Results 31 to 40 of about 2,188 (203)
The moon phases influence on the beginning of astronomical dawn determination in Yogyakarta
International Journal of Science and Applied Science: Conference Series, 2017 In astronomy, there are three types of dawn. They are astronomical, nautical, and civil dawn. The sunlight is starting to appear on the east horizon when the Sun altitude is 18o below the horizon. Hence, there is a change on the sky brightness.
Abu Yazid Raisal +3 more
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Laboratory Characterisation of a Commercial RGB CMOS Camera for Measuring Night Sky Brightness
Remote Sensing, 2023 The use of RGB cameras in photometric applications has grown over the last few decades in many fields such as industrial applications, light engineering and the analysis of the quality of the night sky.
Pietro Fiorentin +3 more
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Night-Time Skyglow Dynamics during the COVID-19 Epidemic in Guangbutun Region of Wuhan City
Remote Sensing, 2022 The COVID-19 epidemic lockdown has a direct influence on urban socioeconomic activity, including night-time light (NTL) changes. Night-time skyglow, a form of light pollution caused by NTL, is also affected by public emergencies. Here we investigated the
Chengen Li, Xi Li, Changjun Zhu
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Sky brightness measurements for different environmental conditions by the example of St. Petersburg
SHS Web of Conferences, 2018 St. Petersburg is unique place in Russia with an environmental phenomenon called “white nights” during summertime: sky brightness levels are influenced mostly by environmental conditions.
Kolgushkina Svetlana
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THE DEVELOPMENT AND VALIDATION OF A TACTICAL GRADE EGI SYSTEM FOR LAND VEHICULAR NAVIGATION APPLICATIONS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Over recent years, the utilization of commercially available integrated navigation systems for the development of navigation algorithms has become increasingly commonplace.
Y.-E. Huang +6 more
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Light pollution in the Tatra National Park [PDF]
Archives of Environmental ProtectionLight pollution in the form of artificial sky glow affects not only the immediate surroundings of the towns that generate it but also more distant areas, including protected regions. This study examines the extent of the impact of the artificial sky glow,
Tomasz Ściężor +2 more
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Measurements of sky brightness at Bosscha Observatory, Indonesia
Heliyon, 2020 To determine the level of light pollution due to human activities, we performed sky-brightness measurements at Bosscha Observatory, Indonesia (107°36′E; 6°49′S, 1300 m above sea level) for seven years from 2011 to 2018, using a portable photometer ...
D. Herdiwijaya +7 more
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Wahana Fisika: Jurnal Penelitian Fisika dan Terapannya, 2023 Sebagai tempat pengamatan astronomi, Observatorium Ilmu Falak Universitas Muhammadiyah Sumatera Utara (OIF UMSU) membutuhkan kualitas langit malam yang bebas dari polusi cahaya.
Arwin Juli Rakhmadi +3 more
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Calibrating Nighttime Satellite Imagery with Red Photometer Networks
Remote Sensing, 2023 The data retrieved from satellite imagery and ground-based photometers are the two main sources of information on light pollution and are thus the two main tools for tackling the problem of artificial light pollution at night (ALAN). While satellite data
Borja Fernandez-Ruiz +5 more
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BioResources, 2016 This paper explores the potential of wood for improving environmental quality in interior spaces. In northern climate cities where overcast skies predominate, interior spaces may appear gloomy or dull, since natural light is white and uniform ...
Hoda Jafarian +3 more
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