works. Al-Sufi identified a total of 134 additional stars, 65 stars located in the Northern constellations, 41 stars in the Zodiac constellation, and 28 stars in the Southern constellations. His observations showed that the magnitude values of 520 stars out of a total of 1022 stars were identical between al-Sufi and Ptolemy. Stellarium provides an excellent visual presentation of the Arabic constellations according to Al-Sufi's book that shows position, illustration, and mapping in the night sky.
Perbandingan Perhitungan Waktu Shalat Menggunakan Astrolabe RHI dan Accurate Times Hasrian Rudi Setiawan; Arwin Juli Rakhmadi; Muhammad Hidayat; Abu Yazid Raisal; Hariyadi Putraga
Al-Ahkam: Jurnal Ilmu Syari’ah dan Hukum Vol. 6 No. 2 (2021): Al-Ahkam: Jurnal Ilmu Syari'ah dan Hukum
Publisher : Fakultas Syariah, Universitas Islam Negeri Raden Mas Said Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22515/alahkam.v6i2.3416

Abstract

This study aims to determine the comparison of the calculation of prayer times using the RHI Astrolabe and Accurate Times Software. In addition, this study also describes in detail the steps in determining prayer times using the RHI Astrolabe and Accurate Times Software. The research method used in this study is experimental. The results of this study indicate that there is a difference in the calculation of prayer times on December 20 between the RHI Astrolabe and Accurate Times Software. The difference between Asr is 8 minutes, Isha 6 minutes and Fajr 1 minute. Meanwhile, during Zuhr, Maghrib and Shuruq there is no difference in the calculation of the RHI Astrolabe with the Accurate Times Software.   Penelitian ini bertujuan untuk mengetahui perbandingan perhitungan waktu shalat menggunakan Astrolabe RHI dan Software Accurate Times. Tujuan penelitian lainnya adalah untuk menjelaskan secara rinci langkah-langkah dalam menentukan waktu shalat menggunakan Astrolabe RHI dan Software Accurate Times. Adapun metode penelitian yang digunakan dalam penelitian ini yaitu eksperimen. Hasil penelitian ini menunjukkan bahwa terdapat selisih perbedaan perhitungan waktu shalat pada tanggal 20 Desember antara Astrolabe RHI dengan Software Accurate Times. Adapun selisih pada waktu Ashar 8 menit, Isya 6 menit dan Subuh 1 menit. Sedangkan waktu Zuhur, Maghrib dan Syuruq tidak ada perbedaan pada perhitungan menggunakan Astrolabe RHI dan Software Accurate Times.
SHADIQ DAWN OBSERVATION USING ALL SKY CAMERA IN DELI SERDANG, NORTH SUMATERA Ritonga, Marataon; Rakhmadi, Arwin Juli; Qorib, Muhammad; Putraga, Hariyadi
ELFALAKY: Jurnal Ilmu Falak Vol 8 No 2 (2024): Desember
Publisher : UIN ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ifk.v8i2.49707

Abstract

Technological advancements in optics and digital image recorders as means were breakthroughs in capturing and observing Shadiq Fajr's appearance which produce images according to visual as seen by the eye in the field. Digital camera usage such as the All-Sky Camera which is adjustable in taking dawn data according to a certain time, could show the sky conditions from dark to light, thus providing real evidence of the shadiq fajr appearance. Based on the research conducted, there are differences in Fajr prayer times based on the results of the observations by the All-Sky Camera with processed images using ImageJ and the Fajr prayer schedule issued by the Ministry of Religion of the Republic of Indonesia. Based on the image produced by ASC and processed using imagej, it shows that there is a change in the sky from dark to bright time which is characterized by significant graphic changes continuously. The study results obtained the average of the Sun depth at the Shadiq Fajr appearance is the altitude of 13.75 degrees below the horizon.
Co-Authors Abu Yazid Raisal Ahmad Abdulwfa Ajraini Nazli Ajraini Nazli Andika, Muhammad Sadam Arwin Juli Rakhmadi Firdaus, Muhammad Dimas Hasrian Rudi Setiawan Hidayat, Muhammad Ismail Ismail Isra Hayati Leo Hermawan Makromatul Afifah Nasution Marataon Ritonga Muhammad Dimas Firdaus Muhammad Dimas Firdaus Muhammad Hidayat Muhammad Qorib Nor Azam bin Mat Noor Nur Nilam Sary Panjaitan Riskiyan Hadi Rizkiyan Hadi Ruslandi Ruslandi Sinaga, Roynanda Thariq, Muhammad