The new moon of Jan. 21 is at perigee, its closest point to earth. This causes some extreme morning daylight high tides, peaking at 7.2 feet on Jan. 21 around 9:30 a.m. A special feature in the night sky will be the passage of comet Gibbs on Jan. 30 and the comet Macholz on Jan. 31, both . . .

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