Mercury at Greatest Western Elongation
On the mornings surrounding Wednesday, December 25, Mercury will reach its widest angle of 22° west of the sun, and peak visibility, for its current morning apparition. Starting around 5:45…
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Monthly Night Sky information provided by Chris Vaughan (@Astrogeoguy) at Starry Night Education (@StarryNightEdu).
Astronomical Events
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Night’s Brightest Star
Sirius, the brightest star in Canis Major and in the entire night sky, too, is hard to miss once it clears the trees and rooftops in the southeast by 7:30…
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Earthshine Moon with Antares and Mercury
If the weather forecast calls for clear skies to the southeast on Saturday morning, December 28, it will be worth venturing outside around breakfast time to see the pretty spectacle…
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Second New Moon of December
The moon cycles through its phases every 29.5 days, allowing a phase to repeat if it first occurs early in a calendar month. For the second time in December, the…
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The Pleiades (all night)
In the evening during early January, the prominent open star cluster known as the Pleiades, the Seven Sisters and Messier 45, is climbing the southeastern sky. The stars of its…
