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Eye on the Night Sky

Eye on the Night Sky

June 15, 2021

Nightly Events

  • Tonight:

    As twilight deepens from 9:30 to 10 o'clock, look for a widening Crescent Moon making its monthly visit to the star Regulus, the brightest star in the constellation Leo, the Lion. Regulus appears to the Moon's lower left, about one third of the way above a low and level western horizon, not setting until after midnight.

  • June 16:

    High in the south is brilliant star Arcturus, discovered by Sir Edmund Halley (of comet fame), to have changed its position since ancient times. This demonstrated that all stars are in motion around the center of our galaxy, though at distances so great, that the constellations look the same for thousands of years.

  • June 17:

    The star Antares, the “heart” of Scorpio, the Scorpion, is due south at 11:30 PM, shimmering a bright orangish-red. Antares was one of the four Royal Stars in Persian astronomy, marking the position of the Sun at the beginning of autumn thousands of years ago. Well to its left, similar in brightness but appearing a pale yellow, is the planet Saturn.