The Inclination, not to be confused with the 23 degree 'axial tilt' of the earth, describes the orbital plane of the earth.All of the planets orbits are irregular. Although roughly circular, the...
The Earth is at the same angle, summer or winter. In winter the nearest pole to you is facing slightly away from the sun as the Earth moves in its orbit, in summer your nearest pole faces slightly...
The earth orbits the sun in the ecliptic plane with the other planets orbiting relatively close to the ecliptic.
Its inclination (axial tilt) of about 23.4 degrees gives rise to the seasons on...