Also
Rab already answered this in disput of janes attempt to asnwer.
The discussion involved the thickness of air limiting how far you can see thru the "haze".
Yet we can see stars on the horizon.
Similarly a low moon.
So the whole thing is bunk.
Also
One of the things I do not understand is the issue of the horizon on a flat earth.
I have asked the question several times , but so far I have failed to get answers (especially missing. are any from any FE).
The questions are :
(1) What is the definition or description of what the horizon is on a flat earth ?
(2) Where is the horizon on a flat earth ?
(3) Is the horizon on a flat earth always at some fixed distance from an observer ?
(4) If the distance to the horizon is not fixed on a flat earth, what would affect the estimates of measurements and how would they be made ?
One of the problems that puzzle me is this question about the distance an observer could see being limited by ''the thickness of the atmoplane'' . It would seem it would be impossible to see the horizon on a flat earth.
Any and all answers would be appreciated.From my somewhat limited experience at having been at sea, I have observed the horizon and have answers to what I have seen , which is definite proof that the earth is not flat.
In reference to rabinoz comment on seeing stars at the horizon clearly :
Survivors of the Titanic disaster, seated in their lifeboats, reported they saw. ''Stars rising and setting on the horizon.''