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Why does light from stars arrive at a telescope as parallel rays?
Ninjabarbie
Many objects in space are so far away, that by the time their light arrives on Earth, the light rays are effectively parallel.
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∙ 12y ago
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What are the instruments that use in studying stars?
1. telescope 2. radio telescope 3. space telescope 4.spectroscope 5. television camera 6. Observatories
Why is light from stars and planets considered to be parallel light?
The Sun, planets and stars are extremely far away from us ; hence, the rays reaching us diverge only very slightly. This results in parallel light rays, for all practical purposes.
What telescope uses an antenna and a receiver to study the stars?
A radio telescope has an antenna and a receiver to study the stars. Radio waves are part of the same radiation spectrum as light, and they are emitted by many celestial bodies. Analysis of radio emissions can give us information over and above what can be obtained from light.
What have you found out by using the hubble telescope?
They found out what the stars are made of and they also got to see billions of light years away which was never possible.
What will you see in space?
When in space and looking out, the observer will see a lot of black. Light will come from stars and galaxies, and will be reflected from planets or other bodies around, but the rest of the "sky" will be black. Light will arrive at the observers position without being scattered by atmosphere. Dust and some gas can appear to glow when looked at through a telescope, but to the naked eye, it's really black out there.
What enters a telescope and gives us information on stars?
light?
What are the instruments that use in studying stars?
1. telescope 2. radio telescope 3. space telescope 4.spectroscope 5. television camera 6. Observatories
The light from distant stars and other objects can be distorted in many ways which type of optical telescope best avoids the problem caused by distortion?
Space Telescope such as the Hubble Space Telescope
Why is light from stars and planets considered to be parallel light?
The Sun, planets and stars are extremely far away from us ; hence, the rays reaching us diverge only very slightly. This results in parallel light rays, for all practical purposes.
Why could you see the stars but not the planetes?
you can see mars and Jupiter but they look like stars unless you use a telescope ------------------------ Because stars shine - give off light - while planets do not.
What telescope uses an antenna and receiver to study the stars?
A radio telescope has an antenna and a receiver to study the stars. Radio waves are part of the same radiation spectrum as light, and they are emitted by many celestial bodies. Analysis of radio emissions can give us information over and above what can be obtained from light.
What telescope uses an antenna and a receiver to study the stars?
A radio telescope has an antenna and a receiver to study the stars. Radio waves are part of the same radiation spectrum as light, and they are emitted by many celestial bodies. Analysis of radio emissions can give us information over and above what can be obtained from light.
Why is the Hubble space telescope in space and not on Earth?
Because the earths atmosphere tends to block and stir up some of the light from stars and so by having a telescope not in the atmosphere no light is blocked and there are no air currents or density differences so you can see more than a telescope on the ground.
How does a telescope help astronomers see more stars?
A telescope has a larger gathering area (the main lens, or the main mirror) than the human eye. This makes it possible to see the light of fainter objects. Another thing the telescope does is to increase angular resolution. This makes it possible, in some cases, to see two stars that are close together as two stars, whereas the human eye would see them as a single spot of light.
Who first thought of using a telescope for looking at the stars?
Galileo is the first thought of using a telescope for looking at the stars.
What type of telescope uses visible light emitted by a star to make it seem closer?
"Optical" telescopes use visible light. But if they're used to observe stars, then their purpose is not to make the stars seem closer.
What is an Optical Telescope for?
It is used to observe features of stars, planets, and other celestial objects by their visible light (generated or reflected).
