The moment immediately after the sun is first visible on the horizon
11
votes
2answers
365 views
How harmful is the rising/setting sun?
Often, while hiking, my companions and I treat the very early/late sun as being less harmful (as far as skin cancer and UV radiation are concerned). For example, we might not apply sunscreen ...
8
votes
2answers
87 views
How can I calculate the time of sunrise?
From time to time I enjoy taking hikes in the mountains to see a beautiful sunrise and sunset. When doing this, I always guess when the sun will rise that day and then I plan my tour accordingly. But ...
