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News for Norther Colorado and the world

Friday, July 25, 2014

Earthsky Tonight—July 22, Shaula and Lesath near the moon

Courtesy of EarthSky
A Clear Voice for Science
www.EarthSky.org

phase July 22 Earthsky Tonight—July 22, Shaula and Lesath near the moon10july22 430 300x300 Earthsky Tonight—July 22, Shaula and Lesath near the moonIf you can see Antares and the moon – and if your sky is unobstructed in the direction toward the southern horizon – you might be able to pick out a graceful looping stream of stars, despite the moonlit glare. These stars represent the Scorpion’s curved Tail. They are the reason Scorpius has been identified as a Scorpion by stargazers.

Now notice two stars in the Scorpion’s Tail, Shaula and Lesath. Together, these two represent the Scorpion’s Stinger. These two stars, so close together on our sky’s dome, give the impression of being physically bound. But they are not. They lie at different distances from Earth, with Shaula some 350 light-years away and Lesath about 500 light-years away.

After the moon drops out of the sky in late July and early August, look at the Scorpion in all his starlit majesty! In a dark country sky, you will have no trouble seeing the Scorpion’s J-shaped loop of stars and the two stinger stars, Shaula and Lesath.

Written by Deborah Byrd


Astronomy Picture of the Day from NASA/JPL

CHANDRA Photo Album

U.S. Naval Observator Astronomical Information center

StarDate Online

Sky and Telescope

National Geographic

Space Com

Amazing Space

The York County Astronomical Society

Scope City

James S McDonnell Planetarium

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