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It's orbit.
With respect to the earth itself (disregarding the earth's orbital displacement during a rotation), it forms a circle or, more specifically, a line of latitude.
A point. In fact it is fixed point and the locus of all points, in a plane that is a fixed distance from that fixed point defines the circle.
The boiling point of water is fixed but boiling points depends on the atmospheric pressure.
To turn around a centre point is to rotate.
A rotation turns a shape through an angle at a fixed point thus changing its coordinates
Rotation
A rotation turns a shape through an angle at a fixed point and it is called a transformation.
Rotation around a point, or spherical motion, is the motion of a rigid body during which one of its points O remains fixed, while all the other points move along the surface of spheres with their center at point O. During such rotation of a rigid body, any elementary displacement of the body is an elementary rotation around some axis passing through point O and called the instantaneous axis of rotation. This axis, unlike a fixed axis, is constantly changing its direction with time. As a result, the rotational motion of a rigid body consists of a series of elementary rotations about instantaneous axes that are constantly changing direction. An example of such rotation is the movement of a gyroscope.
Measure the angle in a plane perpendicular to the axis of rotation, between the position of a fixed point at the start and end of the rotation.
A rotation turns a shape through an angle at a fixed point as for example if you turn around backwards that will be a rotation of 180 degrees.
A rotation turns a shape through an angle around a fixed point usually on the Cartesian plane
A rotation turns a shape through an angle about a fixed point
It's orbit.
It means turning around a fixed point or axis.
A rotation.
If its position relative to a fixed point is changing