- 1 What is not an advantage of the Hubble Space Telescope?
- 2 Why do astronomers build telescopes on remote mountaintops?
- 3 Why are telescopes put on top of mountains or in space?
- 4 What is the best reason to put a visible light telescope in space instead of on the ground quizlet?
- 5 What are the 2 drawbacks of a space telescope?
- 6 What is the main advantage of the Hubble Space Telescope?
- 7 What are two key advantages of space telescopes?
- 8 Where is the best place to put a telescope on Earth?
- 9 Can you look at mountains with a telescope?
- 10 Why do radio telescopes not have to be placed high up a mountain?
- 11 Why are Observatories dome shaped?
- 12 What is the main method used to record telescope observations?
- 13 What are 2 ways our atmosphere limits what astronomers can detect?
- 14 How do professional telescopes record images today?
- 15 How does the resolution of a telescope depend on its focal length?
What is not an advantage of the Hubble Space Telescope?
Which of the following is not an advantage of the Hubble Space Telescope over ground-based telescopes? It is closer to the stars. Which of the following wavelength regions cannot be studied with telescopes on the ground?
Why do astronomers build telescopes on remote mountaintops?
The observatories are built on mountain tops because there is less atmosphere at a higher elevation. The air is dry which means there is less water vapor that refracts light and less light distortion. Also, the air is cleaner so there is smaller atmospheric turbulence which is causing image distortion too.
Why are telescopes put on top of mountains or in space?
The reason large telescopes are built on tall mountains or put in space is to get away from the distortion of starlight due to the atmosphere. Because of the elevation, the telescopes are above most of the water vapor in the atmosphere, so infrared astronomy can be done.
What is the best reason to put a visible light telescope in space instead of on the ground quizlet?
only radio waves, visible light, and small parts of the infrared spectrum can be observed from the ground. Therefore the most important reason for putting telescopes into space is to allow up to observe the rest of the electromagnetic spectrum.
What are the 2 drawbacks of a space telescope?
The disadvantages are mainly to do with the hassle of operating in space. It’s much more expensive, so you can’t have such a large telescope. If things go wrong it’s much harder to repair them. You can’t update the instruments so often so they quickly become out of date.
What is the main advantage of the Hubble Space Telescope?
The Hubble telescope provides four key advantages over most other optical astronomical facilities: unprecedented angular resolution over a large field, spectral coverage from the near infrared to the far ultraviolet, an extremely dark sky, and highly stable images that enable precision photometry.
What are two key advantages of space telescopes?
Space telescopes have the advantage of being above the blurring effects of the Earth’s atmosphere. In addition, there are many wavelengths from the electromagnetic spectrum that do not reach Earth because they are absorbed or reflected by the Earth’s atmosphere.
Where is the best place to put a telescope on Earth?
For optical telescopes, most ground-based observatories are located far from major centers of population, to avoid the effects of light pollution. The ideal locations for modern observatories are sites that have dark skies, a large percentage of clear nights per year, dry air, and are at high elevations.
Can you look at mountains with a telescope?
Yes. Most consumer telescopes can be used for terrestrial viewing (or at least the ones I have used) and are often utilized for wildlife viewing or other uses for extreme telephoto requirements.
Why do radio telescopes not have to be placed high up a mountain?
Radio and optical telescopes can be used on Earth, but some resolution is lost due to Earth’s atmosphere. Their telescopes must therefore always be positioned high above the ground or in space. Infrared telescopes are placed on mountaintops, far above the low-lying water vapor that interferes with infrared light.
Why are Observatories dome shaped?
Observatories have different requirements. The only reason to have a dome is to keep the instruments from rain, snow, and direct sunlight, and you want the inside of the dome to be the same temperature as the outside otherwise you have air currents which mess up observations.
What is the main method used to record telescope observations?
Photoelectric photometry using the CCD is now frequently used to make observations through a telescope. These sensitive instruments can record the image nearly down to the level of individual photons, and can be designed to view in parts of the spectrum that are invisible to the eye.
What are 2 ways our atmosphere limits what astronomers can detect?
Earth’s atmosphere blocks most radiation at wavelengths shorter than visible light, so we can only make direct ultraviolet, X-ray, and gamma ray observations from space (though indirect gamma ray observations can be made from Earth).
How do professional telescopes record images today?
Today, the image is generally detected with sensors similar to those in digital cameras, recorded electronically, and stored in computers. This permanent record can then be used for detailed and quantitative studies. Professional astronomers rarely look through the large telescopes that they use for their research.
How does the resolution of a telescope depend on its focal length?
How does the resolution of a telescope depend on its focal length? The longer the focal length, the better the resolution. The image quality of most optical telescopes is limited by atmospheric refraction experienced by light as it passes through the Earth’s atmosphere. The telescope collects light over a larger area.