IntermediateAstronomyCalendarPython+1
Astronomy Level 2
Back to the sky, a step deeper. Starts with the year - exactly how long it is, the leap-year rule, and how to write that rule in Python.
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About this course
Level 1 met the Sun, the Earth and the Moon, day and night, and the year. Level 2 comes back to the same ideas and goes further, with a little maths and a little code. It starts with the year: the Earth's trip around the Sun doesn't take a neat number of days, and our calendar has been chasing it for two thousand years. You will see why 1900 had no 29 February but 2000 did, and then write the leap-year rule as a short Python function.
