GENERAL KNOWLEDGE

Detailed explanation-1: -Spectroscopy is a fundamental tool that astronomers use to study the Universe. Spectrographs are instruments that are used to conduct spectroscopy. They provide scientists with the data they need to analyse the materials that make up stars, nebulae, galaxies and the atmospheres of planets.

Detailed explanation-2: -Joseph Fraunhofer, for example, mounted a prism in front of the objective lens of a small telescope, making a crude spectroscope. He found that when light from the sun and bright stars like Sirius was analyzed there were characteristic absorption lines present in the spectrum produced.

Detailed explanation-3: -Telescopes are tools that use curved lenses or mirrors to capture and focus light. … It is of the reflector type and has a mirror with a diameter of 10, 4 meters-located at a height of 2.267 meters, always under conditions of open sky and free of clouds. It is capable of observing very distant galaxies.

Detailed explanation-4: -A spectrograph is an instrument used to obtain and record an astronomical spectrum. The spectrograph splits or disperses the light from an object into its component wavelengths so that it can be recorded then analysed.