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Moon Passes Within Half-Degree of Antares in Tonight’s Sky

Viewers can see a 93% illuminated moon near the heart of Scorpius without a telescope shortly after sunset.

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Look south this evening after sunset to catch the Moon hanging with ruby-red Antares. Then, compare the star’s hue to that of Mars in the west. Credit: Stellarium/USGS/Celestia/Clementine

Overview

  • At 2 P.M. EDT on July 7 the moon made its closest apparent pass 0.4° south of Antares and remains under half a degree from the star this evening.
  • The waxing gibbous moon is about 93% illuminated, providing a bright frame for the red supergiant as twilight fades.
  • Antares shines at magnitude 1.1, sits roughly 550 light-years away and is known as the heart of Scorpius and the mythological rival of Mars.
  • Skywatchers need only a clear view of the southeastern to southern horizon shortly after sunset to observe the pairing with the naked eye.
  • The moon lies about 248,000 miles from Earth, underscoring the immense gulf between lunar and stellar distances.