Spectral Identification of Illumination Lamps in the Institut Teknologi Sumatera Area Using the Star Analyzer
Muhammad Ikhwan Dzaky (a*), Dr. Robiatul Muztaba, S.Si., (b), M.Si.- Muhammad Isnaenda Ikhsan, S.Si., M.Si. (b)

a) Atmospheric and Planetary Science, Sumatera Institute of Technology
Jalan Terusan Ryacudu, Desa Way Hui, Jati Agung, Lampung Selatan 35365, Indonesia
*sap[at]itera.ac.id

Abstract

Light pollution is one of the negative consequences of urbanization, impacting the environment, human health, and astronomical observations. Institut Teknologi Sumatera (ITERA), as an educational institution, also contributes to this phenomenon through the use of various artificial lighting systems. This research aims to identify and classify the spectral characteristics of lighting sources installed throughout ITERA. Data collection was conducted through night-time field spectroscopy using a portable diffraction grating star analyzer 100, mounted on a Canon EOS 5D Mark IV DSLR camera with a Canon EF 70-200mm f/4L USM lens. The recorded spectral images were processed using RSpec software to perform wavelength calibration, spectral intensity extraction, and emission peak identification. The results are expected to provide spectral profiles of various lamp types.

Keywords: star analyzer 100, spectrum, light pollution

Topic: Instrumentation in Astronomy