A Nova Explosion is Predicted to be Visible This Year

upstart writes:

Scientists are predicting a once-in-a-lifetime nova explosion before September:

A sharp-eyed star gazer in Wyoming might catch a new star in the night sky this spring or summer. Beginning at any time now through the end of September, astronomers are expecting we can see the aftermath of a spectacular celestial event that happened 3,000 years ago.

Astronomers are awaiting a nova from T Coronae Borealis in the Northern Crown constellation, which is located between the constellations of the Bootes and Hercules. A nova is a brief moment when a flash of light from a binary star system shines brightly in the night sky.

The new light is so bright that T Coroane Borealis, ordinarily not visible to the naked eye, can potentially be spotted by Wyomingites. It won't look like much, but it's unusual to experience it from our small spot in the universe.

"Novas are a little subtle compared to supernovas," said Max Gilbraith, the planetarium coordinator for the University of Wyoming Physics and Astronomy Department. "They are called new stars because they will briefly appear as a new light in the sky for a couple of months."

Novas might be called new stars, but that's not what Wyomingites will see when it happens sometime in the next few months. Gilbraith said the bright light of a nova is a "momentary flare" from the outside of a dying star interacting with what's left of the inside of a dead star.

[...] The light of the distant nova will reach Earth sometime in the next seven months. Astronomers won't know for sure until it gets here.

[...] Gilbraith said the nova will have a similar brightness to Polaris, the North Star. People might believe that the North Star is the brightest in the sky, but it doesn't hold a candle to the truth.

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