Happy Spring Equinox!
My plans this morning, as announced in the Telegraph, were to head to the top of a hill and catch the sun rising due east. Sadly, the air is cooler than its dewpoint… the humidity is greater than 100%… there is a low level of nimbostratus… however you want to put it: the weather is not very good and the visibility is terrible.
Had I been able to see the sun it would have risen due east. The vernal and autumnal equinoxes being the only two days of the year when the sun rises due east.
Something that you cannot notice on any individual day, but only by studying the sun’s rising position over the course of a year from the same location, is that its rising and setting positions are changing by more at this time of year than at any other time. Near the…
