if the earth is spinning at very high speeds though space, how come the moon and stars arnt blury?

Question

the sun moon and start move across the sky slowly yet the earth spins like hell on its axis and is spining though space round the sun how is this?

Answer 1

They don't appear blurry because your eye tracks where the light is, not where it used to be. They celestial bodies don't leave "light trails" behind them. But you can see their motion (and blur) if you take a time lapse photography -- THEN trails of light are laid down, or counted, on photographic film (or digitally if you have a digicam).

Another way to experience the apparent rapid motion of celestial objects due to earth's rotation is by looking through an amateur telescope, one that doesn't have any tracking mechanism. You will see that very quickly the star or planet 'moves' out of the field of view. That is the earth's rapid motion.

Again, if you are on a carousel, rotating very fast, if you fix your attention on an object, it doesn't appear blurry. Yet you must move your head and eyes to track it. The further the object is from you, by the way, the easier it is to follow (as long as it's bright enough or big enough to be visible).

Hope this helps.

Answer 2

It takes a whole day for the Earth to complete a rotation, is that fast?... it depends on what your comparing it to, and its not just the earth thats moving, the sky out there is full of air and clouds that move, and the very stars themselves, entire galaxies, but they're all moving at different speeds in different directions and different ways...

Its not a question of doubt if the earth is spinning, its a question of where is the moon or stars in relation to the earth at the time... As to motion blur, do look at the moon, it takes quite a bit of time to move across the sky, so in relation to us, its not moving all that fast. the same as the sun itself, if the Earth was spinning so fast as to cause motion blur a day would be over within a small number of hours (like 5 or less)..

Actually the more I think about the question and scenarios of the Earth spinning faster, the more spun out I get! ... hehe take care, I hope it helped

Answer 3

Its cause the Sun doesnt move at all and Earth does.But still its weird that the Sun and the Moon move slowly across the sky and the earth is spinning madly!

Answer 4

The great distances involved is the main reason. For example, the sun is about 93-million miles away while the stars are hundreds of trillions of miles away. You've seen the same effect while traveling along in a car. Things that are close to the highway flick passed very quickly, while objects much farther away go by much more slowly.

Answer 5

Relativity, if you are traveling next to something traveling about the same speed as you, that something would appear stationary.

As for the stars, picture yourself traveling on a highway, as you view the mountains or hills far away from you, picture a car that distance away, you wouldn't see a car flying through the mountains, again relativity to position. If a car was traveling a road on that very mountain, it wouldn't be flying past several mountains a second, it would be chugging along some minute road on the mountain, and thus appear as stationary as the mountain.

Answer 6

Next time you are driving down the interstate at 70 miles an hour, look out a side window. Things that are up close will zip by so fast you can't focus on them. Things that are far, far away don't look like they are moving. The moon is 240,000 miles from earth. The closest star is about 4 lightyears away. That's why they don't look blurry.

Answer 7

It's like a photo taken from a moving car. Things up close will be blurred, but things in the distance will be easy to identify. In other words, the distances to the stars and moon are so great that they appear to be almost stationary in our sky.

Answer 8

it is b/c the earth is so big it takes so long for one revolution, that it seemd like we are not moving. look at two wheels one off a matchbox car and one off a real car.
the matchbox wheel at 30 mph has 1000 revolutions a sec where the full size wheel on does 100 ( not real figures just estimation)
now add a huge wheel at 30 mph would only do half of that ...

so basically the earth is so huge that even at super high speeds we are barely even moving.

Answer 9

nicely the earth is extensive so it take a protracted time to rotate, and the celebs are easy years away so it rather is like while issues to the fringe of you in a vehicle pass very quickly yet stuff some distance away seems slower going in the direction of it... in a fashion,

Answer 10

yes, earth is moving with great velocity,,,,,, but that velocity is not fast as we comapared to the earth size,,,,, thats why we never realise that earth is spinning,,,,,

even that part of earth we can see at ones sight,,,,, we found , it is plain becoz whatever we see is just small part of earth,,,,,, though earth is round,,,


even the sun and moon is very far from our earth,,,, thats why its never appears blur.....