reply to post by cloaked4u
I wonder what the margin of error is and if anything will effect YU55 trajectory.
Skip back to page #10, another ATS member posted a nice image for you....it is from the JPL
website. 2005 YU55 is above the plane of the ecliptic. Try to remember to think n three dimensions, when discussing things in space.
IF SO, then what do you think will happen to the oceans if YU55 hits the moon?
It will make a crater. Would be very interesting to a lot of scientists if it did happen on the hemisphere that faces Earth, so it could be observed.
But again....it is still above the Earth and Moon, as they move on orbit around the Sun.
Oh, and about its trajectory being a
ffected, there really is nothing local to the Earth/Moon system to cause that. By the way, think about the
fact that astronomers can calculate orbital trajectories very precisely.....observations are quite precise, especially when there are many taken
(which is the case here). Because, think about it....we have no trouble sending spacecraft out on very accurate trajectories, to put them where we
want, and make rendezvous with other planets or moons. The science of motion and orbital mechanics is very well understood.
How large is 400 meters in miles and how fast is this thing travelling anyway?
400 meters is roughly 1300 feet. Its velocity I don't know to hand....will be at the JPL website, but recall that it's relative, since everything
is in motion. One asteroid impact calculator program I saw said an average for asteroids (objects) near Earth (a "NEO") would have a velocity
difference of about 17 km/sec. But, there can be a multitude of differences, all depends on the orbital paths, etc.
Could this make pieces fly off the moon and come flying down to earth in balls of fire?
No, a very, very massively large object striking the Moon would be needed. It would have to be energetic enough to cause debris to reach the Moon's
escape velocity....otherwise, anything thrown up from impact would remain in the Moon's orbit, eventually to fall back to the Lunar surface.
Could this YU55 create a space dust bowl and block out the sun's rays and put earth in a mini ice age?
Not at that meager size.
You can play with this program: Impact Earth!
( Slow Internet? This is same, just not fancy graphics: impact.ese.ic.ac.uk...
That is only for Earth, and our 1g gravity. But, the Moon is far enough away that even if some ejecta escaped its gravity, would be minor....and our
atmosphere protects us from that...nice meteor shower wold be seen, though....
Now, I do hope the OP, and a few others, will come on back to re-visit this thread on the 10th or 11th November, after no impact has occurred. Should
be fun to watch someone eating crow........