delta Aquarids July 23 to Aug 1 July 28 7 days 20 22:36 -17 degrees This show is considered "the greatest" in total numbers, but since it is stretched out for so many days (actually going from July 15 to August 29), it is far less spectacular than the more condensed ones. Comprised mainly of fainter, slower meteors, the delta Aquarids are actually made up of several meteor streams.