Monthly Night Sky information provided by Chris Vaughan (@Astrogeoguy) at Starry Night Education (@StarryNightEdu).

Astronomical Events

Events

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Today
  • Moon Crosses the Pleiades

    On Friday evening, December 13, the orbital motion of the bright, nearly full moon will carry it through the Pleiades star cluster (aka Messier 45, Subaru, and the Seven Sisters)…

  • Bright Moon Joins Jupiter

    Shortly after the very bright moon clears the rooftops in the east after dusk on Saturday, December 14, the brilliant planet Jupiter will rise to join it. The duo will…

  • Full Oak Moon

    The December full moon will occur at 4:02 a.m. EST, 1:02 a.m. PST, or 09:02 GMT on Sunday, December 15. Traditionally known as the Oak Moon, Cold Moon, and Long…

  • Bright Moon between the Twins

    Look low in the eastern sky after dusk on Monday, December 16 to see the bright, waning gibbous moon gleaming just to the right (or celestial southwest) of Gemini’s brightest…

  • Moon Moves toward Mars

    On Tuesday evening, December 17, the bright, 90%-illuminated moon will shine a short distance above (or celestial WNW of) the prominent reddish dot of Mars. The moon and the reddish…