Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

4.013

P-Index

This Author published in this journals

All Journal Ulul Albab: Jurnal Studi dan Penelitian Hukum Islam Jurnal Riset dan Kajian Pendidikan Fisika Jurnal Pendidikan Fisika Al-Ahkam: Jurnal Ilmu Syari'ah dan Hukum International Journal of Science and Applied Science: Conference Series JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Titian Ilmu: Jurnal Ilmiah Multi Sciences SPEKTRA: Jurnal Kajian Pendidikan Sains Jurnal Environmental Science Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Pendas : Jurnah Ilmiah Pendidikan Dasar JPF : JURNAL PENDIDIKAN FISIKA Jurnal Kumparan Fisika Indonesian Review of Physics (IRiP) Generation Journal Ihsan: Jurnal Pengabdian Masyarakat Navigation Physics : Journal of Physics Education Ekonomi Bisnis Manajemen dan Akuntansi (EBMA) Proceeding International Seminar of Islamic Studies Al-Afaq: Jurnal Ilmu Falak dan Astronomi Cakrawala: Jurnal Pengabdian Masyarakat Global Edutainment : Jurnal Ilmu Pendidikan dan Kependidikan Jurnal Pengabdian Masyarakat Indonesia Sejahtera Cendikia Pendidikan Azkayra: Jurnal Pengabdian Masyarakat dan Sosial Bumi: Jurnal Hasil Kegiatan Sosialisasi Pengabdian Kepada Masyarakat Al-Ahkam: Jurnal Ilmu Syari'ah dan Hukum JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Jurnal Cakrawala Akademika

Abu Yazid Raisal

Universitas Muhammadiyah Sumatera Utara

Author-ID : 2423320

Religion Agriculture, Biological Sciences & Forestry 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 Public Health Social Sciences Other

Published : 40 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4

Effectiveness Of Active Learning Method Quiz Team Type On Student Learning Outcomes In Subject Ohm Law In SMA Negeri 1 Pundong Raisal, Abu Yazid; Suwondo, Nanang
Indonesian Review of Physics (IRiP) Vol 1, No 2 (2018)
Publisher : Universitas Ahmad Dahlan

This study aims to measure the increase in student learning outcomes from cognitive aspects and student activity between active quiz type learning methods and conventional methods. The sampling technique is non-random sampling. Data was collected using the pre-test and post-test for cognitive aspects while the affective aspects used the observation. Analysis of the data used the normality test, homogeneity test, and hypothesis testing. The hypothesis test used is a two-party t test. The results show that tcount= 7.273 > ttable= 2.01 at a significant level of 5%. It means that there are significant differences for cognitive aspects between learning outcomes using the team quiz type and conventional methods of active learning methods. Overall the team quiz method is more effective for improving student learning outcomes from cognitive aspects, and student activities.

Measuring the Apparent Magnitude of Planet Mars on August 1st and October 2nd, 2018 at the Falak Observatory at Muhammadiyah University of North Sumatera Hidayat, Muhammad; Rakhmadi, Arwin Juli; Raisal, Abu Yazid
Indonesian Review of Physics (IRiP) Vol 3, No 1 (2020)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v3i1.1838

The Bright stars that were seen by the eyes are the received quantity of the energy flux sent from the celestial body. The energy flux is inversely proportional to the distant quadrant which means that the light of the stars that are visible to our eyes cannot be compared to the actual brightness or even weaker than the others and the visible star lights the apparent magnitude. The purpose of this study is to measure the apparent magnitude of Mars. This research methodology is quantitative, by taking number of images/videos of Mars and then the data is processed by using IRIS software. The results of the analysis is using IRIS software that shows the value of the apparent magnitude of Mars on August 1st, 2018 is (-1.56 Â± 0.33) and October 2nd 2018 is (-1.84 Â± 0.08). This was taken by selecting the best image result in clear night sky.

The Effect of the Installation Angle of the Sky Quality Meter on the Night Sky Brightness and the Beginning of the Fajr Prayer Time Raisal, Abu Yazid; Hidayat, Muhammad; Hermawan, Leo; Rakhmadi, Arwin Juli
Indonesian Review of Physics (IRiP) Vol 3, No 2 (2020)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v3i2.2074

Measuring the brightness of the night sky and determining the start of Fajr prayer times can be done using SQM. Observations were made at OIF UMSU with coordinates 3o 34' 55.06" N and 98o 43' 17.09" E. The sky brightness was measured using three SQMs mounted facing the zenith, eastern horizon, and western horizon. The night sky brightness values for SQM directed to the zenith, eastern horizon, and western horizon are 18.23 mpsas, 15.82 mpsas, and 15.47 mpsas. The beginning of fajr prayer time produced by SQM is after the beginning of fajr prayer time obtained using the Accurate Times concerning the Sun's altitude 18o below the horizon. The difference obtained by SQM directed to the zenith, eastern horizon, and western horizon is 29.5 minutes, 36.7 minutes, and 39.5 minutes. In other words, the beginning of Fajr prayer time used in Indonesia is earlier than it should be.

Pengukuran Kecerahan Langit Arah Zenit di Medan dan Serdang Bedagai Menggunakan Sky Quality Meter Abu Yazid Raisal; Hariyadi Putraga; Muhammad Hidayat; Arwin Juli Rakhmadi
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol 5 No 1 (2021): May Edition
Publisher : Program Studi Pendidikan Fisika STKIP Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jipfri.v5i1.835

Light pollution is a worldwide problem that affects fewer stars that can be seen at night. This study aims to measure the brightness of the sky in the zenith direction to minimize the effect of light pollution in observing celestial bodies. The research used the observation method of sky brightness level with SQM. Measurement of sky brightness was carried out in two places, namely in Medan and Serdang Bedagai. The SQM is mounted in a zenith direction and set to retrieve data every two seconds. Observations were made on November 10-13, 2018, during the new moon phase. The average value of sky brightness obtained in Medan is 18.05 mpsas and the NELM value is 4.00. Based on the Bortle scale, Medan is included in the ninth class area, namely the inner-city sky. Meanwhile, the average value of sky brightness obtained in Serdang Bedagai is 19.69 mpsas and the NELM value is 5.26. Based on the Bortle scale, Serdang Bedagai belongs to the sixth class area, namely bright suburban sky.

Understanding the effect of revolution and rotation of the earth on prayer times using accurate times Abu Yazid Raisal; Arwin Juli Rakhmadi
Ulul Albab: Jurnal Studi dan Penelitian Hukum Islam Vol 4, No 1 (2020): Vol. 4, No. 1, Oktober 2020
Publisher : Sultang Agung Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jua.v4i1.10936

Prayer time is closely related to the position of the Sun toward the Earth. The position of the Sun against the Earth is affected by the revolution and rotation of the Earth. Three cities were chosen to see the effect of revolution and rotation of the Earth on prayer times in the hemisphere, namely Stockholm city representing the northern hemisphere, Wellington city representing the southern hemisphere, and Pontianak city representing the equatorial region. Prayer times are calculated using the Accurate Times software during the equinox, summer solstice, and winter solstice in 2020. Locations in high latitudes will experience large differences in prayer times throughout the year due to differences in day and night lengths. Accurate Times software can show the prayer times difference in the hemisphere. Areas that sometimes experience day for 24 hours or night for 24 hours are difficult in determining prayer times. There are two options to overcome this problem, namely adjusting to neighboring countries where night and day can be distinguished or following prayer times in Mecca and Medina.

Posisi matahari pada saat ekuinoks, summer solstice, dan winter solstice di observatorium ilmu falak Universitas Muhammadiyah Sumatera Utara Abu Yazid Raisal; Hariyadi Putraga; Muhammad Hidayat; Rizkiyan Hadi
Jurnal Riset dan Kajian Pendidikan Fisika Vol 7, No 1 (2020): April 2020
Publisher : Universitas Ahmad Dahlan

Abstrak. Selama satu tahun, Matahari tidak selalu berada di daerah khatulistiwa, namun terkadang berada di daerah utara khatulistiwa serta daerah selatan khatulistiwa. Kedudukan Matahari di khatulistiwa disebut ekuinoks, kedudukan Matahari saat berada di titik terjauh di utara dari khatulistiwa disebut solstis musim panas (summer solstice), kedudukan Matahari saat berada di titik terjauh di selatan dari khatulistiwa disebut solstis musim dingin (winter solstice). Matahari di Observatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara menunjukkan posisi yang berbeda saat ekuinoks, summer soltice, dan winter solstice. Matahari terbit di arah timur dan terbenam di arah barat hanya terjadi pada saat ekuinoks. Meskipun saat ekuinoks, namun Matahari tidak dapat menunjukk arah timur dan barat sepanjang hari. Hal ini disebabkan pergerakan Matahari tidak tegak lurus terhadap horizon melainkan miring sesuai dengan lintang tempat.Kata kunci: summer sosltice, winter sosltice, ekuinoksAbstract. During one year, the Sun is not always in the equator, but sometimes it is in the north of the equator and the south of the equator. The position of the Sun at the equator is called the equinox, the position of the Sun when it is at its farthest point north of the equator is called the summer solstice, the position of the Sun when it is at the farthest point south of the equator is called the winter solstice. The Sun at Obervatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara shows a different position during the equinox, summer solstice, and winter solstice. The sun rises in the east and sets in the west only at the equinox. Even at the equinox, the Sun can't show east and west all day. This is due to the movement of the Sun not perpendicular to the horizon but tilted in accordance with the latitude of the place.Keywords: summer sosltice, winter sosltice, equinox

The moon phases influence on the beginning of astronomical dawn determination in Yogyakarta Abu Yazid Raisal; Yudhiakto Pramudya; Okimustava Okimustava; Muchlas Muchlas
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

In astronomy, there are three types of dawn. They are astronomical, nautical, and civil dawn. The sunlight is starting to appear on the east horizon when the Sun altitude is 18o below the horizon. Hence, there is a change on the sky brightness. The sky brightness can be affected by the moon phases. The sky brightness level is monitored by Sky Quality Meter (SQM). The SQM was installed upward to the zenith. There are 4 locations of measurement in Yogyakarta. The data has been collected for nine months to obtain the complete moon phases. The beginning of astronomical dawn is time when the sky brightness level is starting to decrease. The moving average algorithm was employed to determine the beginning of astronomical dawn. The time when the astronomical dawn begins is compared with the sun altitude calculation. The sun altitude calculation has been done using accurate times software. The difference of the beginning of astronomical dawn by measurement and calculation are 18.61±6.81 minutes, 19.12±3.28 minutes, 31.12±7.76 minutes, and 27.24±8.04 minutes, on the new moon (0), on the first quarter (0.25), on the full moon (0.5) and on the last quarter (0.75), respectively. The weather condition is also contributing to the results.

Pengukuran Tingkat Polusi Cahaya dan Awal Waktu Subuh di OIF UMSU dengan Menggunakan Sky Quality Meter Arwin Juli Rakhmadi; Hasrian Rudi Setiawan; Abu Yazid Raisal
Titian Ilmu: Jurnal Ilmiah Multi Sciences Vol 12 No 2 (2020): Titian Ilmu: Jurnal Ilmiah Multi Sciences - July 2020
Publisher : Universitas Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30599/jti.v12i2.667

Polusi cahaya merupakan masalah utama bagi kegiatan observasi di observatorium. Karena itu Observatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara (OIF UMSU) perlu mengukur tingkat polusi cahaya demi kelancaran observasi. Polusi cahaya dapat diketahui dengan cara mengukur tingkat kecerahan langit malam menggunakan Sky Quality Meter (SQM). Penelitian ini dilakukan dengan metode observasi. SQM dipasang pada tiga arah yaitu zenit, 45o timur dan ufuk timur. Nilai kecerahan langit untuk SQM yang diarahkan ke ufuk timur memiliki nilai paling rendah dibandingkan dengan arah yang lain dikarenakan polusi cahaya yang tinggi di langit ufuk timur. Hasil penelitian menunjukkan nilai kecerahan langit dari SQM yang diarahkan ke zenit, 45o timur dan ufuk timur menunjukkan nilai rata-rata 17,01 mpsas, 16,57 mpsas, dan 15,81 mpsas. Berdasarkan hasil penelitian dapat disimpulkan bahwa polusi cahaya di OIF UMSU sudah dominan. Awal waktu Subuh terjadi pada saat fajar nautikal dilihat dari ketinggian Matahari yang diperoleh oleh SQM yang diarahkan ke zenit, 45o timur dan ufuk timur memiliki nilai rata-rata 9,78o, 11,06o dan 11,07o di bawah horizon.

PENGAMATAN HILAL SIANG MENGGUNAKAN METODE OLAHAN FILTER WARNA PADA SOFTWARE IRIS Hariyadi Putraga; Abu Yazid Raisal; Muhammad Hidayat; Arwin Juli Rakhmadi
JURNAL SPEKTRA Vol 7, No 1 (2021): SPEKTRA: Jurnal Kajian Pendidikan Sains
Publisher : Program Studi Pendidikan Fisika, FITK, UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/spektra.v7i1.187

Keberadaan perangkat lunak yang dapat melakukan pengolahan citra hasil pengamatan menjadi salah satu instrumen yang dapat membantu pengamat untuk melakukan pencarian keberadaan hilal siang hari di dalam citra gambar yang diambil oleh alat penangkap citra atau kamera. Salah satu instrument perangkat lunak yang dapat digunakan untuk pengolahan citra benda langit adalah software IRIS Astronomy yang berasal dari Astrosurf. Keberadaan perangkat lunak ini membantu pengamat dalam mengolah, mendapatkan citra gambar dan memperjelas dari keadaan benda langit yang terdapat pada citra yang didapat dan diolah tersebut. Dengan keberadaan fitur – fitur yang dapat digunakan untuk mengganti tampilan gambar ke dalam tampilan temperature, ultraviolet dan inverted color, maka dapat mempermudah pengamat dalam menentukan kemungkinan keberadaan hilal pada gambar yang diolah. Pada penelitian ini dilakukan percobaan pengamatan hilal atau bulan sabit pada siang hari (matahari masih diatas ufuk) menggunakan teleskop dengan bantuan software pengolah citra. Kegiatan ini dilakukan dengan mengambil gambar dengan kamera. Kemudian. dilanjutkan dengan mengolah gambar menggunakan IRIS. Hal ini dilakukan untuk melihat kemungkinan keberadaan dan keterlihatan hilal di siang hari tersebut.

PENENTUAN AWAL WAKTU SUBUH MENGGUNAKAN SKY QUALITY METER PADA VARIASI DEKLINASI MATAHARI Mustofa Ahyar; Yudhiakto Pramudya; Abu Yazid Raisal; Okimustava Okimustava
Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2018: Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2018
Publisher : Universitas Sebelas Maret

Abstract: Determination of the beginning of the prayer time is very important for Muslims because it is one of the prayer pillars. However, the determination of beginning morning prayer is still difficult, because the sun is below the horizon. The determination of the beginning of dzuhur, ashr, and maghrib times are easier since the sun's shadow is still clearly visible. The sun position is determined by sun declination. The sun declination value is given a positive sign (+) when it is north of the sky equator and negative sign (-) when it is to the south of the celestial equator. This research method uses the experimental method. The determination of the subuh time has been done by measuring sky brightness level that was measured by SQM. There is a difference between the beginning of morning prayer time between the Accurate Times software calculation and the measurement. In the sun declination variation, difference data ranged from 21 - 36 minutes. From this study, it was concluded that the value of sun declination affected the beginning of dawn time.Abstrak: Penentuan awal waktu salat yang tepat penting bagi umat muslim, karena merupakan salah satu rukun salat. Namun, penentuan awal waktu salat subuh masih sulit, karena matahari berada di bawah horizon. Penentuan awal waktu zuhur, asar, dan magrib lebih mudah karena bayangan matahari masih terlihat jelas. Posisi matahari ditentukan oleh deklinasi matahari, nilai deklinasi matahari diberi tanda positif (+) ketika berada di sebelah utara ekuator langit dan negatif (-) ketika berada di sebelah selatan ekuator langit. Metode penelitian ini menggunakan metode eksperimen. Penentuan awal waktu subuh dengan menggunakan pengukuran Tingkat Kecerahan Langit (TKL) ini diukur dengan Sky Quality Meter (SQM). Terdapat selisih awal waktu salat subuh antara perhitungan Software Accurate Times dan pengukuran. Pada variasi deklinasi matahari diperoleh data selisih berkisar antara 21-36 menit. Dari penelitian ini disimpulkan bahwa nilai deklinasi matahari berpengaruh terhadap awal waktu subuh.

Co-Authors Abdurrohman Chapakiya Ananda, Fadilla Sayu Anggraini, Maya Dita Ariswan Ariswan Arwin Juli Rakhmadi Aryunita, Srika Butar Butar, Arwin Juli Rakmadi Diyah Anggraini Edy Ervianto Fadilla Sayu Ananda Firdaus, Muhammad Dimas Hadi Ismail, Abdul Hariyadi Putraga Hasibuan, Alya Fathi Muhammad Hasrian Rudi Setiawan Hassan, Rohana Hermawan, Leo Heru Kuswanto Hidayat, Muhammad Hizami Sabil Ida Hanifah Isra Hayati Jen Agus Perry Hasibuan Jf, Nurul Zahriani Khair, Alfath Leo Hermawan Marataon Ritonga Mavianti, Mavianti Mega Sukma Muchlas , Muchlas Muchlas Muhammad Hidayat Mustofa Ahyar Nanang Suwondo Nanang Suwondo Nilfa Zalukhu Noveri Lysbetti M Nurhalim Nurhalim, Nurhalim Nurul Zahriani Jf Okimustava Okimustava Rahyul Amri Rihan Yuhyi Rizka Harfiani Rizkiyan Hadi Rosynanda Nur Fauziah Rosynanda Nur Fauziah Sakti Hutabarat Siagian , Ruben Cornelius Taufiq Iradah Telaumbanua Vira Aurel Yudhiakto Pramudya Yuhyi, Rihan

Title

Found 40 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 40 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 40 Documents
Search