Polar night and a full moon

On Saturday, July 8, 2017 at 1:05:41 AM UTC+1, Mike Collins wrote:
Gerald Kelleher wrote:
The polar day/night cycle mirrors the daily day/night cycle in terms of
features such as dawn, sunrise,noon, sunset and twilight although,
understandably, the lengths of the respective event apart from the
dramatic sunrise/sunsets events which are singular at the equinoxes.

Trying to explain the polar day/night cycle with a 'tilting' Earth ain't
going to happen so it remains only to find genuine astronomers who can
work with the new perspective and a dynamic that has been there long
before life began on Earth.


Fatuous rubbish! The day night cycle at the poles is just an extreme of
that seen at the equator.

This is why it is simply not worth dealing with you or the other dull minds while the forum remains the only outlet for the insight that if daily rotation is subtracted, the entire surface of the Earth would turn once each orbit in response to its orbital motion. The hubble imaging of Uranus turning in two distinct ways to the central Sun has been superseded within the last few years by the EPIC satellite which has the Earth's fully illuminated side constantly in view -

https://www.youtube.com/watch?v=CFrP6QfbC2g

Without the singular rotation in response to the Earth's orbital motion around the Sun it is impossible to discuss the seasons,climate, any electromagnetic influence on the planet and dozens of other topics that have yet to surface.

On Friday, July 7, 2017 at 9:48:50 PM UTC-7, Gerald Kelleher wrote:

if daily rotation is subtracted, the entire surface of the Earth would turn once each orbit in response to its orbital motion...

.... and there you have that extra sidereal day every year! Congrats on this amazing discovery...

On Saturday, July 8, 2017 at 6:23:55 AM UTC+1, palsing wrote:
On Friday, July 7, 2017 at 9:48:50 PM UTC-7, Gerald Kelleher wrote:

if daily rotation is subtracted, the entire surface of the Earth would turn once each orbit in response to its orbital motion...

... and there you have that extra sidereal day every year! Congrats on this amazing discovery...

Well my dear Paul, the days of throwing lovely information after bad are over for me so I am content with expanding on the traits of the singular orbital surface rotation and particularly in respect to the polar day/night cycle.

Not only daily rotation but all its traits are subtracted however two places on Earth currently satisfy these conditions, namely the North and South poles. From an orbital surface rotation perspective, those points turn a distance each year equivalent to the Arctic/Antarctic circles but with a rotation that is parallel to the orbital plane.

As the Arctic circle is 10,975 miles in circumference, transferred to the orbital surface rotation, the poles turn at an average rate of 30 miles each 24 hour day however as orbital motion varies in speed, the orbital surface rotation is sometimes more and sometimes less than the 30 miles per day value. It is this inequality when combined with constant daily rotation that creates the inequality in the natural noon cycle.

If you can explain polar sunrise as a single event with polar sunset 6 months later by alternative means then be my guest but easier to just accept a separate rotation to daily rotation as the cause.

The relationship between the moon's orbital motion around the Earth, the Earth's orbital motion around the Sun tied to the orbital surface rotation is fascinating -

https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

http://www.moongiant.com/phase/today/

The whole thing is ignored from the polar day/night cycle and its rotational cause to the effects of the reflected light during the night part of that cycle.

It is so unfortunate that they chose to use a useless webcam at the South Pole insofar as the pitch black sky and the aurora should be visible presently and weather permitting -

https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

The moon has moved out of view at the South Pole thereby Polar darkness has been re-established and the first hints of Polar dawn should show up soon until polar sunrise on the September Equinox.

What is worth a mention is the current NASA view of the polar points which is at variance from observation and experience -

"There are no total solar eclipses at Earth’s North or South Poles.
In fact, there is nothing especially unique about these locations from an astronomical standpoint." NASA

https://eclipse2017.nasa.gov/

The polar points are astronomically spectacular for the polar day/night cycle alone and its rotational cause. At this stage nobody should be led by the nose, least of all the scientists at NASA, on this dynamic and its effects at the poles and lower latitudes where it combines with daily rotation.

On Saturday, 8 July 2017 07:23:55 UTC+2, palsing wrote:
On Friday, July 7, 2017 at 9:48:50 PM UTC-7, Gerald Kelleher wrote:

if daily rotation is subtracted, the entire surface of the Earth would turn once each orbit in response to its orbital motion...

... and there you have that extra sidereal day every year! Congrats on this amazing discovery...

I'm still waiting for an apology from 1461.
I waited on one side of the road for the No131 bus..
It passed in the middle of the road at several hundred MPH because of surface differential rotation.
Sometimes I wish 1461 would stand in the middle of the road.
His verbal discharge would then become inaudible.
Due to a combination of the differential Coriolis and Doppler effects as each latitude slid smoothly past the other. ;-)

The 'telescope 'camera is especially abysmal in the one place on Earth that can look constantly into space as the Sun remains out of view from Equinox to Equinox

https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

To be aware how valuable this location is despite its desolation for human existence softens the complaint but then again it takes people interested in astronomy to expand on these insights.