What is the name of the method of determining coordinates from the position of the sun and time?

Question

Astronomy

A few years ago, there was an article on Habré about a program that made it possible to determine the location of the observer from a photograph in which the Sun is visible and the time of shooting is known.
I forgot what this method is called, so I can’t find either the article or the program.
In my opinion, the method starts with the letter A ...
If anyone remembers this article or method, tell me

Answer 1

I remembered this word - Analemma.
But there are no articles on Habré anymore.
And they say that what appeared on the Internet does not disappear anywhere.
Here's the proof - information from the Internet disappears!

Answer 2

For an accurate calculation, you need to know not only the time, but also the height above the horizon (the sextant is just for this) and the azimuth to the sun (hello to the compass).
Instead of azimuth, you can make two height measurements at different times, or measure the height at exactly noon (but then you need to at least approximately understand where you are).
It is not always possible to accurately determine the height above the horizon from a photograph, and the horizon itself is often overwhelmed, which will also negatively affect accuracy. There is no azimuth in the photo at all.
In general, it's easier on GPS.