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  • September Equinox

    From [email protected]@21:1/5 to All on Fri Sep 17 01:06:58 2021
    https://www.youtube.com/watch?v=okw6Mu3mxdM

    The circumference where the Sun remains constantly out of view at the South Pole presently has now diminished to a small area surrounding the polar latitude, before the one and only unique sunrise on the September Equinox as that latitude turns into the
    light hemisphere of the Earth while its Northern counterpart turns into the dark hemisphere.

    Both polar latitudes turn parallel to the orbital plane as a reflection of the entire surface of the Earth, but this observation is swamped by the dynamic of daily rotation as that orientation shows a Southwest to Northeast motion to the orbital plane.
    On the March Equinox, that daily rotational orientation is from Northwest to Southeast so the Equinoxes are not 'equal' in this respect.

    It is not possible to consider the Earth science of climate without first appreciating the daily and hemispherical fluctuation in temperatures in response to the dual surface rotations of the planet. It means that when daily rotation and all its effects
    are subtracted, the entire surface of the planet or each location on the surface still turns once to the Sun each orbit as a function of the orbital motion of our home planet.

    Feel slightly uneasy that what looks like grandstanding is just the lack of contributors who can add to this more productive approach to the Equinox and Solstice milestones.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From [email protected]@21:1/5 to [email protected] on Fri Sep 17 05:13:24 2021
    On Friday, September 17, 2021 at 9:07:00 AM UTC+1, [email protected] wrote:
    https://www.youtube.com/watch?v=okw6Mu3mxdM

    The circumference where the Sun remains constantly out of view at the South Pole presently has now diminished to a small area surrounding the polar latitude, before the one and only unique sunrise on the September Equinox as that latitude turns into
    the light hemisphere of the Earth while its Northern counterpart turns into the dark hemisphere.

    Both polar latitudes turn parallel to the orbital plane as a reflection of the entire surface of the Earth, but this observation is swamped by the dynamic of daily rotation as that orientation shows a Southwest to Northeast motion to the orbital plane.
    On the March Equinox, that daily rotational orientation is from Northwest to Southeast so the Equinoxes are not 'equal' in this respect.

    It is not possible to consider the Earth science of climate without first appreciating the daily and hemispherical fluctuation in temperatures in response to the dual surface rotations of the planet. It means that when daily rotation and all its
    effects are subtracted, the entire surface of the planet or each location on the surface still turns once to the Sun each orbit as a function of the orbital motion of our home planet.

    Feel slightly uneasy that what looks like grandstanding is just the lack of contributors who can add to this more productive approach to the Equinox and Solstice milestones.


    That should be Northwest to Southeast referenced to the orbital plane presently for the September Equinox and Southwest to Northeast on the March Equinox-

    https://en.wikipedia.org/wiki/Deep_Space_Climate_Observatory#/media/File:EpicEarth-Globespin-tilt-23.4.gif

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From [email protected]@21:1/5 to All on Mon Sep 20 08:10:59 2021
    For as long as it lasts, the one and only sunrise at the South Pole as it turns parallel to the orbital plane and into the light hemisphere of the Earth is captivating-

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

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

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Gerald Kelleher@21:1/5 to All on Mon Sep 11 00:07:07 2023
    Dawn is well established at the South Pole with the Sun coming into view for the first time in six months in a little over a week-

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

    On the September Equinox, the South Pole will pass through the planet's divisor and into the light hemisphere of the Earth and subsequently create an expanding circumference, with the South Pole at its centre, where the Sun remains constantly in view-

    https://en.wikipedia.org/wiki/Deep_Space_Climate_Observatory#/media/File:EpicEarth-Globespin-tilt-23.4.gif

    There is no similar time-lapse for the March Equinox demonstrating the rotational orientation from Southwest to Northeast relative to the orbital plane and the Sun so imaging of Saturn will have to suffice-

    https://apod.nasa.gov/apod/ap210919.html

    The Earth's Equator nor Saturn's (as described in the article) does not tilt towards the Sun which would mean that the North/South Poles would also tilt thereby wrecking the observation that the Polar orientation remains fixed to an external point in
    space.

    The entire surface of a planet rotates relative to the orbital plane and the Sun as a function of its orbital motion. Neither Copernicus nor Galileo could resolve the issue using the working observations of the Ptolemaic framework, however, it can and is
    resolved now.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Gerald Kelleher@21:1/5 to All on Thu Sep 14 08:59:56 2023
    The South Pole is coming quite close to turning into the light hemisphere of the Earth as the Sun will come into view within the next week-

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

    "The third movement is the declination movement. For the axis of daily rotation is not parallel to the axis of the great circle but is inclined to it by such a part of the circumference, which in our time is almost 23 and a half degrees. Thus the centre
    of the Earth always remains in the plane of the ecliptic, i.e. on the circumference of a great circle, and its poles revolve, drawing small circles on both sides around the centres equidistant from the axis of the great circle. This movement, too, takes
    place over a period of almost a year and is almost equal to the revolution of the great wheel" Copernicus, Commentariolus

    Not only the polar latitudes but the entire surface rotates to the Sun hence the circumference where the Sun remains constantly out of sight at the South Pole has contracted to a small area and is replaced in a few weeks by an expanding circumference,
    with the South Pole at its centre, where the Sun remains constantly in view.

    There is nothing sullen or dull in all this, it is making use of satellite imaging and watching the South Pole traverse the light hemisphere over the next three months until it arrives at the midpoint to the planet's divisor on the December Equinox and
    creating the largest circumference where the Sun remains constantly in view ( Antarctic Circle).

    https://en.wikipedia.org/wiki/Deep_Space_Climate_Observatory#/media/File:EpicEarth-Globespin-tilt-23.4.gif

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

    Once again, genuine researchers have to work with what is in front of them so set aside the Earth with a pole sticking out of it or the monstrosity of a pivoting planetary divisor off the Equator and come to appreciate the modifications needed to support
    the original perspective of Copernicus in a more developed form.

    I won't always be around to keep this front and centre and planetary climate is dependent on getting the daily and seasonal cycles right first before applying planetary dynamics to planetary climate.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Gerald Kelleher@21:1/5 to All on Mon Sep 18 01:51:16 2023
    https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

    On the Equinox in a number of days when the Sun comes into view for the first time in six months at 90° latitude S, it will be seen to travel in the widest circle close to the horizon. As the months progress towards the December Solstice, that circle
    will become tighter and move further away from the horizon due to the North Pole and surrounding surface turning towards the Sun and parallel to the orbital plane.

    Explaining long-term weather ( the seasons) properly at our latitudes is a crucial gateway into climate research and using the expansion and contraction of circumferences where the Sun remains in view or out of sight with the North and South Poles at
    their centre is at the heart of this new explanation.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)