The big cities are shining and
appear magnificent in the nights with their lights. These bright city lights
come from the lightining of the public arenas, streetlights, advertisings,
outdoor lightings and commercial lightings. This magnificent view arises from
the inappropriate and excessive use of artificial light. This is called light pollution. We need
grounds with darkness, moisture free, without light and air pollution to
observe weak lights coming from stars. Surveying of this weak light which comes
from celestial bodies depends on to have observatories without light pollution
along with our technological capabilities.
In this work, the night sky brightness at the Ege University Observatory
is measured. The sky brightness is measured as approximately 19 magnitude at all
azimuth for zenith angle z < 60° in the year 2010. It is
determined that the increment of the sky brightness becomes 0.4, 0.8 and 0.25
magnitudes at azimuth angle 240°
< a < 270°,
270°
< a < 360°
and 0°
< a < 30°
, respectively, for zenith angle 35° < z
< 60°,
in the year 2017. This increment of the sky brightness causes the decrease of
the observation period about 1.5 hours. The measurements point out that the
light pollution increases rapidly at the Ege University Observatory and hence
astronomical observations is restricted.
Primary Language | Turkish |
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Subjects | Engineering |
Journal Section | Makaleler |
Authors | |
Publication Date | December 30, 2018 |
Published in Issue | Year 2018 |