Polar night and a full moon

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

The reflected light of close to a full moon at the South pole is quite spectacular at the moment. Weather permitting, it is the only location on Earth where the change in phases can be seen in continuity for a number of days.

Gerald Kelleher wrote:
https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

The reflected light of close to a full moon at the South pole is quite
spectacular at the moment. Weather permitting, it is the only location on
Earth where the change in phases can be seen in continuity for a number of days.


I had an acquaintance in Zimbabwe who photographed a complete libation
decades ago.

On Tuesday, June 20, 2017 at 10:35:12 AM UTC+1, Mike Collins wrote:

Local noon is when the sun crosses the meridian. At the poles all meridians
converge. It's always local noon if the sun is visible at a pole.

Local noon is when a location is exactly midway to the circle of illumination as the surface turns each weekday towards and away from the Sun. Polar midday is when the North or South poles are exactly half way to the circle of illumination and that only happens on the Solstice.

https://epic.gsfc.nasa.gov/

The North pole and the Arctic circle and presently in full view but as the Earth turns in response to its orbital motion, the area will continue to diminish until the September Equinox when the North polar point will disappear from view.

With the moon on the opposite side of the Earth, the observers at the South pole experience the reflected light of the moon which turns out to be considerable at the moment. Everything here should be a normal astronomical discussion but in the hostile atmosphere of celestial sphere enthusiasts and theorist riff-raff, a discussion is close to impossible.

Gerald Kelleher wrote:
On Tuesday, June 20, 2017 at 10:35:12 AM UTC+1, Mike Collins wrote:

Local noon is when the sun crosses the meridian. At the poles all meridians
converge. It's always local noon if the sun is visible at a pole.

Local noon is when a location is exactly midway to the circle of
illumination as the surface turns each weekday towards and away from the
Sun. Polar midday is when the North or South poles are exactly half way
to the circle of illumination and that only happens on the Solstice.

https://epic.gsfc.nasa.gov/

The North pole and the Arctic circle and presently in full view but as
the Earth turns in response to its orbital motion, the area will continue
to diminish until the September Equinox when the North polar point will
disappear from view.

With the moon on the opposite side of the Earth, the observers at the
South pole experience the reflected light of the moon which turns out to
be considerable at the moment. Everything here should be a normal
astronomical discussion but in the hostile atmosphere of celestial sphere
enthusiasts and theorist riff-raff, a discussion is close to impossible.



Local noon is when the sun crossed the meridian. Since all meridians
converge at the poles it's always noon or midnight at the poles. It's even
noon at sunrise and sunset.

On Friday, July 7, 2017 at 1:32:36 PM UTC+1, Mike Collins wrote:
Gerald Kelleher wrote:
On Tuesday, June 20, 2017 at 10:35:12 AM UTC+1, Mike Collins wrote:

Local noon is when the sun crosses the meridian. At the poles all meridians
converge. It's always local noon if the sun is visible at a pole.

Local noon is when a location is exactly midway to the circle of
illumination as the surface turns each weekday towards and away from the
Sun. Polar midday is when the North or South poles are exactly half way
to the circle of illumination and that only happens on the Solstice.

https://epic.gsfc.nasa.gov/

The North pole and the Arctic circle and presently in full view but as
the Earth turns in response to its orbital motion, the area will continue
to diminish until the September Equinox when the North polar point will
disappear from view.

With the moon on the opposite side of the Earth, the observers at the
South pole experience the reflected light of the moon which turns out to
be considerable at the moment. Everything here should be a normal
astronomical discussion but in the hostile atmosphere of celestial sphere
enthusiasts and theorist riff-raff, a discussion is close to impossible..



Local noon is when the sun crossed the meridian. Since all meridians
converge at the poles it's always noon or midnight at the poles. It's even
noon at sunrise and sunset.

The Sun comes into view at the Equinox at the South pole and sets on the opposite Equinox -

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

When the South pole turns across the fully illuminated face of the Earth it arrives at Polar noon on the Solstice when its position is exactly either side of the circle of illumination whereas its Northern counterpart is at polar midnight.

It doesn't really matter if you are prepared to ignore the polar day/night cycle with its rotational cause and when it combines with daily rotation creates the seasons at our latitudes, it would normally delight decent people who take pride in their ability to reason properly whereas you and others don't.

On Friday, July 7, 2017 at 6:04:30 AM UTC-6, Mike Collins wrote:

I had an acquaintance in Zimbabwe who photographed a complete libation
decades ago.

ITYM libration. That is an astrophotography project that
requires time and effort. Photographing somebody having a drink
is trivial.

John Savard

On Fri, 7 Jul 2017 12:00:36 -0000 (UTC), Mike Collins
wrote:

Gerald Kelleher wrote:
https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

The reflected light of close to a full moon at the South pole is quite
spectacular at the moment. Weather permitting, it is the only location on
Earth where the change in phases can be seen in continuity for a number of days.


I had an acquaintance in Zimbabwe who photographed a complete libation
decades ago.

At home or in a pub?

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.

Chris L Peterson wrote:
On Fri, 7 Jul 2017 12:00:36 -0000 (UTC), Mike Collins
wrote:

Gerald Kelleher wrote:
https://www.usap.gov/videoclipsandmaps/spwebcam.cfm

The reflected light of close to a full moon at the South pole is quite
spectacular at the moment. Weather permitting, it is the only location on
Earth where the change in phases can be seen in continuity for a number of days.


I had an acquaintance in Zimbabwe who photographed a complete libation
decades ago.

At home or in a pub?


He was probably in a pub for some of the nights but I actually typed
lunation. Spell checker wins again! He's actually quite proud of the
photographs. When I see him at the ten yearly reunions of the Astronomical
Society he co-founded he always has a poster of the photos on display.

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. But the axial tilt means that sometime the ground
gets in the way of the sun and sometime it doesn't.
The polar winter does mean that you can see the true rotation of the Earth
with Polaris and Sigma Octantis marking the axis of rotation.
It's a pity the crappy south polar camera and intermittent service can't
show you this. But even if it did you'd lie about it.