Analisis kondisi parameter atmosfer dan geografis observatorium astronomi Sunan Ampel Surabaya
Abstract
As an observatory located in the middle of the city and surrounded by tall buildings, OASA needs to really pay attention to the atmospheric and geographical conditions in its surroundings, with the aim of determining the focus and direction of future development of the observatory. This research examines the conditions of atmospheric parameters around the observatory which include seeing, extinction and sky brightness based on the results of night sky observations. This research also reviews geographical conditions related to the location and topography of OASA as an observatory. Based on observations made on July 21 2023 using the stars Arcturus and Tarazed, the visible value of the atmosphere around OASA is 1.8 arc seconds, with extinction coefficient and sky brightness values of 0.3 and 17.83 MPSAS. The results of this research show that OASA has poor atmospheric quality, especially in the area around the horizon which shows a decrease in the quality of the appearance of celestial objects as they approach the horizon. Apart from that, geographically OASA also has many obstacles around it. horizon, especially on the western horizon at an azimuth position of 277° to 300°, which makes OASA less supportive of the rukyatul hilal observation process.
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References
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