Answer: The difficulties faced in using ground-based telescopes due to which it does not make good quality observations are:
Intensity of light rays reaching the Earth’s surface decreases as some of the light is absorbed by the atmosphere
.
What is ground based optical telescope?
The next round of advances in ground‐based optical and infrared astronomy can only be made with larger telescopes or arrays of telescopes. New mirror designs make possible telescopes much larger than any in existence.
What are problems with ground based telescopes?
In addition, turbulent motion in the atmosphere blurs the light travelling through it, causing objects to twinkle and appear fuzzy. Another problem with ground-based telescopes is that they are
subject to local weather conditions
, and high clouds can ruin the chance of making any useful observations.
What are the disadvantages of a ground based telescope How does the space telescope help us to overcome these disadvantages?
In space, however, telescopes are able to geta clearer shot of everything from exploding stars to other galaxies. Another disadvantage for ground-basedtelescopes is
that the Earth’s atmosphere absorbs much of the infrared andultraviolet light that passes through it
. Space telescopes can detect thesewaves.
What is a ground based telescope used for?
Ground-based observatories, located on the surface of Earth, are used
to make observations in the radio and visible light portions of the electromagnetic spectrum
. Most optical telescopes are housed within a dome or similar structure, to protect the delicate instruments from the elements.
Why is Hubble so expensive?
On Hubble’s Anniversary, A Look Up And A Look Back
Part of the reason the telescope is so expensive is that
a bunch of technologies had to be invented just to make it work
, and it was hard to estimate their costs upfront.
What is an important discovery that has been made by the Hubble Space Telescope?
Here are some of its major contributions to science:
Helped pin down the age for the universe now known to be 13.8 billion years, roughly three times the age of Earth
. Discovered two moons of Pluto, Nix and Hydra. Helped determine the rate at which the universe is expanding.
What are two types of optical telescopes?
- Refracting telescopes, which use lenses and less commonly also prisms (dioptrics)
- Reflecting telescopes, which use mirrors (catoptrics)
- Catadioptric telescopes, which combine lenses and mirrors.
What are the advantages of optical telescopes?
- Affordable and Available.
Optical telescopes
use mirrors or lenses or both. They work with visible light which is the easiest to observe. … - Easy to Use.
Optical telescopes
are very convenient to use. … - Visual Treat.
Optical telescopes
are a visual treat.
How far can optical telescopes see?
The Hubble Space Telescope can see out to a distance of
several billions of light-years
. A light-year is the distance that light travels in 1 year.
What is the disadvantage of 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.
How beneficial is ISS?
The ISS not only serves as a testing ground and stepping stone for future human space exploration, it also
enables technological and scientific advances
that provide substantial benefits for humanity back on Earth.
What are the disadvantages of reflecting telescopes?
Reflecting telescopes have a few disadvantages as well. Because they are normally open, the mirrors have to be cleaned. Also,
unless the mirrors and other optics are kept at the same temperature as the outside air, there will be air currents inside the telescope that will cause images to be fuzzy
.
Where is the best place to put a telescope on Earth?
Astronomers now have a new potential location to try to avoid the twinkling. Only one problem though: it’s really cold, especially this time of year. A team of astronomers from Canada, China, and Australia have identified
a part of Antarctica
as the ideal place to put observational telescopes.
What kinds of astronomy can be done from the ground?
Ground-based telescopes
avoid the risk of putting telescopes in the orbit through rockets. The ground-based telescopes are mostly used to study the stars, which emit visible light or radio waves that are not blocked either by the ozone layer or by the water and carbon dioxide in the upper atmosphere of the Earth.
What types of telescopes are ground-based?
- Anglo-Australian Telescope.
- Arecibo Observatory.
- Extremely Large Telescope (ELT)
- FAST Telescope.
- Gemini North Telescope.
- GranTeCan Telescope.
- Keck Telescope.
- LIGO.
