The new moon rises on Tuesday, Oct. 21, a day that also marks the peak of the Orionid meteor shower. Fog permitting, this shower may be seen in the eastern sky by 9 p.m., with about 20 meteors an hour. To find the radiant point of the shower—where the meteors originate—look for the three stars close together in the belt of Orion.

The spritz of rain combined with warm weather has mushrooms popping up and…