Valladolid, Spain
Tuesday 22 March 2011
by
March 2010
 |
Valladolid | Spain | CEIP Narciso Alonso Cortes | 41°39’N | 04°42’W |
| x/+ | Date | Gnomon | Shadow | Angle |
|---|---|---|---|---|
| x | march 17th | 100 cm | 95 cm | 43°31’ = 43.531° |
| x | march 18th | 100 cm | 90.5 cm | 42°08’ = 42.145° |
| x | march 21st | 100 cm | 88.5 cm | 41°30’ = 41.509° |
| + | march 20th | 100 cm | 89.4 cm | 41°48’ = 41.8° |
x : measure
+ : estimation
A big dispersion of the results, but the calculated angle for march 20th is quite good : 41.8°
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