Dr. Astro, Quoting: emerald_glow
1. you claim above , that "field rotation is why the moon looked like a "u," not libration"
I found the definition of field rotation, and it says:
"Field rotation is the apparent rotation of a celestial object in the field of view of a telescope during the course of the night. All objects in the eyepiece field or on the camera’s image will move in arcs. It’s usually either ignored or not noticed for visual observations, but cannot be ignored for photography."
That is FIELD ROTATION refers to viewing an object in a TELESCOPE.
Wrong. You do not understand field rotation. Field rotation occurs in ANY non-polar aligned perspective, whether with a telescope or not. A telescope does not magically cause field rotation to appear, but a polar aligned telescope can eliminate field rotation as I already proved above. And as I already prove above, a telescope in not necessary to witness field rotation; the field rotated view was from a standard camcorder on a standard camera tripod, not a telescope.
Our observations of the U-MOON made directly, with nekd eyes, no telescope. Quoting: emerald
And will therefore be subject to field rotation; you are not viewing from a polar aligned perspective.
The animation, that we compare our observations to also simulates a naked eye observation. Quoting: emerald
No, it does not. It simulates the effect of phases and libration, that's it, it does not take into account field rotation since that depends on your location on the ground. It's impossible to simulate it simultaneously for everyone.
That concludes you cannot explain the U-Moon by Field Rotation. Quoting: emerald
Yes, I can, and I already did.
2. I watched your video, but your verbal notes offered no explanation HOW the field rotation effects the phenomenon we are talking about. Quoting: emerald
I explained it clearly. Clearly you do not understand field rotation since you think it requires a telescope. Field rotation causes the apparent "u-moon" phenomenon. I showed it back to back both from your normal non-polar aligned "naked eye" perspective, and from a polar aligned perspective sans field rotation. It doesn't get any clearer than that.