Observing

Why do eclipses happen?

Solar eclipses are relatively rare; they happen when the Moon moves directly and precisely in front of the Sun. Why are they so infrequent, and why do solar eclipses always come in pairs with lunar eclipses?

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Visualising the 9 March total solar eclipse

The total solar eclipse of Wednesday, 9 March 2016 is of relatively long duration — 4m 9s at greatest eclipse — which occurs at 1:57 UT. Totality is visible from Sumatra, Borneo, Sulawesi and the North Pacific Ocean, while the partial phases can be seen from East Asia, Australia and the Pacific Ocean. See the event unfold in these new NASA timelapse visualisations.

Eclipse

Why do eclipses happen?

Solar eclipses are relatively rare; they happen when the Moon moves directly and precisely in front of the Sun. Why are they so infrequent, and why do solar eclipses always come in pairs with lunar eclipses?

Uncategorized

Get ready for the eclipse!

This Friday a stunning partial eclipse of the Sun will take place over the British Isles, while just a few hundred miles north the Sun will plunge into totality. Eclipse chaser Nick James describes what you can expect to see, and how to image it.