A photo of comet C/2022 E3 ZTF taken on Dec. 26, 2022 in Payson, Arizona by Chris Schur.

A rare green comet is approaching the sun. How to watch it live tonight (January 12th).

A comet that has not been to Earth or the inner solar system since the last ice age will make its closest approach to the sun tonight (January 12) and you can watch it live online in a free webcast.

The comet, designated C/2022 E3 (ZTF), will come within about 100 million miles (160 million km) from the sun when it reaches its closest point, called perihelion. The comet will then move toward Earth to approach our planet, perihelion, on February 2 when it will pass us at a distance of 26 million miles (42 million kilometers).

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