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Birthday · December 24, 2022

Comet 2022 E3 (ZTF)

December 24, 2022

Some stars end in silence, some in fire, and some leave behind the raw materials for birthdays.

Comet 2022 E3 (ZTF)

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APOD published December 24, 2022. Credit: Dan Bartlett. A publication-date match, not a photo taken on your date. Independent of NASA.

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Comet 2022 E3 (ZTF)

Original APOD · December 24, 2022

Comet C/2022 E3 (ZTF) was discovered by astronomers using the wide-field survey camera at the Zwicky Transient Facility this year in early March. Since then the new long-period comet has brightened substantially and is now sweeping across the northern constellation Corona Borealis in predawn skies. It's still too dim to see without a telescope though. But this fine telescopic image from December 19 does show the comet's brighter greenish coma, short broad dust tail, and long faint ion tail stretching across a 2.5 degree wide field-of-view. On a voyage through the inner Solar System comet 2022 E3 will be at perihelion, its closest to the Sun, in the new year on January 12 and at perigee, its closest to our fair planet, on February 1. The brightness of comets is notoriously unpredictable, but by then C/2022 E3 (ZTF) could become only just visible to the eye in dark night skies.

Image credit: Dan Bartlett

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