![]() If we enter the latitude 0 degrees to determine the rotational speed at the equator, we find the rotational speed of a point at the equator is approximately 1037.6 mph.So, when a Buckeye fan is shouting O - H, their seat is moving at a pretty good speed. If we enter the latitude of Columbus, Ohio (39.961176 degrees) - home to THE Ohio State University - we find the rotational speed of the horseshoe stadium is approximately 795.3 mph.This takes into account the difference in from solar day attributed to the Earth's flight around the Sun. A sidereal day is the true period of a 360 degree rotation of the Earth in space. Then we can compute the instantaneous velocity of a point on the globe at the specified latitude, α, by dividing the distance traveled in one day (in one rotation of the globe) by the number of hours in a sidereal day ( 23.9344699 hours). R lat we have the distance a point rotates each day at the latitude given by `alpha`.Next, knowing the circumference of the circle whose radius is R lat is given by Circumference = 2 The top red line of the triangle is then the cosine of the angle, `alpha`, multiplied by the length of the right triangle's hypotenuse: We know from basic geometry that the two internal angles (`alpha`) in the figure are equal. These two radii crossed by the radius drawn diagonal from the center of the Earth to the specified latitude, form two internal opposite angles, `alpha`. The black line at the equator is parallel to the red radius of dimension R lat. ![]() Thus the radius of that circle at a specified latitude and the radius at the equator can be rotated in those parallel planes to be parallel lines - as drawn in the figure at the left. įirst we recognize the circle that is the equator and the circle created by the rotation of a point on the Earth at a non-zero latitude describe circles in parallel planes. This equation assumes a round Earth approximation and uses the WGS-84 value for the. This equation computes the rotational speed (S) of a point on the Earth defined by its latitude (`alpha`). Re is the equatorial radius of the Earth.s is the rotational speed at a latitude on Earth.The formula for the Rotational Speed at Latitude is: Note: latitude can be either north or south, but the effect on the rotational speed is the same. Based on one's latitude, the rotational speed can be computed. However, one's distance from the polar axis is a function of latitude. The rotation rate of the Earth is constant. Note: to convert from Degrees, Minutes and Seconds to Decimal Degrees, CLICK HERE. meters per second or kilometers per hour). However, this can be automatically converted to other velocity units (e.g. Rotational Speed (S): The calculator returns the Rotational Speed in miles per hour. ( α) Latitude (Latitude goes from 0 degrees at the equator to 90 degrees at either the North Pole or the South Pole).The Rotational Speed at Latitude calculator computes the rotational speed on the surface of the Earth based on the Earth's Rotation Rate and the latitude.
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