The corona isn’t the only thing optimistic eclipse chasers will try to see when the moon completely covers the sun over parts of North America next month.
Spectators will have a wee chance of seeing a comet with the naked eye or a standard pair of binoculars during the total solar eclipse on April 8.
Comet 12/P Pons-Brooks, which makes an appearance in the inner solar system every 71 years, will have its closest approach to the sun just two weeks after the eclipse on April 21. The timing of the visit means it could be visible in the temporary twilight that comes with a blocked sun. The key will be whether the comet — a space snowball — will undergo a sudden flare-up called an outburst a day or so before, said Tony Farnham, an astronomer with expertise in comet activity at the University of Maryland.
“Its forecasted brightness is right at the limit of most people’s ability to see that brightness, and that’s in a dark sky,” Farnham told Mashable. But “The thing about this comet is that it has a history of going into outbursts, a couple of which have actually been fairly large.”
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During the eclipse, the moon will cast its shadow across the continent, starting on Mexico’s western coast at 11:07 a.m. PT, according to NASA, arcing from Texas to Maine, entering Canada through Ontario, and exiting on the Atlantic Coast from Newfoundland at 5:16 p.m. NDT. Major U.S. cities in this corridor, known as the “path of totality,” will include Dallas, Indianapolis, and Cleveland.
Totality is a rare opportunity for residents to see the sun’s glowing corona, the outer layer of the sun’s atmosphere, usually swamped out by the much brighter solar surface. The peak moment will last up to four minutes and 28 seconds for the tens of millions of people viewing it in the shadow’s path.
Comets can be spectacular astronomical events in their own right. They are enormous balls of ice, dust, and rock that formed in the outer solar system, left over from the early days of planet formation about 4.6 billion years ago. Their ice starts to disintegrate as they get closer to the sun, converting instantly from a solid to a gas, skipping over the liquid phase. That process creates their signature tails, millions-of-miles-long debris trails of vaporizing material.
Hundreds of years ago, comets were considered bad omens. Today, scientists know these icy bodies as time capsules of the ancient solar system. Some astronomers believe comets brought water and organic compounds — a.k.a. the building blocks of life — to early Earth.
Comet 12/P Pons-Brooks, which makes an appearance in the inner solar system every 71 years, will have its closest approach to the sun just two weeks after the eclipse on April 21.
Credit: Dan Bartlett
In the months leading up to April 8, eclipse cartographer Michael Zeiler has already mentally begun planning out
Oral Surgeon at Norton Implants
5moAm planning to be just outside of Kerville TX bang on the centre line. Let’s just hope the cloud clears. My eVscope made it all the way from London via NY safe and sound!!