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Williams Astronomy Professor Heading to India for Annular Eclipse

According to Pasachoff, the moon will be a little farther from Earth than average, so it will not completely cover the sun's bright disk, leaving a ring known as an annulus of bright everyday sunlight. Though up to 93 percent of the sun will be covered, to see this "annular eclipse" safely, people should still use special solar-safe filters or look at projected images.