Wednesday, October 18, 2017

Two percent moon and Venus

There are twelve major meteor showers during the year.  Over this weekend is the Orionids.  As the name suggests they look like they originate from the constellation Orion which you can find high in the southern sky in the morning.   This shower is caused by Halley's comet.  Comets leave a dusty trail that remains long after the comet has come and gone.  Yearly, as the Earth crosses the comet's orbit, our gravity pulls in some of the dust and we see the bits and pieces burn up  when they enter our atmosphere. The comet Halley returns every 75 years (or so) and refreshes that section of space w/ more dust so the Orionids are a regular display.  Try to get out and look for them this year - the moon will still be just a sliver so it shouldn't ruin the show.

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