During this period the moon reaches its last quarter phase on Tuesday July 26th. At this time the moon will lie 90 degrees west of the sun and will rise near midnight local summer time (LST) as seen from mid-northern latitudes. This weekend the waning gibbous moon will rise during the late evening hours and will obscure all but the brighter meteors. Conditions for viewing the meteor activity improve with each passing night as the moon's phase lessens and the moon rises later each morning. The estimated total hourly meteor rates for evening observers this week is near 4 for observers located in the northern hemisphere and 3 for observers located in tropical southern locations (25S).
During this period the moon reaches its full phase on Tuesday July 19th. At this time the moon will lie opposite the sun and will lie above the horizon all night long. With the bright lunar glare present most of the night this week, this will be the least favorable time to try and view meteor activity this month. The estimated total hourly meteor rates for evening observers this week is near 2 no matter your location. For morning observers the estimated total hourly rates should be near 16 for those located at mid-northern latitudes and 13 for observers located in tropical southern locations (25S). Rates are reduced this week due to moonlight.