NASA says that people in the Northern Hemisphere should be able to see the green comet just before dawn in late January. On January 21, you can see the comet best if the sky is completely dark thanks to a new moon.
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If you don’t live in the Northern Hemisphere, don’t be disillusioned yet because, at the beginning of February, people in the Southern Hemisphere will be able to see the comet again. On February 2, Comet ZTF will get as close to the earth as it will get, which is a distance of roughly 26 million miles. That’s about 109 times farther than the moon usually is, but the comet burns so brightly that it can still be seen in the night sky.
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On January 31 and February 1, the moon will be bright. The Adler Planetarium says that the comet will be the faintest object that can be seen without optical aid in a clear, very dark sky. You’ll have to hope and wish the skies are clear to get a good view of it when it passes.
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At first, you might need a telescope to see Comet ZTF. But as it gets closer to earth, you might be able to see it with binoculars or even just your eyes. NASA wrote in an update on December 29 that comets are notoriously hard to predict. Still, if this one keeps getting brighter as it has been, it will be easy to see with binoculars and might even be visible to the naked eye under dark skies.
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