It doesn't look like we will see it unless you happen to have more than 6"... that is a 6" or larger telescope.
Will I be able to see 2005 YU55?
Yes, if you have access to a decent telescope. Under dark and clear skies, any scope with an aperture 6 inches (15 centimeters) or larger should let you pick up 2005 YU55 on the night of Nov. 8, Brozovic said.
The asteroid won't be sitting placidly in your eyepiece like a planet or a star, however. It will be streaking across the sky at about 9 degrees per hour, Yeomans said. (Your clenched fist held at arm's length measures about 10 degrees.)
"If you see it in your telescope, you'll see it move," Yeomans said.
You probably won't be able to find 2005 YU55 without help, Yeomans added, as the object will be relatively small and dark. Its coordinates at any given time can be found at JPL's Solar System Dynamics website, found here: http://ssd.jpl.nasa.gov/.
So while it is something for geeks with telescopes to get excited about, the rest of us won;t notice. The solar flares will be affecting us more than this aircraft carrier-sized piece of rock. Has anyone seen any auroras lately?