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There are actually a number of different techniques that are used to estimate the distances of various astronomical objects. You can study the spectrum of the light (or any electromagnetic emission) from that object, and determine how much of a Doppler red shift there is (it's almost always a red shift, very few objects are approaching the Earth) and since the general rate of expansion of the universe is known, we can determine from the size of the red shift how far away something is. If the nebula is associated with a Cepheid variable star, then from the rate of variation and the brightness of the star, we have another clue. And, if we observe the nebula at two different seasons of the year, when the Earth is at opposite sides of the solar system, we may be able to get some parallax for a geometrical calculation, but that depends upon how far away the nebula is; if it is extremely far away, we don't have enough parallax to do it.
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What is a name for the apparent movement of a star used to measure its distance from earth?
parallax
What is the apparent movement of a star used to measure its distance from earth?
This is called PARALLAX.
Why did the Au is not used to measure distances on earth?
AU is not used to measure the distances on earth, because a astronomical unit is a unit of measurement equal to the distance between Earth and Sun. So that's why you cannot use Au for measure the distances on Earth.
Apparent movement of a star used to measure its distance from earth?
The absolute magnitude of a star is the amount of light received by earth?
Is a light year measured in distance?
Not really. A light year is a measure of distance. It is the distance light can travel in one earth year, about 6 trillion miles
What is the distance from earth to the crab nebula?
The distance from Earth is about 6,500 light years (2000 parsecs).
Are stars at the center of the milky way closer to earth that Orion nebula?
Distance to center of Milky Way: about 26,000 light-years. Distance to Orion Nebula: about 1,300 light-years.
How far is the nebulae from the sun?
The Orion Nebula is a distance of 1,344 ± 20 light years from the Earth. Based on the plus or minus 20 light years, it doesn't matter if you measure from the Earth or the Sun. The accuracy is within the tolerance range.
What is used when astronomers measure the distance from the sun to the earth?
Parallax is the method that astronomers use to measure the distance from the sun to the earth.
Is a nebula further from earth than a galaxy?
Earth is IN a galaxy - as is the nebula.
How far is the proxima centauri to earth by walking?
The distance between two points is the distance between them. It doesn't depend on the method an object uses to move between the two points. It also doesn't depend on what route an object follows between them, or even whether or not anything moves between the two points. The distance between the earth and the Orion Nebula is the distance, even though no object has ever moved between the earth and the Orion Nebula.
What is the distance from earth to the sun in Celsius?
Celsius is a measure of temperature, not distance.
What mathematical equation describes how to measure the distance from earth to the moon using earths diameter as a unit of measure?
The mathematical equation which describes how to measure the distance from Earth to the moon using Earth's diameter as a unit of measure is d = Dcot(p/2)/2 Where d is the distance from Earth to the moon, D is the diameter of the Earth and p is the angle of parallax subtended at moon by the diameter of the Earth.
How far is trifid nebula from the Earth?
The Trifid Nebula is about 5,200 light years away from Earth.
How many normal years is Rigel from Earth?
"Normal Years" is a measure of time. "Rigel from Earth" is a measure of distance. There is no answer to this question.
Is the sun closer or farther to the earth than the Orion nebula?
Orion Nebula is much further from the earth than the Sun is.
How do you measure the distance from the earth to the sun?
with feet, or with km..... :P
