|
|
|
Cloud Cover
|
| 100% |
90% |
80% |
60% |
50% |
30% |
20% |
Clear |
20% or better to enjoy, Iridium flairs
|
|
Transparency
|
| Poor |
Below |
Average |
Above |
Excellent |
Average or beter for wide angle photography, Auroras
Excelent for telephoto photography, constelations and comets
|
|
Seeing
|
| Bad |
Poor |
Average |
Good |
Excellent |
|
|
Darkness
|
| -4 |
-3 |
-2 |
-1 |
0 |
1.0 |
2.0 |
3.0 |
3.5 |
4.0 |
4.5 |
5.0 |
5.2 |
5.4 |
5.6 |
5.8 |
6.0 |
|
|
Wind
|
| Storm |
Strong |
Moderate |
Breezy |
Light |
Calm |
|
|
Humidity
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| % |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
85 |
90 |
95 |
% |
|
|
Temperature
|
| C |
-35 |
-30 |
-25 |
-20 |
-25 |
-10 |
-5 |
0 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
C |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| F |
-31 |
-22 |
-13 |
-4 |
5 |
14 |
23 |
32 |
41 |
50 |
59 |
68 |
77 |
86 |
95 |
104 |
F |
|
