Punxsutawney Phil emerged from his burrow and saw his shadow, banishing the green comet from the night sky for 50,000 years.
Okay, okay, that’s not what happened. But as the groundhog poked his head out on Feb. 2, a comet dragging a millions-of-miles-long tail through space was in the midst of its closest pass by Earth since the Stone Age, according to NASA astronomers. And it’s unlikely to return for another 50 millenia or more.
Either way, folks, it’s going to be a long winter.
NASA’s Hubble confirms largest comet ever seen
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The harmless comet, discovered last March(Opens in a new window) in Jupiter’s orbit, is a bright ball of ice, dust, and rock. Hundreds of years ago, comets were considered bad omens, much like the darkened silhouette of an overgrown Pennsylvania rodent. Legend holds that Pope Callixtus III excommunicated Halley’s Comet in 1456 as an “instrument of the devil,”(Opens in a new window) though a Catholic priest disputed that as myth in a 1908 article(Opens in a new window) published in Popular Astronomy.
Scientists today know these glacial objects as ancient relics of the solar system, leftover from the early days when planets around Earth were just forming. In that regard, they’re 4.5 billion-year-old time capsules of creation.
The dirty snowball was officially dubbed C/2022 E3 (ZTF) by the Minor Planet Center(Opens in a new window). It gets its color from carbon in the gas cloud surrounding its head. That emerald hue is only visible with a camera, such as in the photo above snapped by Northwestern University graduate student Imran Sultan(Opens in a new window), who is studying astrophysics. His images [another below] showcase the comet’s greenish orb, stubby dust tail, and long, faint gas tail.
The green comet
Credit: Imran Sultan / Northwestern University
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Astronomers have described the comet as “close” because of the potential to see it with the naked eye or binoculars, depending on weather and light pollution, but space is a big place. It is still about 26 million miles away(Opens in a new window) and not a threat to Earth.
Stargazers should still be able to catch a glimpse of the comet for the next few days(Opens in a new window) by looking toward the North Star with a good pair of binoculars under dark skies, according to the European Space Agency. Without a camera, it won’t look green but fuzzy and colorless, the agency said.
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By the weekend, around Feb. 4, people in the Southern Hemisphere should be able to view the flying iceberg, too. Astronomers recommend checking for it on Friday, Feb. 10, when it will be near Mars, an easy celestial guidepost.
The comet isn’t nearly as spectacular as NEOWISE(Opens in a new window) was back in 2020, the brightest comet to come this way since Hale-Bopp(Opens in a new window) in the 1990s. But in an explanatory video(Opens in a new window), Preston Dyches from NASA’s Jet Propulsion Laboratory said it was worth watching.
“It’s still an awesome opportunity to make a personal connection with an icy visitor from the distant outer solar system,” he said.
#green #comet #zip #sky #catch #glimpse
