Friday, July 5, 2013

This Friday is the day that the Earth is farthest from the Sun - 20minutos.es

class=”text”> Image courtesy of Solar Probe Plus spacecraft with the Sun in the background. (NASA / AP)

The Earth’s orbit around the Sun “is not circular, but describes an ellipse” said astronomer and Madrid Planetarium monitor Cesar Gonzalez, so there is a time in which the balloon is located at a minimum distance of the sun (perihelion) and another that is at the maximum distance (aphelion).

About 2 and January 3 is when Earth is closest to the Sun and perihelion occurs while on the 4th and 5th of July is when it is farthest.

no stations have to do with distance, but with the inclination of the axis of rotation of the Earth “It may seem strange that the day we are farther from the Sun is a summer day, but the stations do not have to do with the distance, but with the tilt of Earth’s rotation, “said Gonzalez, who added that neither is related to the solstices.

However, Earth’s orbit is an ellipse with an eccentricity very low, almost a circle, so that the difference in distance between the maximum and minimum time proximity represents less than 3% in relative terms and is imperceptible.

This Friday , at aphelion, the Earth is 152,097,984 miles from the sun , while at perihelion, which is occurred on January 2, the distance to the Sun was 147 097 984 kilometers, according to a Madrid Planetarium.

No comments:

Post a Comment