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| Science Forum Index » Astro - Amateur Forum » Space Weather News for Oct. 28, 2009... |
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| Sam Wormley... |
 Posted: Wed Oct 28, 2009 5:08 pm |
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Guest
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Space Weather News for Oct. 28, 2009
http://spaceweather.com
INDONESIAN ASTEROID: Earlier this month, with no warning, a ~10-meter wide asteroid hit
Earth's atmosphere above Indonesia and exploded. The break-up was so powerful, it
triggered nuclear test ban sensors thousands of kilometers away. A just-released analysis
of infrasound data shows that the asteroid detonated with an energy equivalent of about
50 kton of TNT, similar to a small atomic bomb. This significant impact has received
relatively little attention in Western press. Details are available today on
http://spaceweather.com.
SUNSPOT UPDATE: Since it emerged last weekend, new-cycle sunspot 1029 has become the
biggest and most active sunspot of 2009. It is crackling with B- and C-class solar flares
and putting on a good show for amateur astronomers. This one sunspot does not put an end
to solar minimum, but it is a remarkable break from the calm. Check
htttp://spaceweather.com for images and updates.
CONNECT YOUR PHONE TO THE SKY: Would you like a call when Earth-orbiting satellites
detect strong solar flares and solar wind gusts? Sign up for Spaceweather PHONE to turn
your telephone into a bona fide solar activity alert system: http://spaceweatherphone.com |
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The time now is Fri Dec 11, 2009 2:26 pm
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