what are the difficulties in using ground based optical telescope ? how are they overcome?
Answers
Answer:
Answer. The difficulties in using ground based optical telescopes is that environment which preserves life on Earth also intervenes with a telescope's image quality. The components and particles in the Earth's environment curve the light so that pictures discovered from observatory telescopes seems to be blurred
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.
To overcome the above problems, telescopes are now being erected in space itself. Some of the telescopes in space are:
Hubble telescope: It is an optical telescope launched by the National Aeronautics and Space Administration in 1990. It is orbiting the Earth at a height of 589km from it and has a mirror of diameter 94 inches.
Chandra: It is an X-ray telescope launched by the National Aeronautics and Space Administration in 1999. Special mirrors that can reflect X-rays are used in this telescope.