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Why the earth appears static when nasa satellite shows live when earth is rotating at great speeds around itself?
Wiki User
∙ 6y ago
While Earth's rotation has a tremendous tangential speed, the satellite pictures are taken from such a great distance that this movement is not readily seen. Consider seeing a a jet plane in the sky. The place is moving at several hundred miles per hour, but when seen from a few miles below it appears to move rather slowly across the sky. Earth takes 24 hours to complete a rotation, so the actual angular speed of the rotation is quite small. There are other potential factors as well. Some satellite pictures are from geosynchronous satellites whose orbits match Earth's rotation. Live video from the International Space Station is publicly available. The speed of rotation at Earth's equator is 1,040 miles per hour while the Space station orbits much faster at 17,600 miles per hour. In live video its movement over Earth is noticeable.
Wiki User
∙ 6y ago
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Why is geostationary important?
A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometers (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east). At this altitude, one orbit takes 24 hours, the same length of time as the earth requires to rotate once on its axis. The term geostationary comes from the fact that such a satellite appears nearly stationary in the sky as seen by a ground-based observer. In other words a satellite that orbits a specific part of the earth while the earth is rotating so it looks like the satellite doesn't move. For example if you put a satellite over over the geographic US it will stay over the US and turn with the earth around the axis without ever loosing site of the US.
What is the difference between a planet and a natural satellite?
A planet is an object that orbits a star, has enough gravity to make itself mostly round, and has cleared other objects out of its orbit. A satellite is an object that orbits another object that is itself orbiting a star. The object may be a planet, dwarf planet, asteroid, or comet.
How does a clown fish defend itself?
A clown fish defends itself by hanging around in anemone's. The poison rubs onto their skin.
Why does a geosynchronous satellite not trace a path over the surface of Earth?
A geostationary orbit achieved by being in a location where the satellite's orbital period is 24 hours. This means the satellite is about 36,000 km (22,000 miles) above the Earth's surface. All orbits must therefore be over the equator. Every orbit around the earth looks like a circular (or elliptical) ring whose center (or one foci) is at the center of gravity of the Earth. An orbit exactly above the equator is one such orbit, but any orbit can be tilted as long as the center (or focus) stays at the Earth's center and the whole orbit is flat like a disk. On various NASA maps this makes the orbit look like a sinewave, but on a globe it stays a flat circle (or ellipse). On "Star Trek" I have seen errors a number of times on "Geostationary orbit over the North Pole", well you can't do that. Likewise, a "Lunar-stationary orbit" is impossible for a spacecraft, since Earth itself is already IN THE STATIONARY ORBIT POSITION! Remember that a geostationary orbit looks like it is always over the same spot on the Earth (or other body). If you were on the Moon, the Earth would be in the same position in the sky at all times.
What is the adjective for rotation?
The word revolve (to go around, as in circles) can mean to turn, spin, or rotate. (*For planets, "revolve" is used to mean orbiting around a larger body, while "rotate" is used for the spin of the body itself.)
Why it seem to see the sun rotating around the Earth?
because earth is rotating around itself while revolving around the sun
How can earth be rotating and revolving at the same time?
Earth itself is rotating on a axis and it's revolving around the sun at the same time.
Which of these is an object that revolves around a body larger than itself?
satellite
Why is the sun moving in the sky when the earth is rotating around the sun?
The Earth itself is rotating @ 1 revolution per day -hence the 'Sun moving in the Sky': meanwhile the Earth is following an elliptical track around the Sun whilst itself spinning.
What effect does the earth rotating have?
idk if this is a question about the earth's rotation in itself, or if its about it's rotation around the sun. if it's around the sun, that's what gives us our four seasons. if its rotating within itself, it's what gives us night and day.
Why is a nebula rotating?
Because the star that blew it off of itself was rotating. Conservation of rotational momentum.
Does the earth revolve around the earth?
If you are asking if earth are revolving around itself, the answer is yes, it does. The earth is not only orbiting around the sun, it's also rotating around it's own axis.
Why does the space station move so fast?
The speed of its apparent movement are determined by its orbit. The closer to Earth, the faster it appears to move. Satellites in low earth orbit (such as the ISS) orbit around 150 miles up, and take about 90 minutes to complete one orbit. Since the world is about 25,000 miles around, that means that a LEO satellite is moving about 18,000 miles per hour. Geosynchronous communications satellites are about 23,000 miles up and orbit once in 24 hours. Since the Earth itself turns in just 24 hours, a geosynchronous satellite appears to be stationary in the sky.
How is the satellite in a space shuttle kept in the correct orbit around the Earth?
Well because of its forward motion. The definition of gravity is an attraction between 2 or more objects. The gravity from Earth is pulling the satellite towards earth or it is falling down. Now it becomes awkward..... The forward motion of the satellite will make itself fall around the Earth or it goes in an orbit.HOPE I HELPED!!!!!
What is the largest thing that moves around in circles?
Technically, there are entire galaxies that "orbit" around one another. There are super galaxies called "Giant Ellipticals" around which smaller galaxies move about. The problem is that it becomes a question of relativity, as in, what is the center of the universe (or is there even one?) or what is revolving what. There are some theories that speculate that the entire universe is rotating or "moving around itself".
How long does it take the milky way galaxy to revolve around the sun?
It doesn't. The Milky Way galaxy is 100,000-120,000 light-years in diameter. The Sun's mass is nowhere near large enough to make the entire galaxy revolve around itself. The Milky Way appears to revolve around us because of our position on Earth. The Earth spins incredibly fast, and is moving much faster than the sun, so therefore the Sun also appears to be rotating around us. However, the Sun orbits the Galactic core, once every (roughly) 226 million years.
How many satallites does the moon have?
None. The Moon itself is a satellite of the Earth.
