Showing posts with label Stars. Show all posts
Showing posts with label Stars. Show all posts

Sunday, August 12, 2012

August Meteor Showers!

And I can't see them AGAIN this year.  Its all overcast.  I'm a bit conflicted by that.  First, the clouds are there because we got a decent rainfall this evening, and we sure needed THAT!  1 1/4" of rain in the past 2 days, and that's about the best since April.  Second, the temperature dropped to 70 (briefly) during the daylight, and I haven't felt THAT outside for months.

But I love astronomy.  When I moved here 26 years ago, I could occasionally see the milky way, and seeing the constellations was routine.  Over the years, light pollution and general haze has eliminated the milky way from home "seeing" (astronomese for "good viewing) , and it is a rare night when the constellations are clear.  About 2 months ago, I was taking the recycling bins to the street when I realized that the stars were quite visible.  I don't know "why", just one of those things.

I stayed out for an hour just "seeing".  I even noticed one star that shouldn't have been there in a constellation.  I went to the computer to see if there was a new nova star, and discovered it was Jupiter.  So I went back out and looked around a bit.  Sure enough, I found Mars and another planet (Saturn I suppose, because Venus would have been closer to the sun).

It made me think back to a camping trip to Canada in 1980 (or thereabouts).  The first night, the stars shone madly and the milky way was vivid.  The other nights were overcast.  Well, at least I saw that one night.

Can you imagine what the night sky must have looked like "only" a few centuries ago?  Absolutely ablaze with stars!  No wonder our ancestors saw images among them, there were SO MANY more stars visible.  I envy that so much.

But to get back to the beginning (meteor showers, remember?), tonight was the night to see the Perseid meteor shower.  And it is predicted to be one of the better years for it (about 100 meteors per hour).  I won't see it, and it is probably near it peak about know.  I am covered with clouds...

There are only a few major meteor showers each year, and even those have really good years only every few/many years. 

Sorry, that's a bit confusing.  We see meteor showers at the same times every year because the Earth passes through the same point as some cometary debris orbit at the same time every year.  Meaning that the cometary debris that we call meteors intersects Earth orbit the same time every year, but the debris is not spread out along the orbit uniformly.  So some years, we hit denser patches of debris than in other years.  Those times can be spectacular.  But you can't see them if there are clouds; and this year, for me, there are clouds.

You know what frustrates me most?  MOST years, the sky is overcast here on the best meteor nights.  I feel cursed sometimes.  Its all random, of course, but I still fell unlucky about meteor showers.  I'll have to go look at OTHER people's images of the meteors tomorrow on websites.  Well, at least there is that.  But it's not the same as real seeing.  And I miss real seeing...

Early Flowers

It's nice when some flowers nbloom or emerge at the same time... The early daffodils are blooming. Therre are still some crocuses. And t...