Shape: An ellipse. The excentricity is low, meaning that it's almost a circle. Dimensions: The radius of this "almost-circle" is the average distance from Earth to Sun, which is approximately 150 million kilometers (or 150 billion meters).
Ellipse
the earths orbit because the earths orbit is the size of earth + the size of the moon
earths tempertures
earths tempertures
An ellipse.
oval
Ellipse.
Ellipse.
There is no 'periodic' change in the earths orbit. The orbit is elliptical and over time (a great many years) becomes less so.
Ellipse
the earths orbit because the earths orbit is the size of earth + the size of the moon
Earths Orbit? Earths Orbit?
Earths orbit around the sun is not unusual.
earths tempertures
Venus
earths tempertures
a map