Showing posts with label Arcturus. Show all posts
Showing posts with label Arcturus. Show all posts

Friday, May 10, 2013

BOOTES and the PLOW

You may have noticed a lone bright star in the east after sunset. This is Arcturus, the brightest star in the constellation Boötes. This kite-shaped constellation first appears in the spring sky looking like a wide tie hanging from the invisible neck of an invisible businessman. Boötes is no yuppie bustling through traffic but a Herdsman, Bear-Driver, or Inventor of the Plow.

First let's talk about how to pronounce this constellation. It is a 3-syllable name; "Bo-oh-teez," not "Boots," and please never call him, "Booties."

One myth portrays Boötes as an inventive man who overcomes adversity. Once upon a time Bootes was walking through the woods - on his way to grandma’s house - when he was robbed by his brother. Not only that, when he returned home, he discovered that his good-for-nothing, thief-brother had taken possession of everything he owned. House. Land. Wife. Everything. Undaunted, Bootes finds a new place to live but is dead broke. He can’t rub one nickel together. As a poor farmer, he invents a plow that can be pulled by oxen. His invention spreads around the globe, and after patenting it, Bootes can afford anything. This story fits in extremely well with the old English view of the Big Dipper as a Big Plow. Boötes can be seen right behind the plow pushing it around the pole.

The easiest way to find Boötes is to find his brightest star, Arcturus. Nothing could be easier. First, find the handle of the Big Dipper and use it as a pointer. Follow the arc of the handle and continue this arc until you run into Arcturus. Remember the catchy saying, "Follow the arc to Arcturus," and you'll find Boötes.



This is Boötes as a Herdsman with his dogs. Next time I may tell you about the mop of hair under the dogs in this picture.
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Monday, April 30, 2012

IT'S SATURN SEASON

Right click on this and open in a new window and try to find the Earth!

The rings of Saturn are open for business.  As we head into May, the plane, its 170,000 mile-diameter ring system, and multitude of moons are back in prime-time for you to see this month.

You don’t need a telescope to find Saturn.  It shines like a steady, yellow “star” in the southeast near a blue star called Spica.  Here's how you find it:

First find the Big Dipper high in the northeastern sky.  Connect an arc through the handle stars of the Big Dipper and continue that arc to a really bright star called Arcturus ("Follow the Arc to Arcturus!").  Then keep going in a straighter line along the horizon and bingo you'll find Saturn and Spica ("Speed on to Saturn").

A Saturnian Storm
Now to see the rings, you’ll need to look through a good telescope.  Then you can witness the opening season of the solar system’s greatest wonder.  You can see the planet, the rings, the shadow of the rings, the gaps in the rings, the moons... Okay, I'm getting a little excited here, but this is the best planet ever.  When I first saw Saturn in a telescope it changed my life.  There it sat, a perfect cartoon-planet in a sea of blackness.  I knew then that I was destined to be an astronomer.  Check it out tonight!
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