How does solar eclipse occur?
A solar eclipse occurs when the moon
passes between the sun and the earth. This can only happen when duration new moon. The moon may
partially or entirely block the sun during solar eclipse. At this time, the
shadow of the moon falls on the earth. When the outer shadow or the penumbra of
the moon falls on the earth a partial solar eclipse is witnessed. Partial
eclipses occur when the moon is not completely in line with the sun and the
earth. When the inner shadow or the umbra of the moon falls on the earth a
total solar eclipse occurs. At this time, the moon completely blocks the view
of the sun.
Sometimes when the sun and the moon
are exactly in line the appearance size of the moon is smaller than the sun
does the sun appears as a bright ring or annulus and we witness an annular
eclipse.
Solar eclipse do not occurs very
often, this is primarily because the moon orbit is titled at an angle of 5
degrees. As the moon revols around the earth it is quiet rare for the sun, the
moon, and the earth to fall in straight line.
An eclipse is a natural phenomenon. Nevertheless, in some
ancient and modern cultures, solar eclipses have been attributed
to supernatural causes or regarded as bad omens. A total
solar eclipse can be frightening to people who are
unaware of its astronomical explanation, as the Sun seems
to disappear during the day and the sky darkens in a
matter of minutes. Looking directly at the sun when solar eclipse occurs can
lead eye damage even blindness because of
the intense visible and invisible radiation that the photosphere emits. So we must use any optical aid
like telescope and eclipse glasses when looking solar eclipse.
