What factors affect last light?
Hi,
I came across this question and I am just wondering if anyone can give me an insight of what factors affect the time of last light?
Here is the question:
The time (UTC) of last light is affected by
a. latitude, date, cloud cover, reduced visibility, and terrain
b. longitude, date, cloud cover, reduced visibility, and terrain
c. latitude and date only
d. latitude, longitude, date, cloud cover, reduced visibility, and terrain
From what I read in the Navigation book, it says that the factors that affect the duration of daylight are the date and latitude, but I guess it also depends on the cloud cover, visibility, and terrain. My answer is A.
Any helps would appreciated.