How to Watch Saturday’s Solar Eclipse


A rad moon’s on the rise. Early on October 14, our lunar satellite will briefly hover before the sun, obscuring the dawn and immersing millions of people in a strange morning gloom. But this annular eclipse will not be total: Since the moon’s traveling at the more distant part of its orbit, it won’t block the entire sun. Instead, it will create a glowing orange outer ring.

With all of our Earthly concerns, it’s easy to forget about cosmic mechanics, especially how fast our planet and the moon move through their orbits. People turning their eyes (and protective glasses) to the skies will behold the rare “ring of fire” spectacle for a fleeting four to five minutes. That moment, called “maximum annularity,” comes from the mathematical term “annular,” which means “forming a ring.” Partial covering will last up to three hours.

“We’re all moving: The Earth’s moving, the moon’s moving, and even the sun’s moving. It’s exciting to get a real vision of the motions,” says Bruce Betts, chief scientist of the Planetary Society, a nonprofit promoting space exploration. As the moon drifts into the sun’s path on Saturday, more than 95 percent of the sun will be covered, he says. The 4 to 5 percent that will remain visible is part of the chromosphere, or its lower atmosphere. In contrast, during total eclipses, which happen less often, the moon blocks the entire sun, making only the sun’s wispy corona briefly visible. 

The path of annularity will first pass through southern Oregon and northern Nevada, with the partial eclipse phase beginning at 8:06 am Pacific time. The ring of fire will be most visible in those areas at about 9:20 am. Southern Utah and central New Mexico come next, with maximum annularity happening at about 10:30 am Mountain time. The ring should be observable in southern Texas at 11:50 am Central time.

After that, residents of southeastern Mexico, Honduras, Nicaragua, and then Colombia and northern Brazil will be in view of the event. 

People near the path—but not exactly beneath it—can still witness a partial ring of fire. Watchers in Las Vegas, Phoenix, Denver, and Houston will see an 80 percent eclipse, meaning that the sun will be mostly covered. Of course, all viewings depend on pesky clouds staying out of the way. (See NASA’s and Sky & Telescope’s websites for more details about viewing times and locations.)



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