Arras
Friday 21 December 2007 by perbosc
Table of contents
30 november 2007
date | city | lat. (°’) | lat.(dec) | gnomon | shadow | angle (°’) | angle (dec) |
30 nov | Arras | +50°17’ | +50,28° | 100 cm | 300 cm | +71°54’ | +71,89° |
30 nov | Lafranç. | +44°08’ | +44,13° | 100 cm | 224 cm | +65°56’ | +65,94° |
1 dec | Palma | +39°33’ | +39,57° | 100 cm | 185 cm | +61°36’ | +61,61° |
Lafrançaise-Arras
Angle difference | 71,89-65,94 = 5,95° |
Distance | 684 km |
Circumference of the Earth | 684x360/5,95 = 41385km |
Palma-Arras
Angle difference | 71,89-61,61 = 10,28° |
Distance | 1195 km |
Circumference of the Earth | 1195x360/10,28 = 41848km |
20 december 2007
Measurements
Time | Shadow |
---|---|
10h10 | 5,76 m |
11h20 | 3,87 m |
12h30 | 3,58 m |
12h40 | 3,46 m |
12h45 | 3,27 m |
12h50 | 3,20 m |
13h05 | 3,25 m |
13h10 | 3,32 m |
13h30 | 3,41 m |
13h45 | 3,54 m |
14h00 | 3,75 m |
date | city | lat. (°’) | lat.(dec) | gnomon | shadow | angle (°’) | angle (dec) |
20 dec | Lafranç. | +44°08’ | +44,13° | 100 cm | 240 cm | +67°22’ | +67,38° |
20 dec | Arras | +50°17’ | +50,28° | 100 cm | 320 cm | +72°38’ | +72,63° |
Lafrançaise-Arras
Angle difference | 72,63-67,38 = 5,25° |
Distance | 684 km |
Circumference of the Earth | 684x360/5,25 = 46903km |
21 december 2007
Measurements
Time | Shadow |
---|---|
10h40 | 4,85 m |
11h55 | 3,78 m |
12h35 | 3,52 m |
12h40 | 3,47 m |
12h50 | 3,35 m |
13h00 | 3,42 m |
13h20 | 3,58 m |
13h45 | 3,76 m |
14h00 | 3,84 m |
date | city | lat. (°’) | lat.(dec) | gnomon | shadow | angle (°’) | angle (dec) |
21 dec | Lafranç. | +44°08’ | +44,13° | 100 cm | 242 cm | +67°33’ | +67,55° |
21 dec | Arras | +50°17’ | +50,28° | 100 cm | 335 cm | +73°22’ | +73,37° |
Lafrançaise-Arras
Angle difference | 73,37-67,55 = 5,82° |
Distance | 684 km |
Circumference of the Earth | 684x360/5,82 = 42309km |
perbosc
This author's articles
Home page |
Contact |
Site Map |
Sign In |
Statistics |
visits: 1004585
en Archives 2005-2006-2007 2007 Winter ?