Every year in late July and early August, two meteor showers happen together. One is the Delta Aquarid shower, which has a nominal peak in late July but actually rambles along pretty steadily from late July through mid-August. The other is the famous Perseid meteor shower, which always peaks around August 11-13.
Both of these showers are best between midnight and dawn, when, in late July of 2013, the moon is up, casting its light in the sky and drowning fainter meteors in its glare.
This year, the absolute best time for watching meteors won’t come until the moon wanes enough to leave the morning sky free of its light. That’ll start around the first week of August, when the moon is a slim crescent in the predawn sky. New moon (moon crossing sky with sun during day) is August 6. Afterwards, the moon will be back in the evening sky, and the midnight-to-dawn sky will be free of meteors.
People are already seeing meteors, though. Definitely start watching in late July. Best time to watch in 2013 … early to mid-August!
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