2007-01-23 08:01:38 · 4 answers · asked by roxie 1 in Science & Mathematics ➔ Astronomy & Space
Star trails in the northern hemisphere all describe a circular pattern around the North Star, which is a fixed point in the center of the trails. This is consistent with the stars appearing fixed against the heavens with the earth rotating on its axis, and with the north end of the axis pointing to the North Star.
2007-01-23 08:16:46 · answer #1 · answered by Jerry P 6 · 0⤊ 0⤋
If you want an evidence not needing to look at the stars themselves, the Foucault pendulum is a way of verify the rotation of Earth. The fixed starts represents the spatial reference.
If you mount a pendulum in the North pole, it rotates 360 degrees in 24 hours.
2007-01-23 16:42:05 · answer #2 · answered by Jano 5 · 0⤊ 0⤋
The mere fact that it does rotate.
The speed and direction of that rotation.
The tilt of the Earth's axis in relationship to stellar bodies, such as the sun.
2007-01-23 16:09:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋
When you look at the north star, the stars surrounding it orbits counter-clockwise.
2007-01-23 16:12:26 · answer #4 · answered by juicyfruit 2 · 0⤊ 0⤋