SOLAR SYSTEM

Detailed explanation-1: -The refracting telescope uses concave lenses to refract light and make objects appear big and bright. This helps astronomers see the stars, planets and moons.

Detailed explanation-2: -Infrared astronomy gives scientists the ability to measure the temperatures of planetary bodies, stars, and the dust in interplanetary space. There are also many molecules that absorb infrared radiation strongly. Thus the study of the composition of astrophysical bodies is often best done with infrared telescopes.

Detailed explanation-3: -Infrared telescopes may be ground-based, air-borne, or space telescopes. They contain an infrared camera with a special solid-state infrared detector which must be cooled to cryogenic temperatures. Ground-based telescopes were the first to be used to observe outer space in infrared.

Detailed explanation-4: -infrared telescope, instrument designed to detect and resolve infrared radiation from sources outside Earth’s atmosphere such as nebulae, young stars, and gas and dust in other galaxies.

Detailed explanation-5: -The Hubble Space Telescope can detect a portion of infrared and ultraviolet wavelengths as well as visible light. This is a portion of the Hubble Ultra Deep Field North image, which encompasses infrared, visible and ultraviolet wavelengths and shows thousands of galaxies.

Detailed explanation-6: -Water vapor in the Earth’s atmosphere absorbs most infrared radiation from space, so ground-based infrared telescopes must be sited at high altitude and in a dry environment to be effective; the Observatories at Mauna Kea, Hawaii, are at an altitude of 4205 m.

Detailed explanation-7: -The NASA Infrared Telescope Facility (IRTF) is one of the telescopes comprising the Maunakea Observatories on the Big Island of Hawai’i. The IRTF is a 3.2 meter telescope optimized for infrared observations.