Obviously the antimoon is a spherical body, since the shadow on the moon during a lunar eclipse is round, and only a sphere produces a round shadow in any direction. I have a few other questions:
1. Does the antimoon lie on the same plane as the moon's orbit?
2. How is the antimoon positioned on the line of nodes from the sun to the moon?
3. Why can't we observe the antimoon during a lunar eclipse?
4. What does the antimoon orbit?
The Antimoon is not a spherical body, I believe it is flat.
The Antimoon lies slightly below the Moon's locus. The Moon does not orbit.
The line of nodes? As far as I understand, the meaningful existence of this imaginary line is a contingency of the theory that the Moon orbits around a Round Earth. If not, please clarify.
We can observe the Antimoon during a Lunar eclipse. It's the big dark thing moving in front of the Moon.
The Antimoon doesn't orbit anything. The concept of orbit is made up, it doesn't actually happen, gravity is not real.