I was standing in a small parking lot by the entrance of exit 24 of the grand central parkway in Queens, NYC speaking on my cellphone when I noticed what looked like the brightest star in the sky start to move very slowly. At first I thought it was a high flying plane given our proximity to LaGuardia airport, but the object was a steady white light with no flashing. Shortly after the sighting I noticed a few airplanes do the contrast confirmed at least that this was different. The bright light moved at a steady pace from west to easy over about 4 minutes, and by that point was over the trees and out of sight. The object made no noise. The object seemed too high to be a hellicopter, and was also silent. At first I thought it was a shooting star (which I remarked on the phonecall) but a slow 4 minute trek over the visible sky seemed a bit off. Perhaps a sattelite of some sort?