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A new celestial visitor - a comet - was discovered by Japanese astronomer Masayuki Iwamoto in late 2018. It'll provide nice opportunities for astrophotographers, as it will pass close to a couple of Messier objects in February 2019. It's a fast-moving comet that will be closest to Earth on February 12, 2019, at around 2:57 p.m. ET (19:57 UTC; translate to your time zone). The celestial visitor will safely pass by Earth at some 28 million miles (45 million km). The comet has been designated C/2018 Y1 (Iwamoto). This comet is fast! Comet C/2018 Y1 (Iwamoto) is traveling through space at the amazing speed of 147,948 miles per hour (238,099 km/h) or 66 km per second, relative to Earth. The best nights for observing the comet (with binoculars and small telescopes) should be on February 11 and 12. Preliminary estimates suggest the newly found comet might reach a brightness or magnitude between 7 and 7.8 , which means it should be easily seen with small telescopes and binoculars. It will...