Correspondents observing the eclipse in Igbogbo area of Ikorodu, Lagos reports that the highest point of the occurrence was around 8.00 am to 8:45 am , when the cloud was very thick.
But it started around 7:15am with the emission of a very sparkling radiation coming out of a dim sky.
Around 8 to 8:45 am, it became very cloudy, accompanied by light thunderstorm. That could be the highest point of the eclipse.
The cloudy atmosphere vanished around 8:50 am, back to the the emission of sparkling radiation , as it was when it started.
It will be recalled that a geographer, Dr. Nasiru Idris , of the Nasarawa State University, Keffi had told Radio Nigeria that due to the cloudy weather as a result of rainfall in the country, Nigerians would not be able to clearly see the eclipse.
Theory
From Wikipedia:
Geometry of full solar eclipse |
If the Moon were in a perfectly circular orbit, a little closer to the Earth, and in the same orbital plane, there would be total solar eclipses every month. However, the Moon's orbit is inclined (tilted) at more than 5 degrees to the Earth's orbit around the Sun (see ecliptic), so its shadow at new moon usually misses Earth.
Earth's orbit is called the ecliptic plane as the Moon's orbit must cross this plane in order for an eclipse (both solar as well as lunar) to occur. In addition, the Moon's actual orbit is elliptical, often taking it far enough away from Earth that its apparent size is not large enough to block the Sun totally. The orbital planes cross each other at a line of nodes resulting in at least two, and up to five, solar eclipses occurring each year; no more than two of which can be total eclipses.
However, total solar eclipses are rare at any particular location because totality exists only along a narrow path on the Earth's surface traced by the Moon's shadow or umbra.
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.
Geometry of all solar eclipses |
No comments:
Post a Comment