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2012 DA14 WILL hit earth.. Confirmed.

 
Dr. AstroModerator
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02/12/2013 01:22 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
Well it is "increasing" in size when NASA first tells everyone its 45 meters and now they are saying it is 65 meters and a possibility of 90 meters...
 Quoting: Anonymous Coward 1018748


So with that increase in diameter, the MASS surely has to be recalculated unless they are saying the density is 1/8 of what they thought.
 Quoting: Anonymous Coward 203352


Its mass is irrelevant.
 Quoting: Dr. Astro


why?
 Quoting: Anonymous Coward 203352


Because it will experience the same amount of attraction from earth regardless. Physics 101. Even if it were a kilometer wide it still wouldn't have enough mass to detectably affect earth itself.

Last Edited by Dr. Astro on 02/12/2013 01:22 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Actual the estimate of its size HAS gone up from 45 to 65 now.

In fact NASA is saying 90m max.
 Quoting: Anonymous Coward 203352


The asteroid is not physically increasing in size. Our determination of its size is only approximate and is based on our calculation of its absolute magnitude. Right now that is mag 24.1 by the minor planet center's calculations, which for an asteroid with an average albedo of about .15 is about 51 meters in size. We will have a much firmer idea of the size from radar observations that will be performed starting on the 16th.
 Quoting: Dr. Astro


Why do you say WE so much and (our determination). It seems you are part of NASA.
 Quoting: Anonymous Coward 1113183


I say we so much because I'm not the only one doing these calculations. Neither is NASA. I'm an amateur astronomer. I am not part of NASA. Seems you have an agenda to discredit me.
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02/12/2013 01:24 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Dr astro clearly has no clue WTF he is talking about
leyba
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02/12/2013 01:24 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
unfortunately, it's gonna take events like this (asteroid impact) and many others like it in order to change man.

we are so fucked up that we do need something like this to happen! think of all of the corruption, greed, and hate that we have.....and you know what? is all temporary to boot!

my vote is for: bring it on!
"...because Marines kill every-thing-we-see!"
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02/12/2013 01:25 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
...


So with that increase in diameter, the MASS surely has to be recalculated unless they are saying the density is 1/8 of what they thought.
 Quoting: Anonymous Coward 203352


Its mass is irrelevant.
 Quoting: Dr. Astro


why?
 Quoting: Anonymous Coward 203352


Because it will experience the same amount of attraction from earth regardless. Physics 101. Even if it were a kilometer wide it still wouldn't have enough mass to detectably affect earth itself.
 Quoting: Dr. Astro


Well, then you should say the mass is "effectively" irrelevent, not totally.
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02/12/2013 01:25 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
It's changing shape thus the size gets changed, it's going to slow down and shift course cause it's a space craft.
Dr. AstroModerator
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Dr astro clearly has no clue WTF he is talking about
 Quoting: Anonymous Coward 33417634


I know exactly what I'm talking about. I've done these calculations many times.

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LunaHominem

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02/12/2013 01:25 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Has anyone ever debunked David Dunham's assertions (as transcribed by Russia’s Izvestia) last year at Moscow’s University of Electronics and Mathematics that:


"The Earth’s gravitational field will alter the asteroid’s path significantly. Further scrupulous calculation is required to estimate the threat of collision. The asteroid may break into dozens of small pieces, or several large lumps may split from it and burn up in the atmosphere. The type of the asteroid and its mineral structure can be determined by spectral analysis. This will help predict its behavior in the atmosphere and what should be done to prevent the potential threat."

Also, I wonder what kind of influence Mercury' accelerating orbit has had on DA14?
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Re: 2012 DA14 WILL hit earth.. Confirmed.
...


Its mass is irrelevant.
 Quoting: Dr. Astro


why?
 Quoting: Anonymous Coward 203352


Because it will experience the same amount of attraction from earth regardless. Physics 101. Even if it were a kilometer wide it still wouldn't have enough mass to detectably affect earth itself.
 Quoting: Dr. Astro


Well, then you should say the mass is "effectively" irrelevent, not totally.
 Quoting: Anonymous Coward 203352


Talk about splitting hairs... Sorry, not going to play that game.
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Has anyone ever debunked David Dunham's assertions (as transcribed by Russia’s Izvestia) last year at Moscow’s University of Electronics and Mathematics that:


"The Earth’s gravitational field will alter the asteroid’s path significantly. Further scrupulous calculation is required to estimate the threat of collision. The asteroid may break into dozens of small pieces, or several large lumps may split from it and burn up in the atmosphere. The type of the asteroid and its mineral structure can be determined by spectral analysis. This will help predict its behavior in the atmosphere and what should be done to prevent the potential threat."

Also, I wonder what kind of influence Mercury' accelerating orbit has had on DA14?
 Quoting: LunaHominem


You again. See above. It won't hit earth. Even if it broke up the fragments would continue along the original orbit.
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Re: 2012 DA14 WILL hit earth.. Confirmed.
...


why?
 Quoting: Anonymous Coward 203352


Because it will experience the same amount of attraction from earth regardless. Physics 101. Even if it were a kilometer wide it still wouldn't have enough mass to detectably affect earth itself.
 Quoting: Dr. Astro


Well, then you should say the mass is "effectively" irrelevent, not totally.
 Quoting: Anonymous Coward 203352


Talk about splitting hairs... Sorry, not going to play that game.
 Quoting: Dr. Astro


Astro, you thrive off splitting hairs, so why not be totally accurate now.
Anonymous Coward
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02/12/2013 01:31 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Nasa said it could hit satellites.

That in itself would make an 'impact'.
Anonymous Coward
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02/12/2013 01:32 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Has anyone ever debunked David Dunham's assertions (as transcribed by Russia’s Izvestia) last year at Moscow’s University of Electronics and Mathematics that:


"The Earth’s gravitational field will alter the asteroid’s path significantly. Further scrupulous calculation is required to estimate the threat of collision. The asteroid may break into dozens of small pieces, or several large lumps may split from it and burn up in the atmosphere. The type of the asteroid and its mineral structure can be determined by spectral analysis. This will help predict its behavior in the atmosphere and what should be done to prevent the potential threat."

Also, I wonder what kind of influence Mercury' accelerating orbit has had on DA14?
 Quoting: LunaHominem


You again. See above. It won't hit earth. Even if it broke up the fragments would continue along the original orbit.
 Quoting: Dr. Astro


Do you think our communication will be in jeopardy?
Anonymous Coward
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02/12/2013 01:34 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
That program updates over the Internet..... Not saying its been corrupted but when was it last updated and if was recent if you have original version of that program you could install a fresh version and redo the calculations I bet that the original program spits out a diffrent set of variables.
Anonymous Coward
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02/12/2013 01:39 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
You again. See above. It won't hit earth.
 Quoting: Dr. Astro


You also said it wouldn't hit any satellites so wtf?
Dr. AstroModerator
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02/12/2013 01:40 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
Has anyone ever debunked David Dunham's assertions (as transcribed by Russia’s Izvestia) last year at Moscow’s University of Electronics and Mathematics that:


"The Earth’s gravitational field will alter the asteroid’s path significantly. Further scrupulous calculation is required to estimate the threat of collision. The asteroid may break into dozens of small pieces, or several large lumps may split from it and burn up in the atmosphere. The type of the asteroid and its mineral structure can be determined by spectral analysis. This will help predict its behavior in the atmosphere and what should be done to prevent the potential threat."

Also, I wonder what kind of influence Mercury' accelerating orbit has had on DA14?
 Quoting: LunaHominem


You again. See above. It won't hit earth. Even if it broke up the fragments would continue along the original orbit.
 Quoting: Dr. Astro


Do you think our communication will be in jeopardy?
 Quoting: Ohio Lovely


No. It's going to pass inside the orbits of our communications satellites from south to north. If it manages to hit anything up there (extremely unlikely) the debris will most likely avoid those sats.
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Also, passing close to the earth, could the asteroid discharge like a giant capacitor?

Could this discharge of current alter it's course?

The break up could alter it's course, too.

It is possible that there could be an earth impact of some fragments?


When objects come close to the son we witness a plasma discharge. Could the earth itself emit a discharge of some sort of energy that would affect it , alter it's flight trajectory and cause impact?


Lot's of questions here.

No real assurances of impact or non impact seem possible.


hf
Dr. AstroModerator
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02/12/2013 01:42 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
You again. See above. It won't hit earth.
 Quoting: Dr. Astro


You also said it wouldn't hit any satellites so wtf?
 Quoting: Anonymous Coward 33417634


What about it? Previously the uncertainty region included our geostationary and geosynchronous satellites. Those satellites are at high risk of a domino effect should one of them end up getting hit. Now we know the orbit passes inside the orbits of those satellites. You seem to act like it will either hit one or the other. That's completely wrong. Space is huge, even the space between earth and our geostationary satellites is huge.
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Lot's of questions here.

No real assurances of impact or non impact seem possible.
 Quoting: Son of PC 33127834

That's because you have a fundamentally screwed up understanding of astronomy. Oh well.
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Re: 2012 DA14 WILL hit earth.. Confirmed.
That program updates over the Internet.....
 Quoting: Anonymous Coward 16663041

What the fuck are you talking about?
Not saying its been corrupted but when was it last updated and if was recent if you have original version of that program you could install a fresh version and redo the calculations I bet that the original program spits out a diffrent set of variables.
 Quoting: AC

Again, what the fuck are you talking about?
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Re: 2012 DA14 WILL hit earth.. Confirmed.
...


Because it will experience the same amount of attraction from earth regardless. Physics 101. Even if it were a kilometer wide it still wouldn't have enough mass to detectably affect earth itself.
 Quoting: Dr. Astro


Well, then you should say the mass is "effectively" irrelevent, not totally.
 Quoting: Anonymous Coward 203352


Talk about splitting hairs... Sorry, not going to play that game.
 Quoting: Dr. Astro


Astro, you thrive off splitting hairs, so why not be totally accurate now.
 Quoting: Anonymous Coward 203352


Because it's irrelevant. I don't split hairs over things that don't affect the claim.
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02/12/2013 01:47 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Astromut....don't waste your time with stupidity...
thanks for sharing your knowledge and i can count on that this will be a NON EVENT... for humanaty!...

I see you on the other side and hope you have a great valentine's day with your love one!!!!
Anonymous Coward
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02/12/2013 01:49 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Also, passing close to the earth, could the asteroid discharge like a giant capacitor?

Could this discharge of current alter it's course?

The break up could alter it's course, too.

It is possible that there could be an earth impact of some fragments?


When objects come close to the son we witness a plasma discharge. Could the earth itself emit a discharge of some sort of energy that would affect it , alter it's flight trajectory and cause impact?


Lot's of questions here.

No real assurances of impact or non impact seem possible.


hf
 Quoting: Son of PC 33127834


Dude..... WTF are you talking about?

"Discharge like a giant caapacitor...."?

Lol.
Anonymous Coward
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02/12/2013 01:51 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
My son is in the RAF and has been placed on high alert for home-land security ' quoting disaster emergency relief'. He can't say what for but the U.K military has been placed on high alert for an immediate reediness.

I am not a troll or rumor fear monger, the only thing I can think of is this asteroid closing in on earth. They are not getting ready for war, but home land emergency relief.
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02/12/2013 01:57 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
It's not a bad idea to be prepared. Don't panic though, nothing may happen.
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02/12/2013 01:57 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Lot's of questions here.

No real assurances of impact or non impact seem possible.
 Quoting: Son of PC 33127834

That's because you have a fundamentally screwed up understanding of astronomy. Oh well.
 Quoting: Dr. Astro


Actually, I know almost nothing of astronomy.

But I did predict the destruction of New Orleans the year it happened before a live witness, but missed by one month.

A stunning prediction, not well documented.

All I am saying here is that the object could possibly hit the earth. If it did, chances are that it would impact water.

Also, there is the possibility of an air burst of some type, like happened in Siberia in 1908.

So, if you see a large burst of light in the air don't stare at it.

hf
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Re: 2012 DA14 WILL hit earth.. Confirmed.
...


Well, then you should say the mass is "effectively" irrelevent, not totally.
 Quoting: Anonymous Coward 203352


Talk about splitting hairs... Sorry, not going to play that game.
 Quoting: Dr. Astro


Astro, you thrive off splitting hairs, so why not be totally accurate now.
 Quoting: Anonymous Coward 203352


Because it's irrelevant. I don't split hairs over things that don't affect the claim.
 Quoting: Dr. Astro


physic law just say that thhe speed of falling is the same for every mass.

but if this asteroid is bigger, its trajectory will be altered by earth gravity. and alter this asteroid speed too
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Re: 2012 DA14 WILL hit earth.. Confirmed.
That program updates over the Internet.....
 Quoting: Anonymous Coward 16663041

What the fuck are you talking about?
Not saying its been corrupted but when was it last updated and if was recent if you have original version of that program you could install a fresh version and redo the calculations I bet that the original program spits out a diffrent set of variables.
 Quoting: AC

Again, what the fuck are you talking about?
 Quoting: Dr. Astro


Programs that update over the net are suspect, install it fresh with no updates and plug in your variables if they match up then no worries if they don't well then it's suspect of course. I refresh operating systems every month with ie wipe the entire pc reinstall fresh with all security patches already installed. Hackers is a epidemic, and you would be amazed at what goes on in that world. I've seen clean operating systems or programs get changed overnight. It wouldn't be out of the realm of possibilities that a program gets updated to give statistics for amatures or even pros.

That's what the fuck I'm talking about. Install fresh no updates do your calcs and then correlate that's how science is done. Measure twice cut once.
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Re: 2012 DA14 WILL hit earth.. Confirmed.


Good informative video
Dr. AstroModerator
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Re: 2012 DA14 WILL hit earth.. Confirmed.
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Talk about splitting hairs... Sorry, not going to play that game.
 Quoting: Dr. Astro


Astro, you thrive off splitting hairs, so why not be totally accurate now.
 Quoting: Anonymous Coward 203352


Because it's irrelevant. I don't split hairs over things that don't affect the claim.
 Quoting: Dr. Astro


physic law just say that thhe speed of falling is the same for every mass.

but if this asteroid is bigger, its trajectory will be altered by earth gravity. and alter this asteroid speed too
 Quoting: Anonymous Coward 34240632


The asteroid's trajectory will be altered by earth's gravity the same regardless of its mass. Physics fail. If it were a significant fraction of the earth's mass then the mutual attraction would be noticeably greater, but that is not the case here. Its mass is irrelevant compared to earth's mass.
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