Milankovitch theory
Milankovitch theory
Milutin milankovitch (1879-1958) Oil painting by paja Jovanovic in 1943 in Bel belgrade (V as ko Milakovitch Collection Melbourne, australia)
Milutin Milankovitch (1879-1958) Oil painting by Paja Jovanovic in 1943 in Belgrade (Vasko Milakovitch Collection, Melbourne, Australia)
Definitions eccentricity obliquity precession
Definitions: eccentricity obliquity precession
The eccentricity defines the shape or flattening of the orbit The obliquity measures the angle between the Earth's axis of rotation and the perpendicular to the ecliptic Precession--the change in the direction of the Earth's axis of rotation. i e. the axis of rotation behaves like the spin axis of a top that is winding down; hence it traces a circle on the celestial sphere over a period of time
The eccentricity defines the shape or flattening of the orbit. The obliquity measures the angle between the Earth's axis of rotation and the perpendicular to the ecliptic. Precession—the change in the direction of the Earth's axis of rotation, i.e., the axis of rotation behaves like the spin axis of a top that is winding down; hence it traces a circle on the celestial sphere over a period of time
Variation in Orbital Eccentricity eccentricity =0 eccentricity=5 During one year the Earth is running along an quasi-elliptic orbit around the Sun. The eccentricity of this orbit characterising its flattening is slowly changing through time from 0(a circle) to 6%at the maximum In this diagram the eccentricity has been largely exagerated to show how the orbit is changing with eccentricity, the semi-major axis(a) being kept constant
During one year the Earth is running along an quasi-elliptic orbit around the Sun. The eccentricity of this orbit characterising its flattening is slowly changing through time from 0 (a circle) to 6% at the maximum. In this diagram the eccentricity has been largely exagerated to show how the orbit is changing with eccentricity, the semi-major axis (a) being kept constant