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James: Welcome to star gazers. I'm James Albury,
And I'm Dean Regas,
And I'm Marlene Hidalgo
Dean; We're here to help you be sure you know what you're seeing
in the night sky when you...
All: look up.
Dean: This Monday March 26th be sure to catch a gorgeous crescent
Moon paying a visit to the brightest planet in the night sky.
James: Watch the Sun set this coming Monday night and as the sky
darkens look for a 4 day old slender crescent moon. It will appear
well before it gets dark. And about two finger widths off to its
right you'll see a bright spot of light in the gathering twilight.
Dean: that's the planet Venus and it will show up well ahead of
any other stars. Now some people might call this the evening star
and might even make a wish upon it but star it is not. It's a
planet and shines by reflecting sunlight. And if you hold the
top of your extended fist on Venus below your fist is another
bright planet, the biggest of all the planets Jupiter.
Marlene: Happy spring of the leaf and happy spring of the year!
because this Tuesday March 20th is official spring of the leaf
day and spring of the year day. Know what I'm talking about? Well,
they're both related to the vernal equinox, which occurs Tuesday
March 20th at 1:14 a.m. Eastern Daylight Time or your local equivalent
which is more commonly known as the very first moment of spring.
But have you ever wondered why we call spring, spring? Well, that
word spring is simply short for the phrases spring of the leaf
and spring of the year. Now spring of the leaf is pretty obvious
because at this time of the year leaves literally do spring up
out of branches and grass springs up out of the ground and that's
why we call spring, spring. But what does spring of the year mean?
Well, believe it or not, before 1752 in England and America the
new year officially began when spring began on March 25th. Or
to put it quite simply the new year sprang up at the same time
the leaves and grass did. In fact, when George Washington and
Ben Franklin were young fellows, they and all the other American
colonists wished each other Happy New Year and happy spring on
the same day on March 25th until English Parliament declared that
beginning in 1752 the new year would no longer begin in March
but would be celebrated on January 1st, a tradition begun by the
Romans in 153 b.c. Most of the rest of Europe had made this change
in the early 1500's. This was a calendar change for political
reasons not having anything to do with nature.
James: So let's not forget, the first day of spring is strictly
speaking an astronomical event, which celebrates one of the two
days when our Sun is smack dab on the celestial equator, the other
day being the first day of autumn. When this happens in September
we call it the autumnal equinox and when it happens in March we
call it the vernal equinox. And these are the only two days of
the year when the Sun rises exactly due east and sets due west.
Marlene: Now although most people today don't keep track of the
Sun and its movements throughout the seasons like our ancestors
did, nevertheless it's a lot of fun to watch the Sun change its
place on the horizon every day from equinox to equinox. In fact,
starting this week, if you make note of where the Sun rises and
sets on the horizon each day using landmarks like trees or buildings
for guides you will notice that the Sun will rise just a little
bit farther north of east each successive day and will set a little
bit farther north of west each successive day and that it will
continue moving northward week after week until June 20th, the
first day of summer, the day of the summer solstice when it will
rise its farthest north of east and set its farthest north of
west after which it will start to move southward week after week
until once again it will rise due east and set due west on the
autumnal equinox, the first day of autumn in September. So happy
spring of the leaf and happy old fashioned New Year!
All 3: keep looking up!
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James: Watch the Sun set this coming Monday
night and look above it for a slender crescent moon. And off to
its right you'll see a bright spot of light.
Dean: That's the planet Venus. If you hold the top of your extended
fist on Venus, below your fist is another bright planet, the biggest
of all the planets Jupiter.
Marlene: Tuesday March 20th, spring officially began. But the
first day of spring is an astronomical event, which celebrates
one of the two days each year when our Sun is smack dab on the
celestial equator, the other day being the first day of autumn.
When this happens in September we call it the autumnal equinox
and when it happens in March we call it the vernal equinox. But
do you know why we call spring, spring? Well, spring is simply
short for the phrase, "spring of the leaf". Spring of
the leaf is obvious because leaves do literally spring up out
of branches at this time. So happy spring and
All: Keep looking up!
How did you like this episode?
Please give us your comments. (Click
Here)
* This week's Sky At A Glance and Planet Roundup
from Sky & Telescope.
This week's Sky At A Glance displays current week only.
Starry Night 6 was used to produce this episode
of Star Gazer