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

Astronomical Events

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Today
  • 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…

  • Watch Algol Brighten

    The star Algol in the constellation of Perseus represents the glowing eye of Medusa from Greek mythology. Also designated Beta Persei, it is among the most accessible variable stars for…

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