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Are you sure it was the right way to do it? :p
I'm totally not saying you could be wrong, I just don't really understand your logic in the post...
I can't say if they really do it as I've not been on that plane but that time would be impossible on a flat earth.
Problem. That puts Polaris 1.26º above the horizon at 5,000 km from the north pole ( 0.63º at 10,000 km). At 5,000 km from the north pole, Polaris is 45º above the horizon.
The 111 Km is the vertical distance of the north pole to Polaris, in what would be flat graph.
originally posted by: Phage
a reply to: theMediator
Problem. That puts Polaris 1.26º above the horizon at 5,000 km from the north pole ( 0.63º at 10,000 km). At 5,000 km from the north pole, Polaris is 45º above the horizon.
The 111 Km is the vertical distance of the north pole to Polaris, in what would be flat graph.
The only way Polaris can be at 45º at 5,000 km and at 0º at 10,000 km is if the world is round. That's one reason people have known the world is round for a very long time. And a very good reason it is.
So, for the flat earth model to fit, with the fact that most of the southern hemisphere doesn't see Polaris, it would have to be only at 111km vertically from the North Pole.
What?
At the time I calculated, I had seen information that a 30~ degree angle of view was the start of truly seeing stars in the sky.
In the calculations I did, Polaris would be seen at a 27 degree angle from 1 degree north of the Ecuador if it was only 111Km vertically from the North Pole.
What? I can't remember if it was because of the angle of the horizon or because of light pollution but starting from a zero degree ground, one would see the stars from 30~ degrees in the sky from anywhere.
originally posted by: Phage
At the time I calculated, I had seen information that a 30~ degree angle of view was the start of truly seeing stars in the sky.
originally posted by: DenyObfuscation
a reply to: theMediator
In the calculations I did, Polaris would be seen at a 27 degree angle from 1 degree north of the Ecuador if it was only 111Km vertically from the North Pole.
No. From about 10000 km, a 27° angle would place Polaris about 5095 km above the pole.
Am I using this wrong? www.carbidedepot.com...
In a theorical flat plane, how many Kilometers in the sky do you think Polaris would need to be, to be seen down to 27 degrees in the sky from someone standing 1 degree north of the Ecuador?
originally posted by: LostThePlot
There's a very simple way to determine whether the Earth is flat or not.Next time you go to the beach, look at the horizon and watch as ships slowly disappear and appear.
Without a telescope, the same would happen on a plane
that time would be impossible on a flat earth.
originally posted by: Phage
Why would you want to know that? Polaris is not at 27º near the Equator. At 1º north of the equator, Polaris is about 1º degree above the horizon.