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Astronomy News

 


 

Gamma Ray Burst
Visible to the Naked Eye!
If you were one of the lucky ones, to be walking your pet, or just sitting outside on March 19, 2008, at 2:13AM, starring up at the constellation Boötes (below the handle of the Big Dipper), you would have witnessed a once-in-a-lifetime event.

Currently, the furthest object in space, visible to the unaided eye, is the Andromeda Galaxy, at a distance of 2.2 - 2.9 million light years away! Now that's pretty far indeed. However (remember, I said "million" there).. on the night of March 19th, a cosmic event was witnessed from a dying star that has long since expired, and it's effect was just reaching us now..

At over 7.5 BILLION (not million) light years away (about half the age of the universe), people looking up at that moment, and for about 15 seconds or so thereafter, would have then had a chance to beat the record of the furthest distant object visible to the human eye! This means, the star died in a violent death, with it's remaining gases being pushed through it's collapsing stellar atmosphere at 99.99995% the speed of light, and after 7.5 billion years of travelling through space, we got to have a chance to witness this spectacular remnant of light, for just 15 seconds...

I was, like many, missed it and was sound asleep. :(

 

Near Earth Asteroids
T
here are over 975 known potentially hazardous Earth asteroids. Close approach asteroids, are considered by this web site, to be those less than 3 moon distances from Earth.

Solar Information
The National Centre for Atmospheric Research, in Boulder, Colorado, predicts the next solar cycle will begin with an increase in solar activity in late 2007 or early 2008, and there will be 30 to 50 percent more sunspots, flares, and Coronal Mass Ejections in cycle #24. This is about one year later than the prediction using previous methods, which rely on such statistics as the strength of the large-scale solar magnetic field and the number of sunspots to make estimates for the next cycle. The Australian Space Weather Agency uses the latter method to determine sunspot cycles.