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...simple pair of binoculars. So as long as you know where to find the objects that you're interested in, there's always something fascinating to look at in the night sky. JO JARVIS: So let's go for it. Let's see what we can find in the night sky. During the course you will have the opportunity to use a powerful telescope located in Tenerife to take your own images of some...

...simple (greyscale) astronomical image. The data are stored as an x, y grid, where each pixel has an associated brightness. Additional information, such as the astronomical coordinate system and details of when the observation was made, is typically stored within the image file as metadata. We need to employ careful methods to make measurements from images such as Figure 1...