This post will also be found in Tehachapi's The Loop Newspaper.
Not “annual”. Annular. Though we
get both words from the Latin, annual means yearly, annular means in
the form of a ring.
Solar eclipses occur when the Moon
moves between the Earth and Sun blocking out the Sun for a brief
period of time. As a side note, solar eclipses can only occur during
a “new” moon. Which makes sense since the side facing us can't be
getting any sunlight.
When the Moon completely blocks out
the Sun we have a total eclipse. This happens because the orbit of
the Moon places it directly between the Sun and Earth. So total
eclipses are more rare than partial eclipses, which occur when the
Moon merely blocks out part of the Sun.
But this May (May 20th to
be exact) we're going to have a partial total eclipse. OK, I made
that term up. What we're going to have is an “annular” eclipse.
These occur when the Moon is correctly positioned for a total
eclipse, but due to variations in the orbit of the Moon, it is a
little further away from the Earth. Since it is further away it
blocks less of the Sun. So there will be a ring of the Sun still
visible when the Moon is directly between the Sun and Earth.
But like all solar eclipses, you won't
be able to see it from just anywhere. We won't be able to see it from
Tehachapi. (Darn.) However, we're in luck this time. Northern
California is in line to see this eclipse. Eureka and Redding are
pretty close to the centerline for this eclipse. As are Lake Tahoe
and Reno.
Depending on the weather there should
be come good opportunities to see this annular eclipse up north.
Given the how cloudy and rainy it can be along the coast, that might
not be the best choice. But somewhere along the line from Eureka to
Reno, there should be some good spots to watch the eclipse.
So if you decide to go, to Redding,
then the annular part of the eclipse will start about 6:26 pm PDT
and will last about 4 and a half minutes. If you pick Reno, then
you'll have about the same amount of time with the annular part of
the eclipse starting about 6:31 pm PDT.
Now even total solar eclipses can
still produce eye damaging amounts of light (even when it seems
dark), so watch with care. One of the best, easy ways to watch is to
take two index cards, poke a pinhole through one and use it to
“project” the Sun onto the other card. Otherwise, make sure you
have appropriate solar filters or projecting device. You can get
either with certain telescopes.
Now if you insist on seeing the
eclipse with your naked eyes, unprotected if you will, head out to
West Texas. You'd be able to see the eclipse in Lubbock at sunset.
Stare at the sunset and enjoy the ring. I'm hoping to be able to go
up north to see this eclipse. Maybe I'll see you there.
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