Question

an adtronomer discovered a new planet rotating on its own axis n revolving around star in 256 days.it rotates in 10 days.its axis id perpendicular to earth.water strong possibility​

Answer 1

Answer:

A sidereal day is the time it takes for the Earth to rotate about its axis so that the distant stars appear in the same position in the sky. A solar day is the time it takes for the Earth to rotate about its axis so that the Sun appears in the same position in the sky. The sidereal day is ~4 minutes shorter than the solar day

Our planet Earth rotates around its axis from west to east. An axis is an imaginary line that runs from the North Pole to the South Pole. If you look on the Earth from the northern hemisphere, it rotates counter clockwise. One complete rotation around its own axis relative to the Sun is called a solar day and has a duration of 24 hours. Our Earth doesn’t rotate just around its own axis, but it also orbits in the same direction around the Sun and moves a little bit on orbit every day. Therefore the Earth gets in the same position relative to the celestial stars in a shorter time. This is called a sidereal day which has a duration of 23 hours 56 minutes and 4.1 seconds. This is the reason why the stars appear about four minutes earlier in the sky every day. A sidereal day is a period that takes the Earth to rotate around its axis so that the distant stars appear in the same position in the sky.

Our planet rotation

The point at which a planet is closest to the sun is called perihelion. The farthest point is called aphelion.

Earth’s rotation around its axis results in the alternation of day and night. Earth also moves around the Sun on the ecliptic plane in an elliptical orbit. This movement along with the fact that its axis is tilted to the ecliptic plane is causing the changing of seasons. But Earth’s rotation and speed is even more complex: There is a long term slowing of its rotation due to the tidal forces of the Moon and Sun. As a result of the precession (a slow movement of an axis of a spinning body around another axis due to a torque such as gravitational influence, casuses a change of direction of the first axis) and nutation (a periodic variation in an inclination of an axis of a rotating object) the change of a rotational axis direction