How can rotation with same phase be possible?

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The discussion centers on the concept of the moon's rotation and its consistent phase as observed from Earth. The moon rotates on its axis while simultaneously orbiting the Earth, which results in the same face always being visible. This phenomenon occurs due to synchronous rotation, where the moon's rotational period matches its orbital period of approximately 28 days. The phases of the moon are determined by the relative positions of the Sun, Moon, and Earth, not by the moon's rotation. The thread was ultimately locked due to redundancy, as similar questions had been previously addressed in another discussion.
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How can we calculate the rotation without seeing change of phase of object like in case of moon,we see the same phase of moon but how it can be rotating.
So rotation without change of phase is possible if yes or no than how and why ?.
 
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akashpandey said:
How can we calculate the rotation without seeing change of phase of object like in case of moon,we see the same phase of moon but how it can be rotating.
So rotation without change of phase is possible if yes or no than how and why ?.
The moon rotates around the Earth. If it did not rotate on its axis, how could it keep the same face towards the Earth?
 
So rotation depends on what face you are seeing?
Or moon's rotation is different kind of rotation?
 
The phase of the moon depends on the angle Sun-Moon-Earth...

moon angle.jpg


This changes with a cycle lasting about 28 days because that's how long the moon takes to orbit the earth.

The phase of the moon does not depend on the rotation of the moon about it's own axis. The light and dark areas are not painted onto the surface of the moon :-)
 
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akashpandey said:
How can we calculate the rotation without seeing change of phase of object like in case of moon,we see the same phase of moon but how it can be rotating.
So rotation without change of phase is possible if yes or no than how and why ?.

why are we discussing this again ?

in your other thread in the astronomy section
https://www.physicsforums.com/threads/spin-or-rotation-of-moon.907744/

this was all answered for youDave
 
Please do not create duplicate threads. If there is anything you still don't understand, just ask in the thread you already have. Thread locked.
 

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