| OBSERVING STATISTICS |
| July - December 2004 |
| |
| |
Clear Nights* |
Photometric Nights |
Number of Observation Hours |
Average Temperture (ºC) |
Average Wind Speed (m/s) |
Average Humidity (%) |
| July |
21 |
10 |
181.5 |
16.5 |
4.4 |
54.3 |
| August |
19 |
10 |
220.6 |
17.1 |
5.0 |
52.7 |
| September |
18 |
9 |
211.3 |
13.7 |
5.1 |
61.7 |
| October |
9 |
3 |
179.7 |
8.3 |
6.2 |
67.0 |
| November |
17 |
8 |
227.1 |
2.7 |
4.8 |
66.5 |
| December |
8 |
5 |
107.1 |
-2.0 |
5.4 |
87.0 |
| |
| Total number of clear nights from July 1 to December 31, 2004: 92 |
| *A clear night is when the sky is 70% clear for more than 6 hours |
| Comments and suggestions to U. Thiele (uthiele@caha.es) |
