Someone above added the earth’s rotation with its revolution around the sun, but don’t we have to subtract half of one of those figures, since half the time the world must be rotating the opposite to its revolting direction in a calculus sense, or something.
Somewhat hijack: the more interesting query than speed is the path of the earth, or even better the path of the moon throughout space. The moon neer really gets all the way around the earth in a circular or elliptic I mean orbit since the earth has moved on along, so the moon is actually making a kind of regular scribble or corkscrew type path in one plane. But since the sun is moving around the Galactic Center, the moon’s scribble path is carried along somehow and I can’t imagine it in my mind. Also the plane of our planets isn’t in that of the galaxy but is tilted 60 degrees away from it, and moreover, the local stars move up and down in a wave pattern as the galaxy twirls around, which must affect the shape of the path of the moon too. Ie., the solar system tilted sixty dergrees and several nearby stars hump up and down as they make their way with other stars around the whole galaxy. The galaxy is moving some say toward Andromeda galaxy, or the other way around, or both, some say; other time one reads in the data that in any case the entire Local Group is travelling along as part of the total expansion of the universe.
I am assuming as a fixed point from which this strange curve of the moon could be ddrawn to be above the north pole of the earth looking down. It would be a point straight up along a line connecting the south and the north poles, that is, and projected straight “north” way far out about a couple parsecs from the universal zenith or maybe at that zenith itself actually. Which the Zenith would be that point inscribed upon the dome of the universe by a line from the south to the north pole of the earth. However, I know some will not believe in the Universal Zenith (which I just thought up). One proplem would be that old bugaboo of the Precession, and now that I thihk of it, whoops, the fac that the very fact that the earth is moving makes it impossible in principle to talk about making a fixed point from a line extended from the south to the north pole and hitting on the dome of the universe. But couldn’t we then average it all? All the positions that this dot on the Dome would take coud be averaged out and then that’s the point from which we would view the path of the earth. No…that woulnd’t work either since it would be like the perpetual motion machine being impossible. Jeeves, get me a coool cloth to put on my head…