Observing the Sky

In this lesson, we will be exploring the various tools and techniques used by astronomers to study celestial objects in the sky. We will start by reviewing the electromagnetic spectrum and how it relates to the study of celestial objects. Then, we will delve into the different types of telescopes and instruments used in astronomy, including the main differences between ground-based and space-based telescopes. Lastly, we will explore the various techniques used by astronomers to study celestial objects, including imaging, spectroscopyThe study of how matter interacts with electromagnetic radiation. Depending on what radiation is used there are different types of spectroscopy UV, NMR, IR. Note mass spectroscopy does not actually utilise electromagnetic radiation but is still referred to as spectroscopy., and interferometry.