Residents and tourists in Antarctica have a real treat in store today, when the sun goes into one of its rare annular eclipses.
But not even a partial blotting will be visible in Cambridge, the University Observatory announced last night, adding that Harvard wasn't dispatching any polar expeditions because "annular eclipses aren't very interesting"
In an annular eclipse the moon is unusually far from the earth, so that it seems smaller than the full face of the sun.
Professor Bart J. Bok, who is studying South Africa's night skies at the University's Bloemfontein observatory, will be able to see a partial eclipse if he stays up late this afternoon.
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