1 00:00:02,002 --> 00:00:03,503 Hey Vern it s the Equinox! 2 00:00:03,603 --> 00:00:07,173 Thanks for watching Star Gazers -- and March 20 is the Vernal 3 00:00:07,273 --> 00:00:11,011 Equinox -- when our sun is directly over the equator and day and night are equal. 4 00:00:11,111 --> 00:00:13,813 The Vernal Equinox is also known as the First Point of 5 00:00:13,913 --> 00:00:17,650 Aries, because the sun would pass through that constellation at this time of year, 6 00:00:17,751 --> 00:00:23,990 but that s not the case anymore! Now it passes through Pisces! This is because of PRECESSION. 7 00:00:24,090 --> 00:00:29,029 Precession is the wobble of Earth s axis. Like a top, we re flopping back and forth as we spin and 8 00:00:29,129 --> 00:00:34,768 orbit. This wobble causes Earth s rotational axis to trace out a cone in the night sky! Over time, 9 00:00:34,868 --> 00:00:39,272 the stars actually MOVE -- about a pinky on an outstretched arm, every 72 years. 10 00:00:39,372 --> 00:00:43,977 So in 26,000 years Vega will be the North star not Polaris! 11 00:00:44,077 --> 00:00:48,448 Traditional Vernal Equinox celebrations involve celebrations of fertility and spring, 12 00:00:48,548 --> 00:00:52,548 so enjoy yourself this week, and Keep looking up!