Practical astronomy projects for every level of expertise
With the drama of Mars disappearing behind the Moon last month, interest in occupations - when one Solar System body moves in front of a more distant astronomical object - is at a high. Most commonly occupations involve stars or a planet, but they can be, for example, an asteroid occulting a star. The common factor is that light from the distant object is blocked for a short time as the occulting body passes in front of
