There are plenty of ways to enjoy Astronomy Day in the Washington, D.C. area, says columnist Greg Redfern.

WASHINGTON -- Today is Astronomy Day in the United States and around the world. Since its inception in 1973 as a means to bring "Astronomy to the People," the day has been very successful in doing just that.

Astronomy Day is established by the lunar cycle so it changes from year to year. This is done to include the moon in telescope viewing when it's most dramatic, without it being so bright that it totally washes out the night sky.

Here in the DMV, we have a wonderful selection of astronomy clubs, colleges and museums that are dedicated to astronomy and space. Astronomy Day is also celebrated in October to take advantage of the changing night sky. October's Astronomy Day is October 4.

The Astronomical League, an organization comprised of more than 240 astronomy clubs and a major force in amateur astronomy, maintains the official Astronomy Day Webpage.

Though May 10 is the official Astronomy Day, related events go on throughout the month. The Northern Virginia Astronomy Club (NOVAC) will host one of the biggest Astronomy Day events in the DMV on May 31, 3 p.m. to 11 p.m. Each year, this has been a real crowd pleaser, as NOVAC goes all out with providing facilities, telescopes and speakers for the general public - especially families - to enjoy. I hope to be there this year with my own telescope.

I will be at George Mason University Observatory(check the website for weather updates)on May 12 to give a presentation on the Chesapeake Bay Impact Crater(CBIC). Afterwards, the Observatory's telescopes will be open to the public for observing.

You can see a monthly listing of DMV astronomy events at the Astronomy in D.C. Web site. This is a very nifty way to keep up on astronomy related events in our area. The site also has a comprehensive listing of resources that you can check to see what's in your area.

The night sky of May (once the clouds clear) has a great planetary lineup and a possible new meteor shower for skywatchers to enjoy.

Jupiter dominates the Western sky as it gets dark; it's the brightest "star" in that part of the sky. Binoculars held steady will show the four main moons of Jupiter. NASA's latest mission to Jupiter, Juno, is en route and will arrive in July 2016.

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Be sure to enjoy Astronomy Day