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A " devil comet " is about to rear its icy green head over Earth — but you ’ll have to await before long to spot it .

On April 21 , the 10.5 - mile - broad ( 17 kilometers ) Comet 12P / Pons - Brooks , also make love as the " devil comet " or " Mother of Dragons comet , " will get hold of its closest detail to the sun — know as perihelion — during which it will be about 144 million land mile ( 232 million klick ) from our whiz .

A bright green comet with a long tail

Comet 12P/Pons-Brooks will reach its peak brightness on April 21.

That position should make the comet importantly brighter and easier to see in the western sky just after sunset . However , at a magnitude of about 5.9 , it may not be seeable to the naked eye . ( The lower the magnitude , the smart the object ; Sirius , the brightest star in Earth ’s Nox sky , shines at a order of magnitude of -1.46 . )

That makesa good telescope , photographic camera ordecent distich of stargazing binocularsessential .

April 21 and a few nights before and after will be the best time to see the comet at its burnished . Observers in northerly latitudes may sputter to see the comet because it will be positioned in the lambency of sundown .

Comet 12P/Pons-Brooks will reach its peak brightness on April 21.

Comet 12P/Pons-Brooks will reach its peak brightness on April 21.

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comet are typically at their brightest and easiest to see when they get through their closest point to Earth . That will hap in June , but by then , the comet ’s flight will mean it will be visible only from the Southern Hemisphere . In any case , straight darkness is backbreaking to come by in the Northern Hemisphere by early June .

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" In spite of the fact that the comet should be undimmed because it is nearest to the sunlight , it is quite distant from us,“Frank Maloney , an associate prof of uranology and astrophysics at Villanova University in Pennsylvania , told Live Science . " comet can exhibit major change in cleverness as the Dominicus warm them , but unless something happens , the comet will be visible only in binoculars or a telescope . "

A photo of a bright green comet in space with a long tail

That could switch if the comet has an gush , which it first did in July 2023 . This get it togrow a pair of demonic horns — hence its soubriquet the " devil comet . " Recent observations have show that the comet no longer sports these horn , likely because the space rock lost the " mountain pass " of ice in its core that made the horns possible , Live Science previously cover .

Side by side images showing the comet brighten and then dim between April 3 and April 10

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