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How would a three-hour time exposure photograph of stars in the northern sky appear if earth is not rotating?
Wiki User
∙ 11y ago
This answer depends on the location of the camera taking the picture. If the camera is on the ground, then the exposure would come out clearer if the camera was not mounted on a system that could automatically move the lens. If the camera was in LEO (Low Earth Orbit) it wouldn't matter if the earth was rotating.
Wiki User
∙ 11y ago
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What is the fastest rotating body in the solar system?
The fastest rotating planet is Jupiter.
Is the sun constantly rotating and revolving around the earth?
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If the Earth didn't rotate, then the camera would stay where you pointed it, and a three hour exposure would look just like a 1/60 second exposure except that everything would be a lot brighter.The fact that the Earth does rotate is a problem in astrophotography. To get long exposures, it's necessary to mount the telescope on a motorized base turning in the opposite direction to counteract the rotation of the Earth and keep the camera pointed at the same star for the entire length of the exposure ... if you don't, you get "trails" as the stars move across the camera's field of view. (Though really it's the camera that's doing most of the moving ... the stars are moving, but they're so far away that it takes a lot more than three hours for them to move noticeably.)
What is the coriolist effect?
The Coriolis effect is the appearance of objects to change direction when they are viewed in a rotating field. As the Earth is constantly rotating, this causes moving objects to move clockwise in the Northern Hemisphere and counterclockwise in the Southern.
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The earth rotating on its axis. When the northern hemisphere is facing the sun it is summer. In the southern it is winter.
Which loss is not common between a transformer and rotating machines?
Frictional , rotating losses are not common to transformers and rotating machines. these are specific to rotating machines.
When did derecho or right rotating storms start in North America?
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Is a thrown Frisbee rotating or revolving?
rotating
What does rotating on an axis mean?
rotating on a fixed point
How many syllables does rotating have?
the word rotating has 3 sylablles
What do you call a rotating vent on the roof?
Rotating chimney cowl, rotating chimney cowl, spinning cowl, revolving cowl,
How rotating magnetic amplifier work?
what does it mean by rotating amplifier and how it works?
What is the fastest rotating body in the solar system?
The fastest rotating planet is Jupiter.
What is palindrome for rotating engine part?
A palindrome for a rotating engine part is Rotor.
