March Equinox 2016

All planets possess a climate and that science is based on where the North/ Sot poles are in relationship to the orbital plane. This is an opportunity for modelers to work with variations between 0° and 90° inclination where 0° represents an exclusively Equatorial climate while 90° represents a totally polar climate . It is within this spectrum that all planetary climates can be described.

If the Earth had an 82° inclination like Uranus while retaining its daily rotation and orbital traits, the seasonal swings would be enormous across latitudes in that the Arctic and Antarctic circles would reside close to the Equator in representing the maximum circumference where total daylight and total darkness are experienced.

This is a proper use of the North and South polar latitudes rather than having them 'tilt' towards and away from the Sun. Of course all this depends on the most basic interpretation possible using the transition from darkness to daylight as a result of rotation. In the case of the North pole that will happen in a little over two weeks as that latitudes turns through the circle of illumination.

On Saturday, March 5, 2016 at 4:51:59 PM UTC, oriel36 wrote:

If the Earth had an 82° inclination like Uranus

Uranus has an inclination of 98 degrees - it is tipped past the horizontal, and rotates the opposite way on its axis to the Earth.

I have moved on from the insight where there are two separate transitions from darkness to daylight by virtue of dual surface rotations. With special attention given to the North pole on the March Equinox as that location turns through the circle of illumination and the Sun appears for the first time in 6 months.

The admission to discuss planetary climate is getting behind the enjoyable astronomical event of polar dawn or twilight depending where the Earth is in ts orbit as the polar points turn through the circle and to the visible Sun or the stars.

Encountering people who have lost the ability to reason is not pleasant and at a level where the cause of the transition of darkness to daylight and the visible Sun is ignored or botched.

On Thursday, March 3, 2016 at 5:51:48 PM UTC, wrote:


This means exactly the same as when you say "At the North pole in a few weeks it will be polar dawn where the Sun appears once on the Equinox as that location is carried around in a circle to the central Sun by the orbital behavior of the Earth. "

I wish you were a poor fool ,I truly do.

One polar point is always above the orbital plane and one is always below as these points are seen to turn in a circle each orbital circuit like so -

https://upload.wikimedia.org/wikiped...precession.svg

At this stage there is little point dealing with someone who cannot bring themselves to envision why the Sun appears at the North or South poles at their respective Equinoxes and the entire planet turns as a function of its orbital motion -

https://www.youtube.com/watch?v=okw6Mu3mxdM

After 6 months absent from view the South poles turns through the circle of illumination and the Sun appears.