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The deviation between axial and orbital orientations are presently
almost at their maximum and minimum as terrestial longitudes passing through the line denoting the orbital orientation of the Earth mesh with each other at dawn and dusk while at noon,the deviation is at its maximum of 23 and a half degrees. The event is annually unique insofar as the relationship between axial and orbital motions are asymmetrical from Mar to Sept as compared to Sept to Mar,not from a hemispherical view but from a true global view. http://www.fourmilab.to/earthview/satellite.html The slight adjustment to viewing changing orbital orientation against fixed axial orientation rids genuine investigators of the really embarrassing view of viewing cyclical seasonal norms from variable axial tilt against the Sun or orbital plane involving hemispherical Earth descriptions. It is time for astronomers to help people appreceate the astronomical mechanism for cyclical seasonal climate variations using a 21st century view rather than the erroneous hemispherical view .It is one thing to express concern for climate imbalances with working principles which take account of climate bands which straddle the Equator and move to the poles from temperate to Artic,it is quite another to split the globe into seperate hemispheres and try and work with climate change that way. The Equionox alignment is enjoyable but that luxury should be set aside for the working principles which emerge from taking it in terms of a global view rather than a hemispherical split in seasons.Nobody is going to claim priority for that is not the point,it is a matter of making the effort to help frame global climate imbalances in an accurate framework involving the best of human reasoning whether astronomical or terrestial. |
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