Danger, Danger !
Posted: Fri Jun 24, 2011 6:38 pm
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Danger, Danger !
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Posted: Sat Jun 25, 2011 2:02 am
That's why I am a big-bore enthusiast... Can't bag one of those with a varmint round!
Posted: Sun Jun 26, 2011 9:36 am
Didn't we have one to pass at a third of this distance (3400 miles) recently?
Posted: Mon Jun 27, 2011 11:16 am
Yes we did. We may have had some pass even closer than that but the technology didn't exist to monitor them.
R.
Bullseye
R.
Bullseye
Posted: Mon Jun 27, 2011 2:01 pm
http://blogs.discovermagazine.com/badas ... on-monday/
Looks like it missed, guys. Please return to your normally scheduled non-panic.
closest approach was ~7430 miles from surface at 13:01 Eastern US time.
To put that distance in perspective:
- Mt Everest is ~ 5.5 miles above sea level, insignificant compared to closest approach distance
- The meaningfully dense atmosphere is ~10 miles high
- Geostationary orbit is at ~22,236 mi ... so 2011 MD was within the satellite fleet, I wonder what the closest approach was up there?
Some excerpts from the above article:
"We’re in no danger from the asteroid, named 2011 MD, since there’s essentially zero chance it will hit us. Even if it did, it’s too small to impact the surface, and would instead break apart and burn up in the atmosphere. That would be exciting, and make quite a show, but that’s about it."
and
"And I do want to point out one more thing. Since the orbit is very Earth-like, the relative velocity of this rock to us is pretty small. Imagine two cars on a race track, one moving at 200 kph and the other at 210 kph. To someone standing by the track they both scream past at high speed, but to the slower car, the faster one overtakes it at 10 kph — not very fast at all. "
and
Looks like it missed, guys. Please return to your normally scheduled non-panic.
closest approach was ~7430 miles from surface at 13:01 Eastern US time.
To put that distance in perspective:
- Mt Everest is ~ 5.5 miles above sea level, insignificant compared to closest approach distance
- The meaningfully dense atmosphere is ~10 miles high
- Geostationary orbit is at ~22,236 mi ... so 2011 MD was within the satellite fleet, I wonder what the closest approach was up there?
Some excerpts from the above article:
"We’re in no danger from the asteroid, named 2011 MD, since there’s essentially zero chance it will hit us. Even if it did, it’s too small to impact the surface, and would instead break apart and burn up in the atmosphere. That would be exciting, and make quite a show, but that’s about it."
and
"And I do want to point out one more thing. Since the orbit is very Earth-like, the relative velocity of this rock to us is pretty small. Imagine two cars on a race track, one moving at 200 kph and the other at 210 kph. To someone standing by the track they both scream past at high speed, but to the slower car, the faster one overtakes it at 10 kph — not very fast at all. "
and
Posted: Mon Jun 27, 2011 7:37 pm
Relative velocity is the earth and the meteorite/asteroid. However, when the meteorite is captured by the earth's gravity and doesn't have the velocity for obit, it falls to the earth. Once it starts to fall, the velocity will be somewhere between 7 km/s-52 km/s. Remember, when they fall, they burn.
What, me worry? I'm protectedlease return to your normally scheduled non-panic.
Posted: Mon Jun 27, 2011 10:03 pm
greener wrote:Relative velocity is the earth and the meteorite/asteroid. However, when the meteorite is captured by the earth's gravity and doesn't have the velocity for obit, it falls to the earth. Once it starts to fall, the velocity will be somewhere between 7 km/s-52 km/s. Remember, when they fall, they burn.
What, me worry? I'm protectedlease return to your normally scheduled non-panic.
This ones priceless.. I got to get one of them hats... 
Posted: Mon Jun 27, 2011 10:29 pm
ROTFL.......
Posted: Mon Jun 27, 2011 10:36 pm
7430 miles
is very close in
relationship to distances
that occur in outer space. If
the big one is coming, I want to
know about it before it hits earth so
I can take pictures of it and post them on
this forum so everybody can see it. Then, grab
a recliner and watch her come in .
Haka
is very close in
relationship to distances
that occur in outer space. If
the big one is coming, I want to
know about it before it hits earth so
I can take pictures of it and post them on
this forum so everybody can see it. Then, grab
a recliner and watch her come in .
Haka
Posted: Mon Jul 11, 2011 8:50 am
Well, I hope that you get to post before and after pics 