This was a day on which I really wanted sunshine. The four days in the year that I care about more than others are solstices and equinoxes, and today is the autumn equinox. I started when the Sun was at its northernmost. And today, and hour and a half after these photos, the Sun would be directly over the equator heading south and we’re technically in autumn. (With hindsight I should have cared as much about the crossover point of the figure of 8, on 29th August/12th April, but we’ll get to that in the spring).
Course that doesn’t help me place this exactly on the map. Goodness knows its position moves fast at this time of year, causing the nights to draw in and all that. The shadow had certainly skipped north across the river, but where exactly? Here it is in the photo:
I mean honestly. So I tried to see where Google Maps had me:
And I tried to align that with the a line from me to the north tower of Tower Bridge. And I scooted round north and south either side of the bridge to try to get an idea of the east-west component. I’d have been useless at the longitude problem. Still, a tag’s a tag and we’ll see how it goes.
Shard Analemma 