
1) Annual celestial display 2) August meteor shower 3) August shower 4) July event 5) Meteor shower
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https://www.crosswordclues.com/clue/perseids

The Perseids z are a prolific meteor shower associated with the comet Swift–Tuttle. The Perseids are so called because the point from which they appear to come, called the radiant, lies in the constellation Perseus. The name derives in part from the word Perseides (Περσείδες), a term found in Greek mythology referring to the sons of Per...
Found on
http://en.wikipedia.org/wiki/Perseids

A major meteor shower visible for a week or so before and after peaking on August 12 each year, the date on which the earth crosses the orbit. The maximum hourly rate is about 70 meteors. They appear to radiate from the constellation Perseus, from which they take their name. This shower is associate...
Found on
http://www.daviddarling.info/encyclopedia/P/Perseids.html

Meteor shower. Most active day is Aug.12. Rich, consistent shower. Swift, bright trains.
Found on
http://www.encyclo.co.uk/local/20448
No exact match found.