Brace Yourselves! Solar Superstorm on the way.
Discussion
http://news.sky.com/story/1048727/solar-superstorm...
Spotted this in the news earlier.
How are we supposed to brace oursleves?
What should I hang on to?
and, aparently there is a 45km wide asteriod passing 17,000 miles away from earth soon.
We're all doomed I tell you!
Spotted this in the news earlier.
How are we supposed to brace oursleves?
What should I hang on to?
and, aparently there is a 45km wide asteriod passing 17,000 miles away from earth soon.
We're all doomed I tell you!
k all about? Well that'll be a catastrophe.odyssey2200 said:
I was rather hoping that it might completely knock out the Galileo Sat system and kill any dreams of road pricing via GPS.
This will happen eventually, A space junk cascade will in time destroy all satellites. I really hope its the newly independant peoples republic of Scotland's Satellite that starts it off..... 
Tim330 said:
At only 45m wide & 17,000miles I would say say no
We can see the sun reflecting off Satellites and they're much smaller and further away, no? Or are the ones we can see a lot closer due to their moving orbits?Shame, would be good if there were some cool way to track and film it.
AshVX220 said:
Tim330 said:
At only 45m wide & 17,000miles I would say say no
We can see the sun reflecting off Satellites and they're much smaller and further away, no? Or are the ones we can see a lot closer due to their moving orbits?Shame, would be good if there were some cool way to track and film it.
ISS is at an altitude of 259 miles and is clearly visible with the naked eye, but is much smaller than the asteroid.
Would the mahooosive size of the asteroid compensate for the distance??
Over to the PH mathematicians...
odyssey2200 said:
AshVX220 said:
Tim330 said:
At only 45m wide & 17,000miles I would say say no
We can see the sun reflecting off Satellites and they're much smaller and further away, no? Or are the ones we can see a lot closer due to their moving orbits?Shame, would be good if there were some cool way to track and film it.
ISS is at an altitude of 259 miles and is clearly visible with the naked eye, but is much smaller than the asteroid.
Would the mahooosive size of the asteroid compensate for the distance??
Over to the PH mathematicians...
Length 72.8 m
Width 108.5 m
Height c. 20 m (c. 66 ft)
So a comparable size to the asteroid (asteroid size is in meters not miles) I would expect the ISS to have a higher reflectance as well due to all the metal/solar panels etc.
crmcatee said:
When is this big boy expected to pass ?
http://en.wikipedia.org/wiki/2012_DA14"It is now known that on February 15, 2013 at 19:25 Universal Time the asteroid will pass at a distance of 0.000228 AU (34,100 km; 21,200 mi) from the center-point of Earth,[3] with an uncertainty region of about 0.000001 AU (150 km; 93 mi).[3] (In other words, the asteroid will pass about 27,700 kilometers (17,200 mi) above Earth's surface."
Also interesting, would make a big bang
"If it were to impact Earth, it is estimated that it would enter the atmosphere at 12.7 km/s with the kinetic energy of 3.6 megatons of TNT,[4] and produce an air burst with the equivalent of 2.9 megatons of TNT[14] at an altitude of roughly 8.5 kilometers (28,000 ft).[14] The Tunguska event has been estimated at 3−20 megatons"
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