According to Eddie Irizarry in the EarthSky on-line news, the comet was initially discovered on December 28, 2019 by astronomers in Hawaii. By mid-March it shined at about the brightness of an 8th-magnitude star. On the magnitude scale, the brightest stars are 1st-magnitude, while those we can barely see with the naked eye are a 6th-magnitude. The dimmer the star, the higher the magnitude number.

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