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All Journal Jurnal Riset dan Kajian Pendidikan Fisika YUDISIA : Jurnal Pemikiran Hukum dan Hukum Islam Al-Ahkam: Jurnal Ilmu Syari'ah dan Hukum JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) SPEKTRA: Jurnal Kajian Pendidikan Sains 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 Wahana Fisika : Jurnal Fisika dan Terapannya 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 Chemistry 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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Makna Kata Buruj dalam Al-Qur’an Perspektif Pengamatan Astronomis Firdaus, Muhammad Dimas; Putraga, Hariyadi; Hidayat, Muhammad; Rakhmadi, Arwin Juli
AL - AFAQ : Jurnal Ilmu Falak dan Astronomi Vol. 5 No. 2 (2023): Desember 2023
Publisher : Universitas Islam Negeri Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/afaq.v5i2.7488

Abstract

Al-Qur’an as the holy book of Muslims contains many themes of discussion in it, ranging from faith, sharia, stories and science. One of the discussions related to science is assembling celestial bodies. Buruj is one of the celestial bodies mentioned in Al-Qur'an, in total there are three verses that discuss the buruj as a celestial body. In some literature, buruj is interpreted as a big star, a big planet, a constellation, and a set of stars. From these meanings, a common thread can be drawn that the buruj is understood as a set of stars. In the previous research used an interpretive perspective, this paper tries to understand the meaning of the buruj more broadly by using the perspective of astronomical observations conducted by the OIF UMSU team. From the observations, it is known that there are several types of sets of stars, such as constellations, open star clusters, globular star clusters, and galaxies. So that the meaning of the buruj in the Qur'an as a celestial body is a set of beautiful stars that humans can observe, not limited to the constellations which number 12, 48 or 88.
Hilal Observation using LRGB Filters Firdaus, Muhammad Dimas; Putraga, Hariyadi; Ritonga, Marataon; Rakhmadi, Arwin Juli
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.v6i2.10928

Abstract

The technology used in hilal observation continues to develop. Most recently, using filters has become one of the options in hilal observation. Several filters can be used, ranging from low wavelengths like ultraviolet to high wavelengths like infrared. In some ideas, there needs to be a limit to the use of filters, the human eye's ability as a benchmark for the filter used. The human eye is sensitive to light with visual wavelengths, and one type of filter in this range is the LRGB filter. In this study, hilal observations were made on four filters and compared to find out which filter is better at increasing the contrast of hilal against the background. Using Michelson and Weber contrast as the definition of contrast to determine the comparison of the brightness value of the object with the background.  From the observations made, it is found that the R filter will produce higher contrast values at low altitudes, followed by the L, G, and B filters. However, at higher altitudes, the contrast values of the L and R filters are similar, while the G and B filters remain low.
Model Komunikasi Sains OIF UMSU dalam Pelatihan Ilmu Falak di Vihara Vimalakirti Sinaga, Roynanda; Rakhmadi, Arwin Juli; Putraga, Hariyadi; Andika, Muhammad Sadam; Thariq, Muhammad
Jurnal Ilmu Pemerintahan, Administrasi Publik, dan Ilmu Komunikasi (JIPIKOM) Vol 7, No 2 (2025): JIPIKOM OKTOBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jipikom.v7i2.6239

Abstract

Penelitian ini menganalisis model komunikasi sains yang diterapkan oleh Observatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara (OIF UMSU) dalam pelatihan Ilmu Falak di Vihara Vimalakirti, Medan. Kegiatan ini melibatkan anak-anak usia TK dan SD dari komunitas Buddhis beserta orang tua mereka. Menggunakan pendekatan kualitatif dan wawancara semi-terstruktur, penelitian ini mengidentifikasi penerapan empat model komunikasi sains: defisit, dialog, partisipatif, dan kontekstual. Model defisit berfungsi sebagai fondasi pengetahuan awal, sedangkan model dialog dan partisipatif mendorong keterlibatan peserta melalui diskusi dan eksperimen seperti peluncuran roket air dan pengamatan Matahari. Model kontekstual tampak dari penyesuaian kegiatan terhadap budaya dan agama peserta serta kerja sama lintas institusi. Hasil penelitian menunjukkan bahwa pendekatan komunikasi sains yang inklusif dan berbasis nilai toleransi efektif dalam meningkatkan literasi sains dan membangun ruang dialog antaragama. Studi ini menawarkan model edukasi sains transformatif bagi masyarakat majemuk.
ANALISIS DAMPAK POLUSI CAHAYA LAMPU ARTIFISIAL TERHADAP KECERLANGAN LANGIT MALAM MENGGUNAKAN SKY QUALITY METER (Studi Kasus Barus-Sumatera Utara): Studi Kasus Barus-Sumatera Utara Firdaus, Muhammad Dimas; Butar-Butar, Arwin Juli Rakhmadi; Putraga, Hariyadi; Hidayat, Muhammad
ELFALAKY: Jurnal Ilmu Falak Vol 6 No 2 (2022): Desember
Publisher : UIN ALAUDDIN MAKASSAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/ifk.v6i2.33787

Abstract

The brightness of the night sky is a necessity in astronomical observations. Sky with minimal light pollution can be optimized for observation and research. Light pollution is an obstacle in astronomical observations, one of the light pollution that affects the night sky a lot is artificial lights that are not properly conditioned. In this study, it is explained how the impact of artificial lights on good sky brightness using the Sky Quality Meter (SQM). By observing several nights, it was found that locations with a lot of light exposure can make the sky brighter ~3.3 times compared to locations with minimal light.
Pengamatan Hilal Siang Hari di OIF Cabang Barus Muhammad Dimas Firdaus; Hariyadi Putraga; Muhammad Hidayat; Arwin Juli Rakhmadi
Astroislamica: Journal of Islamic Astronomy Vol. 1 No. 2 (2022): Astroislamica: Journal of Islamic Astronomy (Desember)
Publisher : Islamic Astronomy Department, Sharia and Law Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.937 KB) | DOI: 10.47766/astroislamica.v1i2.965

Abstract

Crescent observation as one of the practices carried out within the scope of falak science has an escalation in methods to adapt the development of science and technology. The development of crescent observation method has an impact on the observation time. In the past, observing crescent only focused when the sun had set, but now observing crescent can be done since the sun is still above the horizon. OIF UMSU as an institution engaged in the field of falak science also conducts crescent observations every month from noon. On November 25, 2022, OIF Barus Team managed to capture the new moon crescent at noon at 13:49 WIB with an elongation of 18°25'. This observation could maximizing existing instruments to obtain crescent images with smaller elongation.
Problematika Penentuan Hari Tarwiyah dan Arafah dalam Perspektif Ilmu Falak Marataon Ritonga; Arwin Juli Rakhmadi; Hariyadi Putraga; Muhammad Hidayat
Astroislamica: Journal of Islamic Astronomy Vol. 2 No. 1 (2023): 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.v2i1.1093

Abstract

For a long time, Muslims were facing problems related to the determination of the Tarwiyah and the Arafat fasting day. In this case, whether Muslims should follow the Saudi Arabian calendar or the local one. In this study, Muslims differ in opinion, some argue that they should follow the Saudi Arabia calendar and others say that enough to follow the national calendar. The absence of unified calendar resulted in many problems faced by Muslims in assigning their holidays such as Ramadan, Shawwal, and Dhulhijah. To achieve Muslim unification in conducting various religious rituals, Muslims must have a unification dating system in order to realize togetherness in determining the worshipping time. This research is literature research. Thus the data that used in the form of books, journals, and other references. The results concluded that the determination of Tarwiyah and f Arafat Day until now still provides dispute among Muslims, there are those who argue specifically in determining the Dhulhijah beginning must be oriented to the Saudi Arabia kingdom’s determination. While others argue that assigning the worshipping time does not have to follow Saudi Arabia, just adhering to the nation’s determination
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 Abu Yazid Raisal Ajraini Nazli Ajraini Nazli Andika, Muhammad Sadam Arwin Juli Rakhmadi Firdaus, Muhammad Dimas Hasrian Rudi Setiawan Hidayat, Muhammad Ismail Ismail Ismail Ismail Isra Hayati Leo Hermawan Marataon Ritonga Marataon Ritonga Muhammad Dimas Firdaus Muhammad Dimas Firdaus Muhammad Dimas Firdaus Muhammad Hidayat Muhammad Hidayat Muhammad Qorib Nasution, Makromatul afifah Nor Azam bin Mat Noor Panjaitan, Nur Nilam Sary Riskiyan Hadi Rizkiyan Hadi Ruslandi Ruslandi Sinaga, Roynanda Thariq, Muhammad