Pengukuran Kecerahan Langit Arah Zenit di Medan dan Serdang Bedagai Menggunakan Sky Quality Meter

  • Abu Yazid Raisal Universitas Muhammadiyah Sumatera Utara
  • Hariyadi Putraga Universitas Muhammadiyah Sumatera Utara
  • Muhammad Hidayat Universitas Muhammadiyah Sumatera Utara
  • Arwin Juli Rakhmadi Universitas Muhammadiyah Sumatera Utara

Abstract

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.

Keywords: Sky Quality Meter, light pollution, Bortle scale

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References

Bortle, J. E. (2001). Introducing the Bortle Dark-Sky Scale. Sky & Telescope, 101(2), 126–130.

Butar-Butar, A. J. R., Raisal, A. Y., & Pramudya, Y. (2020). Effect of the total lunar eclipse of 28 July 2018 on the night sky brightness at the Observatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara. Journal of Physics: Conference Series, 1523(1), 1–6. https://doi.org/10.1088/1742-6596/1523/1/012005

Cinzano, P. (2005). Night sky photometry with sky quality meter. ISTIL Internal Report, 1–14.

Herdiwijaya, D, & Arumaningtyas, E. P. (2011). Pengukuran kecerlangan langit arah zenith di bandung dan cimahi dengan menggunakan sky quality meter. Prosiding Seminar Himpunan Astronomi Indonesia., 6–8.

Herdiwijaya, Dhani. (2016). Sky brightness and twilight measurements at Jogyakarta city, Indonesia. Journal of Physics: Conference Series, 771(1), 1–4. https://doi.org/10.1088/1742-6596/771/1/012033

Lyytimäki, J., Tapio, P., & Assmuth, T. (2012). Unawareness in environmental protection: The case of light pollution from traffic. Land Use Policy, 29(3), 598–604. https://doi.org/10.1016/j.landusepol.2011.10.002

Noor, L. A. H., & Hamdani, F. F. R. S. (2018). The dawn sky brightness observations in the preliminary shubuh prayer time determination. Qudus International Journal of Islamic Studies, 6(1), 25–37. https://doi.org/10.21043/qijis.v1i1.2870

Pramudya, Y., Budi, K. S., Okimustava, & Muchlas. (2019). Preliminary study on relation between temperature, humidity and Night Sky Brightness in Yogyakarta. Journal of Physics: Conference Series, 1231(1), 1–7. https://doi.org/10.1088/1742-6596/1231/1/012004

Pramudya, Yudhiakto, & Arkanuddin, M. (2016). The sky brightness measurement during the 2016 solar eclipse in Ternate. Journal of Physics: Conference Series, 771(1), 1–4. https://doi.org/10.1088/1742-6596/771/1/012013

Raisal, A. Y., Hidayat, M., Hermawan, L., & Rakhmadi, A. J. (2021). The Effect of the Installation Angle of the Sky Quality Meter on the Night Sky Brightness and the Beginning of the Fajr Prayer Time. Indonesian Review of Physics, 3(2), 35–39. https://doi.org/10.12928/irip.v3i2.2074

Raisal, A. Y., Pramudya, Y., Okimustava, O., & Muchlas, M. (2017). The moon phases influence on the beginning of astronomical dawn determination in Yogyakarta. International Journal of Science and Applied Science: Conference Series, 2(1), 1–7. https://doi.org/10.20961/ijsascs.v2i1.16664

Rajkhowa, R. (2014). Light Pollution and Impact of Light Pollution. International Journal of Science and Research (IJSR), 3(10), 861–867. www.ijsr.net

Unihedron. (2020). Unihedron SQM-LU-DL Opertor’s Manual. Unihedron. http://unihedron.com/projects/darksky/cd/SQM-LU-DL/SQM-LU-DL_Users_manual.pdf

Published
2021-07-10
How to Cite
Raisal, A., Putraga, H., Hidayat, M., & Rakhmadi, A. (2021). Pengukuran Kecerahan Langit Arah Zenit di Medan dan Serdang Bedagai Menggunakan Sky Quality Meter. JIPFRI (Jurnal Inovasi Pendidikan Fisika Dan Riset Ilmiah), 5(1), 51-58. https://doi.org/10.30599/jipfri.v5i1.835
Section
Articles