Chapter 3 focuses on telescopes, from their design, to how their physical location affects their use, to the use of filters and how data are retrieved from images. Lastly, the chapter looks at how the...Chapter 3 focuses on telescopes, from their design, to how their physical location affects their use, to the use of filters and how data are retrieved from images. Lastly, the chapter looks at how the brightness of astronomical objects is determined.
