The Stages Of A Solar Eclipse

It takes about an hour and a half for the dark disk of the Moon to cover the bright disk of the Sun (below). Totality, or total eclipsing of the Sun (right), usually lasts for two to three minutes, but it can last up to 7 minutes 30 seconds. The Sun's outer halo, its corona, can then be viewed.

Earth new moon observing the sun the sun should never be observed directly by naked eye or with any instrument, as its intense light can damage eyes. Astronomers adopt two methods to observe the sun with instruments. the protection method uses, for instance, filters to block harmful rays. the projection method (the image is projected onto a screen) is safer, because it does not mean looking at the sun.

viewing card eyepiece lens gently until image is sharp

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