• Vernal Equinox

    The March equinox marks the beginning of astronomical spring and the end of astronomical winter in the Northern Hemisphere.

  • Eta-Aquariid Meteor Shower

    The Eta Aquariids are a strong shower when viewed from the southern tropics. From the equator northward, they usually only produce medium rates of 10-30 per hour just before dawn. Activity is good for a week centered the night of maximum activity. These are swift meteors that produce a high percentage of persistent trains, but […]

  • Conjunction of Uranus & the Sun

    Uranus will pass close to the Sun in the sky as its orbit carries it around the far side of the solar system from the Earth.

  • Summer Solstice

    The summer solstice is the day when the Sun appears to reach its highest point in the sky during the year - it marks the start of summer in the Northern Hemisphere.

  • International Asteroid Day

    International Asteroid Day is a United Nations-recognized day observed each year on the anniversary of the Tunguska impact event of June 30, 1908.

  • Earth at Aphelion

    Earth will be at the farthest point in its orbit around the Sun on this date

  • Mercury 3.2°S of Moon

    Mercury will appear close to the crescent Moon in the west-northwestern sky before sunset.

  • Perseids Meteor Shower

    The Perseids are the most popular meteor shower as they peak on warm August nights as seen from the northern hemisphere. The Perseids are active from July 17 to August 24, peaking on August 12 - 13.

  • Autumnal Equinox

    Fall begins with the autumnal equinox - in the Northern Hemisphere, it's the September equinox; in the Southern Hemisphere, it is the equinox in March.