Checkmate heliocentric zionist degenerate sodomites 🤓
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That's the projector equipment. But, the telescope is on a tract. All the movements are circular.
A planetarium does not have a telescope. Planetariums are only theatres; observatories are what house telescopes, and their domes are designed to open and rotate to allow a telescope to move to all angles.
Angles aren't round, but we use a protracter to measure them on 360°.
The very definition of angle requires circularity/roundness. A protractor is a tool built atop that definition.
That's a super cool way to put that concept.