Sky Tonight—March 20, The 2011 March equinox
The equinox represents a point on Earth’s orbit, but it is also an event that happens on the imaginary dome of Earth’s sky.
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The equinox represents a point on Earth’s orbit, but it is also an event that happens on the imaginary dome of Earth’s sky.
Why does the Full Harvest Moon in particular – the full moon closest to the autumn equinox – bring about dusk-till-dawn moonlight for several nights in succession?
September 2010 presents the only time in your lifetime that you will be able to witness the moon and Jupiter’s simultaneous all-night appearance on the equinox
The fastest sunsets (and sunrises) occur at or near the equinoxes.
The March equinox marks that special moment when the sun crosses celestial equator, going from south to north. It happens today at 17:32 Universal Time, or 11:32 p.m. Mountain Daylight…