That would be the "ecliptic plane".
FLAT
it is the ORBIT, I think...
There is no 'periodic' change in the earths orbit. The orbit is elliptical and over time (a great many years) becomes less so.
progressive cooling of earths surface. earths heat balance could change as orbit alters.solar radiation fluctuations, periodic changes in earth tilt and orbit. loss of heat from earths surface through reduction of carbon dioxide content of atmosphere. volcanic eruptions, short term cooling of globe could increase effect if lots erupted over longer periods of time. volcanoes and climate, the little ice age 1645-1715.
This titled position of the earths axis is known as inclination of the earths axis. The earth's rotation axis makes an angle of about 66.5 degrees with the plane of its orbit around the sun, or about 23.5 degrees from the perpendicular to the ecliptic plane.
the earths orbit because the earths orbit is the size of earth + the size of the moon
Earths Orbit? Earths Orbit?
The axis
Earths orbit around the sun is not unusual.
earths tempertures
Venus
orbit
earths tempertures
The earths orbit around the sun is almost circular.
Orbit
That imaginary line is called as "ORBIT".. Each space object spins around itself, in a particular path called as "ORBIT"
Orbit