Batas Kualitas Langit yang Ideal untuk Lokasi Observasi Awal Waktu Subuh

Adi Damanhuri, Agus Solikin

Abstract


This article describes the ideal sky quality limit to be used as an early subuh prayer time observation location, considering that early subuh prayer time research using a Sky Quality Meter (SQM) is mostly carried out from various observation locations with different sky quality. The research method used is quantitative with a sample of 6 observation locations with a daily data amount of 945. The data analysis carried out is to find a correlation between the night level which represents the quality of the sky and the inflection point which represents the sign of the appearance of the early subuh prayer time. Based on the analysis, it is concluded that the ideal sky quality limit to be used as a location for observing early subuh prayer time data using SQM is 20.35 mpsas. This limit is an important consideration for all parties who will conduct observations at early subuh prayer time, must choose locations that have a minimum night level of 20.35 mpsas.


References


Admiranto, A. G., R. Priyatikanto, S. Maryam, Ellyyani, and N. Suryana, Preliminary Report of Light Pollution in Indonesia Based on Sky Quality Observation, Journal of Physics: Conference Series, 1231.1 (2019)

Baddiley, Chris, Light Pollution Modelling, and Measurements at Malvern Hills AONB, of County Conversion to Blue Rich LEDs., Journal of Quantitative Spectroscopy and Radiative Transfer, 2018

Barentine, John, Going for the Gold : Quantifying and Ranking Visual Night Sky Quality in International Dark Sky Places, International Journal of Sustainable Lighting, 18 (2016), 915

Cinzano, P., and F. Falchi, Quantifying Light Pollution, Journal of Quantitative Spectroscopy and Radiative Transfer, 2014

Damanhuri, Adi, Pengamatan Dan Penelitian Awal Waktu Subuh: Semua Bisa Melakukannya, I (Surabaya: Nizamia Learning Center, 2020), p. 122

, Sistem Kontrol Teleskop Meade LX-600 Dengan Aplikasi Open Source, Al-Marshad: Jurnal Astronomi Islam Dan Ilmu-Ilmu Berkaitan, 5.2 (2019)

Djamaluddin, Thomas, Penentuan Waktu Shubuh: Pengamatan Dan Pengukuran Fajar Di Labuan Bajo, Web, 2018

, Waktu Shubuh Ditinjau Secara Astronomi Dan Syari, Web, 2009

Dominoni, Davide M., Jesko Partecke, and Jesko Partecke, Does Light Pollution Alter Daylength? A Test Using Light Loggers on Free-Ranging European Blackbirds (Turdus Merula), Philosophical Transactions of the Royal Society B: Biological Sciences, 2015

Falchi, Fabio, Pierantonio Cinzano, Christopher D. Elvidge, David M. Keith, and Abraham Haim, Limiting the Impact of Light Pollution on Human Health, Environment and Stellar Visibility, Journal of Environmental Management, 92.10 (2011), 271422

Firmansyah, Teguh, ISRN: Waktu Shalat Subuh Dan Isya Perlu Dievaluasi | Republika Online, 2017

Gil, Diego, Mariam Honarmand, Javier Pascual, Eneider Prez-Mena, and Constantino Macas Garcia, Birds Living near Airports Advance Their Dawn Chorus and Reduce Overlap with Aircraft Noise, Behavioral Ecology, 2015

Herdiwijaya, Dhani, Sky Brightness and Twilight Measurements at Jogyakarta City, Indonesia, 2016

, WAKTU SUBUH Tinjauan Pengamatan Astronomi, 14 (2017), 5164

Jennings, When Peter, World News Tonight, Harvard Nurses, Health Study, and David Blask, Artificial Night Lighting and Human Health, 2005, 20034

Koreksi Awal Waktu Subuh (Malang: Pustaka Qiblati, 2010)

Maskufa, Maskufa, D.R. Munazat, Adi Damanhuri, and Ahmad Abd. Shomad, The Implication of Sky Quality Meter Technology in Observing the Dawn To Determine Subh Prayer Time (presented at the Proceedings of the 2nd International Conference on Quran and Hadith Studies Information Technology and Media in Conjunction with the 1st International Conference on Islam, Science and Technology, ICONQUHAS & ICONIST, Bandung, October 2-4, 2018, Indonesia, EAI, 2020)

Membedah Awal Waktu Subuh Berdasarkan Sains Dan Fikih | Republika Online

Nor, Siti Asma Mohd, and Mohd Zambri Zainuddin, Sky Brightness for Determination of Fajr and Isha Prayer by Using Sky Quality Meter, International Journal of Scientific & Engineering Research, 3.8 (2012), 13

Ogden, Lesley J Evans, Collision Course : The Hazards of Lighted Structures and Windows to Migrating Birds Collision Course :, 1996

PENENTUAN AWAL WAKTU SHALAT SUBUH MENURUT KEMENTERIAN AGAMA DAN ALIRAN SALAFI | Amrulloh | Jurisdictie: Jurnal Hukum Dan Syariah [accessed 10 February 2022]

PSPP - GNU Project - Free Software Foundation

Raihana, AW, M Muhamad Hazwan, and K Norihan, Issues on Determination Of-Accurate Fajr and Dhuha Prayer Times According to Fiqh and Astronomical Perspectives in Malaysia : A Bibliography Study, Conference Proceeding, Bali Indonesia Oct 13-14,2016,18 (10) Part V, 18 (2016), 67580

Raisal, Abu Yazid, and Yudhiakto Pramudya, Pemanfaatan Metode Moving Average Dalam Menentukan Awal Waktu Salat Subuh Menggunakan Sky Quality Meter (SQM), Al-Marshad: Jurnal Astronomi Islam Dan Ilmu-Ilmu Berkaitan, 5.1 (2019)

Ritonga, Marataon, Problematika Syafak Dan Fajar Dalam Menentukan Waktu Salat Isyak Dan Subuh, Al-Marshad: Jurnal Astronomi Islam Dan Ilmu-Ilmu Berkaitan, 7.2 (2021), 16982

Saksono, Tono, and Mohamad Ali Fulazzaky, Predicting the Accurate Period of True Dawn Using a Third-Degree Polynomial Model, NRIAG Journal of Astronomy and Geophysics, 9.1 (2020), 23844

Sugiyono, Dr, Statistika Untuk Penelitian (Cetakan Ke-30), Bandung: Cv Alfabeta, 2019

The, Ublications O F, and Ociety O F The, Astronomical Observing Conditions at Xinglong Observatory from 2007 to 2014, Patat 2003, 2015, 12921306

Unihedron, Unihedron Sky Quality Meter (SQM) Products Disk Contents, Web, 2019

Walker, David A., JMASM 48: The Pearson Product-MomentCorrelation Coefficient and Adjustment Indices:The Fisher Approximate Unbiased Estimator Andthe Olkin-Pratt Adjustment (SPSS), Journal of Modern Applied Statistical Methods, 16.2 (2017), 54046

Walpole, Ronald E, Pengantar Statistika, ed. by Bambang Sumantri, 3rd edn (Jakarta: Gramedia Pustaka Utama, 1995), p. 514




DOI: https://doi.org/10.30596/jam.v8i1.9355

Refbacks

  • There are currently no refbacks.