2012 DA14 WILL hit earth.. Confirmed.

They go by diameter when they measure a single earth distance.Since the earth is 7,928 miles in diameter,3 earth distances would be less than 24,000 miles away.

It's current speed is about 7.8 kilometers/second (28,000 km/h) relative to Earth.
Earth's average orbital speed is 107,200 km/h.

Since this thing orbits the Sun at about the same average distance as Earth does its average orbital speed is about the same.
It is because it is crossing our orbit that the relative speed is much greater than zero.


Why wonder if you can calculate.
We know how much matter there typically is in a CME.
We also know how fast it moves.
So an OOM calculation of the amount of kinetic energy it could transfer to this rock should be a nice exercise in applied physics.

Enjoy!

Just thought i would correct my comment, i ment "lol at the people thinking this thing is traveling at 10,000km per second, not per hour"
it would be real scary if there were rock wizzing round space at 2% the dpeed of light haha
Now that really would cause a tidal wave that would spread across the whole globe!!

Anyone else hear about their being a massive jump in employment for FEMA?

I know nasa have considered making a space craft with a huge sail to ride on the solar wind. So maybe a solar flair could push this object just enough to make it hit us??

What would happen if this rock hits us?? Game over?? Or just a catastrophic blast?

I'm beginning to worry about this shit....don wanna die now

The Pope's last tweet before resigning......

We must trust in the mighty power of God’s mercy. We are all sinners, but His grace transforms us and makes us new.

Bullshit....fear mongering asshole.

bump

It is a big deal if it did hit earth but the problem with loosing communication could trigger civil unrest and martial law type situations.. People that are not in the loop will not understand.. False rumors cause results.

So impact or no? Did they look at the Yarkovsky Effect?

.

Not sure, I am just waiting to see what is said tonight in Obama speech (clues) and then wait and see how this pans out.. Anybody LIVING in this time should have a back up supply for the just in case situation.. Things are really unstable.. No power or communication = crazy people that are tense with guns..

Again, the Yarkovsky effect as well as solar radiation pressure are IRRELEVANT over short time spans. It's extremely difficult to even detect even after YEARS of time!
[link to astro.troja.mff.cuni.cz]
"We rather restrict
our analysis to understanding the orbital perturbation induced
by the Yarkovsky effect for the near-Earth asteroids (NEAs)
observed at-present. Obviously, the short time scale involved
( years) must be compensated by very high precision obser-
vations."

OK, what what about the undetermined, or INCREASE in body size, and gravitational affects?

...and could solar winds from flare alter course?

The gravity of all the planets is already accounted for. It's not "increasing" in size.

Maybe they referin ta diametyer of earth about 8000 miles meaning about 24000 miles

No.

Actual the estimate of its size HAS gone up from 45 to 65 now.

In fact NASA is saying 90m max.

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...

So why are some Soviet scientists saying it could very well impact?

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.

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.

Don't know, don't care. Sounds like you listened to too much RT propaganda.

Its mass is irrelevant.

This information was found on [link to hisz.rsoe.hu]

(2012 DA14) 14th February 2013 3 day(s) 0.0002 0.09 35 m - 79 m 7.78 km/s 28008 km/h

and the JPL database:

[link to ssd.jpl.nasa.gov]

Be Love!

In fact if the asteroid is "breaking up" is could APPEAR to be actually getting larger as its overall density is decreasing (gaps forming, etc.).

[link to neo.jpl.nasa.gov]

Scroll down here and you will see 90m max. estimate.

why?

Why do you say WE so much and (our determination). It seems you are part of NASA.

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 Astromut on 02/12/2013 01:22 PM