I was just reading some of the OP's replies. I think I see where his confusion is. He stated that the earth rotates on it's axis much slower than
it's velocity around the sun: 1,000 Mph vs 67,000 Mph, and is wondering why if we see the stars streak from the earth's meager 1,000 Mph, why we
don't see any other movement clearly visible when taking pictures from the earth's orbital velocity around the sun as it's 67 times greater.
Many of you have give some great links, information, and things for the OP to try.
However, it does not seem to answer their above question, so let me try:
The Earth spins on it's axis at about 1,000 Mph. If you are standing at it's equator, you're moving with it of course, and the distance traveled in
that spin is about 24,000 miles. This takes about 24 hours of course.
Now, let's take a look at the Earth's orbit. It's moving around the sun at about 67,000 Mph, 67 times faster than it's spinning. However, the
Earth has to travel about 584,040,000 miles to make a complete orbit around the sun (that's using 93 million miles as the average radius).
It takes us a whole year to make that journey.
Now, the closest star (other than our sun) is about 4.3 light years away. That is 25,278,089,104,689.48 miles away.
So let's break it down to a smaller scale. You're on a carousel that is 24 feet around. It's spinning so that you go all the way around in 10
seconds, so your velocity is 2.4 feet per second.
Now let's say this carousel is mounted on a flatbed truck, which is going down the freeway at 67 times that speed, or 160.8 feet per second (that's
one FAST truck!).
Now, let's use a skyscraper instead of a star, and it's about 2.5 miles away, the truck is traveling so that it's on the right side of it as it
moves down the road.
As you look at that building 2.5 miles away, it will arc across your field of view (because the carousel is spinning, AND you're stuck facing one
direction from it: Out. So that building comes in your field of view every 5 seconds, and is gone because you're facing away from it. This is just
like when the earth spins.
But that truck is moving too, and a LOT faster right? Ah! Yes, but that building is WAY far away. It's 2.5 miles away. Each time it comes into your
field of view, it will seem to have moved a little (the same way the constellations appear to move as the year goes by), but while you get to watch it
for 5 seconds, it does not seem to move hardly at all. As a mater of fact, you'll have to spin around many times on that carousel before you see any
significant movement (just like here on Earth, as it takes many nights before you notice that the constellations are not in the same place they were a
week earlier at the same time of night).
If you were to mount a camera to the carousel and take a long term exposure of the building, it would appear to streak across the frame, but you would
not see any OTHER movement.
Why? I just explained why: you'd have to expose the frame for days and days is why. And your field of view is being interrupted as the carousel spins
around, removing the building from view.
So to sum up:
The stars streak in one direction on your film, because you can only expose them for so long at night, and the earth's rotation while slower than
it's orbit around the sun, makes our field of view change rapidly. However, you can not expose your film long enough to see the stars positions
change in other ways due to the Earth's movement around the sun, simply because of how long that take (even thought it's faster than spin) and
because of how far away those stars are..
Now, if you were to go out, mount a camera in one spot, and take 10 minute exposure, at the same time every time, with the camera pointed in the same
direction, then overlay each photo on top of each other: you WOULD see movement other than just from one side to the other! But it will take you a
week or so to get that.