ZODIAC LIGHT DETECTION BASED ON SKY QUALITY METER (SQM) DATA: PRELIMINARY STUDY

Authors

  • Hendro Setyanto Observatorium Imahnoong
  • Hendra Agus Prastyo Institut Teknologi Sumatera
  • Muhammad Basthoni Program Doktor Ilmu Falak, Pascasarjana UIN Walisongo Semarang
  • Fika Afhamul Fuscha Universitas Islam Negeri Walisongo Semarang http://orcid.org/0000-0001-5800-1653
  • Saleh M. Al Saab National Center of Astronomy, Saudi Arabia

DOI:

https://doi.org/10.21580/al-hilal.2021.3.2.8477

Abstract

Zodiacal light is a night sky phenomenon that can occur before or after dusk. Additionally, zodiacal light is referred to as false dawn (fajar kadzib) or false dusk. Zodiacal light is emitted by the dust leftovers of asteroids, comets, and other extraterrestrial objects colliding along the planet Mercury's orbit to Mars. This remaining material orbits the Sun in the same direction as the four planets. When the Sun illuminates the leftover dust, it appears as a zodiacal light in the hemisphere that experiences dawn or dusk. By using linear fittings we detect the presence of zodiacal light on the light curve of the night skybrightness. The Observations were made using a digital camera and SQM. From a number of observational data obtained at six locations, it shows that there is an identical linear pattern. From this linear model, it can be seen that the zodiacal light has been observed since the sun's position at -60 degrees below the horizon. Recognizing the presence of the zodiacal light is very important to know the time of the appearance of true dawn which is the beginning of the time for the dawn prayer.

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Author Biography

Fika Afhamul Fuscha, Universitas Islam Negeri Walisongo Semarang

References

Administrator. “Sky Quality Meter ‘LU.’” Geoptik Astronomy. https://www.geoptik.com/index. php? route= product/ product&product_id=749.

Amrulloh, Moh Afif. “Penentuan Awal Waktu Shalat Subuh Menurut Kementerian Agama dan Aliran Salafi.” Jurisdictie 2, no. 2 (2011): 120–34.

Baddiun, Ruslin Zainal, Yudhiakto Pramudya, and Okimustava. “Korelasi Pengukuran Tingkat Kecerahan Langit dengan Menggunakan Kamera Smartphone dan Sky Quality Meter Berbantuan Tracker.” JIIF: Jurnal Ilmu dan Inovasi Fisika 05, no. 01 (2021).

Basthoni, Moch. “A Prototype of True Dawn Observation Automation System.” Jurnal Sains Dirgantara 18, no. 1 (2021): 33–42.

Byrd, Deborah, dan Bruce McClure. “Zodiacal light: All you need to know.” EarthSky, 2021. https://earthsky.org/astronomy-essentials/everything-you-need-to-know-zodiacal-light-or-false-dawn/.

Cinzano, Pierantonio. “Night Sky Photometry with Sky Quality Meter.” ISTIL Internal Report, no. September (2005): 1–14. https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.504.1325&rep=rep1&type=pdf.

Dinah, Nurul Amirah. “Design and Implementation of a Sky Quality Meter to Measure Light Pollution in the Night Sky.” Nanyang Technological University, 2020.

Guo, Di Fu, Shao-Ming Hu, Xinfa Chen, Dongyang Gao, dan Jun Ju Du. “Sky Brightness at Weihai Observatory of Shandong University.” Astronomical Society of the Pacific 126 (2014): 496–503.

Hassan, A H, Yasser A Abdel-Hadi, I A Issa, dan N Y Hassanin. “Naked Eye Observations for Morning Twilight at Different Sites in Egypt.” NRIAG Journal of Astronomy and Geophysics 3, no. 1 (1 Juni 2014): 23–26. doi:10.1016/j.nrjag.2014.02.002.

Kerr, Richard A. “Researchers Solve the Mystery of the Zodiacal Light.” Science, 2010. https://www.science.org/content/article/researchers-solve-mystery-zodiacal-light.

Kotarba, Andrzej Z, Sara Chacewicz, dan Elwira Żmudzka. “Night Sky Photometry Over Warsaw (Poland) Evaluated Simultaneously with Surface-based and Satellite-based Cloud Observations.” Journal of Quantitative Spectroscopy and Radiative Transfer 235 (2019): 95–107. https://doi.org/10.1016/j.jqsrt.2019.06.024.

Lasue, Jeremie, Anny Chantal Levasseur-Regourd, dan Jean Baptiste Renard. “Zodiacal Light Observations and its Link with Cosmic Dust: A Review.” Planetary and Space Science 190 (2020): 104973.

Ngadiman, N F, N N M Shariff, dan Z S Hamidi. “Sensor Technology for Night Sky Brightness Measurements in Malaysia.” International Journal of Recent Technology and Engineering 8, no. 6 (2020). doi:10.35940/ijrte.d9721.038620.

Noor, Laksmiyanti Annake Harijadi, dan Fahmi Fatwa Rosyadi Satria Hamdani. “The Dawn Sky Brightness Observations in the Preliminary Shubuh Prayer Time Determination.” Qijis: Qudus International Journal of Islamic Studies 6, no. 1 (2018).

Pangerang, Andi. “Mengenal Fajar/Senja Kazib (False Dawn/Dusk) atau Cahaya Zodiak (Zodiacal Light).” Edukasi Sains Antariksa, 2021. http://edukasi.sains.lapan.go.id/artikel/mengenal-fajar-senja-kazib-false-dawn-dusk-atau-cahaya-zodiak-zodiacal-light/290.

Pramudya, Yudhiakto, dan Muchlas Arkanuddin. “The Sky Brightness Measurement during the 2016 Solar Eclipse in Ternate.” Journal of Physics: Conference Series, Vol. 771. IOP Publishing, 2016.

Pun, Chun Shing, dan Chu-wing So. “Night-sky Brightness Monitoring in Hong Kong a City-wide Light Pollution Assessment.” Environmental monitoring and assessment 184 (29 June 2011): 2537–57. doi:10.1007/s10661-011-2136-1.

Rahmi, Nailur, dan Firdaus Firdaus. “An Analysist of Sa’adudin Djambek’S Hisab Method About All the Time of Praying Schedule.” Al-Hilal: Journal of Islamic Astronomy 2, no. 1 (2020). doi:10.21580/al-hilal.2020.2.1.5588.

Raisal, Abu Yazid, Yudhiakto Pramudya, Okimustava Okimustava, dan Muchlas Muchlas. “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, no. 1 (2019): 1–13. doi:10.30596/jam.v5i1.3121.

Raisal, Abu Yazid, Hariyadi Putraga, Muhammad Hidayat, dan Rizkiyan Hadi. “Posisi Matahari Pada Saat Ekuinoks, Summer Solstice, dan Winter Solstice di Observatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara.” Jurnal Riset dan Kajian Pendidikan Fisika 7, no. 1 (2020): 35. doi:10.12928/jrkpf.v7i1.15772.

Rizkiawan, M. Asep, Rosalina, dan Emilia Roza. “Teknik Menentukan Waktu Hilangnya Syafaq (Cahaya Merah) Menggunakan Sky Quality Meter (Sqm) dengan Metode Titik Potong (Cutoff).” Jurnal Kumparan Fisika 4, no. 2 (2021): 103–11. doi:10.33369/jkf.4.2.103-111.

Rochman, Arman Abdul, Dhani Herdiwijaya, dan Hendro Setyanto. “Tingkat Kepercayaan Fitting Polinomial Kurva Gradien Data SQM untuk Menentukan Kemunculan Fajar.” Journal of Multidisciplinary Academic 3, no. 2 (2019): 27–31.

Ściężor, T. “A New Astronomical Method for Determining the Brightness of the Night Sky and its Application to Study Long-Term Changes in the Level of Light Pollution.” Monthly Notices of the Royal Astronomical Society 435, no. 1 (11 Oktober 2013): 303–10. doi:10.1093/mnras/stt1297.

Semeida, M A, dan A H Hassan. “Pseudo dawn and true dawn observations by naked eye in Egypt.” Beni-Suef University Journal of Basic and Applied Sciences 7, no. 3 (2018): 286–90.

Zaman, Qomarus. “Terbit Fajar dan Waktu Subuh (Kajian Nash Syar’i dan Astronomi).” Mahakim: Journal of Islamic Family Law 2, no. 1 (2018).

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Published

2021-10-31

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