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Old September 6th 13, 04:09 PM posted to sci.astro.amateur
oriel36[_2_]
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Default Orbital dawn 2013

On Friday, September 6, 2013 3:26:13 PM UTC+1, Lord Androcles, Zeroth Earl of Medway wrote:
"oriel36" wrote in message

...



http://www.esrl.noaa.gov/gmd/webdata...dlfullsize.jpg



So,anyone else care to explain to students the dynamic behind this event and

why,in 6 months time,the Sun will slowly move out of the picture as roughly

6 months of darkness envelops the location.



===========================================

In six months time we'll be approaching equinox once again,

the Sun will rise in the NNE and and set in the NNW as seen

from the web cam once again.


I am sure the magnification guys think the reason for orbital dawn is because the Earth turns quickly at the equator and slow at the poles hence 6 months of daylight followed by 6 months of darkness.

http://www.esrl.noaa.gov/gmd/webdata...dlfullsize.jpg


That spectacular image at the South Pole station offers a window into the orbital behavior of the Earth and it is truly and utterly disgraceful that the community with students in their tutelage refuse to accept the dynamic arising from the orbital motion of the planet.

This would be an issue of international law where not that even the correlation between all the effects within a 24 hour cycle and one rotation of the planet as a cause is denied and it must bother some people despite the childishness of the magnification guys never mind the empiricists.

Anyone else want to explain why orbital dawn arrived at the polar latitude over the last few weeks ?