Whatâs Up For August 2018?
The summer Perseids are here!Â
The Perseid meteor shower is the best of the year! It peaks on a Moonless summer night from 4 p.m. EST on August 12 until 4 a.m. EST on August 13.
Because the new Moon falls near the peak night, the days before and after the peak will also provide nice, dark skies. Your best window of observation is from a few hours after twilight until dawn, on the days surrounding the peak.
Unlike most meteor showers, which have a short peak of high meteor rates, the Perseids have a very broad peak, as Earth takes more than three weeks to plow through the wide trail of cometary dust from comet Swift-Tuttle.
The Perseids appear to radiate from the constellation Perseus, visible in the northern sky soon after sunset this time of year. Observers in mid-northern latitudes will have the best views.
You should be able to see some meteors from July 17 to August 24, with the rates increasing during the weeks before August 12 and decreasing after August 13.
Observers should be able to see between 60 and 70 per hour at the peak. Remember, you donât have to look directly at the constellation to see them. You can look anywhere you want to-even directly overhead.
Meteor showers like the Perseids are caused by streams of meteoroids hitting Earthâs atmosphere. The particles were once part of their parent comet-or, in some cases, from an asteroid.
The parade of planets Venus, Jupiter, Saturn and Marsâand the Milky Way continue to grace the evening sky, keeping you and the mosquitoes company while you hunt for meteors.
Watch the full Whatâs Up for August Video:Â
There are so many sights to see in the sky. To stay informed, subscribe to our Whatâs Up video series on Facebook.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
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