The bigger the telescope is, the better its resolving power, and the better its light gathering ability (the ability to see faint objects).
Q. What is one reason astronomers like to build large telescopes?
The reason astronomers keep building bigger and bigger telescopes is that celestial objects—such as planets, stars, and galaxies—send much more light to Earth than any human eye (with its tiny opening) can catch, and bigger telescopes can detect fainter objects.
Table of Contents
- Q. What is one reason astronomers like to build large telescopes?
- Q. Which of these are the two reasons to build larger telescopes?
- Q. Is the atmosphere good or bad for astronomers trying to use telescopes?
- Q. Does a larger telescope reduce atmospheric blurring?
- Q. What is a major disadvantage of refractors?
- Q. What are the advantages and disadvantages of reflecting type telescope over the refracting type telescope?
- Q. What is the one limitation of reflecting over refracting type telescope?
- Q. What are three advantages a reflecting telescope have over a refracting telescope?
- Q. Which telescope has the highest magnification?
Q. Which of these are the two reasons to build larger telescopes?
Larger telescopes collect more light and allow you to see greater detail. Telescopes make objects appear larger. Larger telescopes allow astronomers to see farther into space.
Q. Is the atmosphere good or bad for astronomers trying to use telescopes?
Clearly the air is an important optical element. Add the miles of air that the light wave traverses before it even gets to the telescope, and it’s a wonder that we can see any detail at all on objects above our atmosphere.
Q. Does a larger telescope reduce atmospheric blurring?
The more atmosphere there is above a telescope, the greater is the turbulent motion and the poorer is the seeing. This is one reason why research telescopes are located on very high mountains. Speckle interferometry can get rid of atmospheric distortion by taking many fast exposures of an object.
Q. What is a major disadvantage of refractors?
What is a major disadvantage of refractors? The objective is subject to chromatic aberration.
Q. What are the advantages and disadvantages of reflecting type telescope over the refracting type telescope?
The two advantages of a reflecting telescope over a refracting telescope are as follows: (i) There is no chromatic aberration in case of reflecting telescopes as the objective is a mirror. (ii) Spherical aberration is reduced in case of reflecting telescopes by using mirror objective in the form of a paraboloid.
Q. What is the one limitation of reflecting over refracting type telescope?
(i) Refracting telescope suffers from chromatic aberration as it uses large sized lenses. (ii) The image formed by refracting telescope is less brighter than the image formed by the reflecting type telescope due to some loss of light by reflection at the lens and by absorption.
Q. What are three advantages a reflecting telescope have over a refracting telescope?
List three advantages of reflecting telescopes over refractors.
- Allows all colors to be focused.
- Mirrors can be very large.
- Glass problems do not affect light entering in.
Q. Which telescope has the highest magnification?
Best Telescopes with Excellent Magnification: A Complete Review
- Meade Instruments – Polaris 90mm.
- Orion 10015 StarBlast 4.5.
- Celestron – Astro Master 76EQ.
- Celestron – Power Seeker 127EQ.
- Celestron – NexStar 130SLT.
- Celestron – NexStar 8SE.
- Celestron – 70mm Travel Scope.
- Ecoopro Telescope.
