Images of the sky captured by enthusiastic stargazers can leave one in awe, but they can also be important teaching tools, especially when they are open to all. For its third astrophotography contest, the IAU Office of Astronomy for Education sought out images of the motions of the heavens: from the Sun’s path from across the sky through the year, to the movement of the stars in the night sky and the changing phases of Venus; as well as images taken with a smartphone. Each image breathtaking, each demonstrating an important concept. Modern imaging technology, from the simple smartphone to more sophisticated telescopes help to bring out great educational potential in these beautiful celestial images. Their power is even greater if the teachers and students realise that they were obtained, patiently and skillfully, using equipment that is commonly available.
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