Meanwhile, down at the South Pole

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

Polar night has now set in and the magnification guys would have a ball spending the polar night for months on end (24/7) observing to their hearts content.

It will probably take longer for people to come around to surface rotation to the Sun behind the polar day/night cycle than the recent racetrack analogy for the inner planets adopted by sources outside the forum however it becomes enjoyable with familiarity and that is all that matters.

On Tuesday, May 17, 2016 at 8:18:53 AM UTC-4, oriel36 wrote:
http://www.usap.gov/videoclipsandmaps/spwebcam.cfm

Polar night has now set in and the magnification guys would have a ball

Freezing them is more likely.

Some people are addicted to being offensive when they lack any individual talent themselves but what I post is beyond all that and exists in isolation hence having graffiti sprayed on a topic happens in an unmoderated forum and even though the subject matter is robust, the individual pieces are fragile to a mind not accustomed to handling these principles.

The South Pole station is ideal for observing the inner planets around the Equinoxes before the Sun comes into view or has just left and the constant and extended dawn and twilight around that time.

On 5/17/2016 9:10 AM, oriel36 wrote:
Some people are addicted to being offensive when they lack any individual talent themselves but what I post is beyond all that and exists in isolation hence having graffiti sprayed on a topic happens in an unmoderated forum and even though the subject matter is robust, the individual pieces are fragile to a mind not accustomed to handling these principles.

The South Pole station is ideal for observing the inner planets around the Equinoxes before the Sun comes into view or has just left and the constant and extended dawn and twilight around that time.







YOU posted it here

pompous .... look it up

On Tuesday, May 17, 2016 at 4:31:34 PM UTC+1, David Staup wrote:
On 5/17/2016 9:10 AM, oriel36 wrote:
Some people are addicted to being offensive when they lack any individual talent themselves but what I post is beyond all that and exists in isolation hence having graffiti sprayed on a topic happens in an unmoderated forum and even though the subject matter is robust, the individual pieces are fragile to a mind not accustomed to handling these principles.

The South Pole station is ideal for observing the inner planets around the Equinoxes before the Sun comes into view or has just left and the constant and extended dawn and twilight around that time.







YOU posted it here

pompous .... look it up

You all have the distinguishing feature of missing out on the partitioning of retrograde resolution between the inner and outer planets but at least someone was reading and got it partly right -

"Put more plainly, pretend you're Earth, watching Mercury run around a track. As it runs its loop, it will start out moving from the left side of your field of vision to your right. Then, it rounds the corner and, although not moving backward, is now running from right to left. This analogy is oversimplified because it doesn't take into account the fact that Earth is also moving, but it gives a good idea of how this optical illusion plays out.

All of the planets exhibit apparent retrograde motion, although it plays out slightly differently for planets farther from the sun than Earth versus those, like Mercury, that are closer to the sun than Earth."

http://www.cbsnews.com/news/the-trut...t-human-lives/

Mercury makes roughly 4 circuits of the Sun each year hence overtakes the Earth each time as it moves from left to right of the Sun and goes into retrograde insofar as the forward/backward motion against the stars uses a retrograde term including the 'round the corner' observation that is now easily observed -

https://www.youtube.com/watch?v=MdFrE7hWj0A

This is true astronomical innovation that people can use at any time of the year yet the motion of Mercury and Venus seen from the South pole over an extended period will be spectacular when some bright spark gets around to it.

On Tuesday, May 17, 2016 at 9:31:34 AM UTC-6, David Staup wrote:
On 5/17/2016 9:10 AM, oriel36 wrote:

The South Pole station is ideal for observing the inner planets around the
Equinoxes before the Sun comes into view or has just left and the constant and
extended dawn and twilight around that time.

Apparently he deleted this post. Which is just as well. A station at the South
Pole would hardly be "ideal" for observing the planets at _any_ time of year,
since even if one were dressed warmly and it was night, the planets would
likely be quite near the horizon, if not below it, with all that implies for
the quality of seeing.

John Savard

The people who will some day come to understand the closed loop of the inner planets and the open-ended loops of the outer planets seen from a moving Earth will follow in these footsteps as the original heliocentric astronomers once did -

http://www.popastro.com/images/plane...ary%202012.jpg

http://apod.nasa.gov/apod/image/0312..._tezel_big.jpg

The period around the Equinoxes at the South pole and just as the Sun is out of sight at either dawn or twilight is an excellent time to keep the inner planets in view and they complete their circuits.Not just the motion of Mercury and Venus but also the change in position relative to the central Sun as the stars get lost in polar twilight on the March Equinox and emerge at Polar dawn around the September Equinox

The outer planets moving left to right (retrograde) against the background stars has a different cause than the inner planets as the Earth overtakes these slower moving planets -

http://apod.nasa.gov/apod/image/0112/JuSa2000_tezel.gif

On Tuesday, May 17, 2016 at 2:52:42 PM UTC-4, Quadibloc wrote:
On Tuesday, May 17, 2016 at 9:31:34 AM UTC-6, David Staup wrote:
On 5/17/2016 9:10 AM, oriel36 wrote:

The South Pole station is ideal for observing the inner planets around the
Equinoxes before the Sun comes into view or has just left and the constant and
extended dawn and twilight around that time.

Apparently he deleted this post. Which is just as well. A station at the South
Pole would hardly be "ideal" for observing the planets at _any_ time of year,
since even if one were dressed warmly and it was night, the planets would
likely be quite near the horizon, if not below it, with all that implies for
the quality of seeing.

There was an article in S&T, long ago, when dinosaurs roamed the Earth, about an amateur astronomer who overwintered in Antarctica, although not at the South Pole. The author mentioned how bad the seeing was. He did seem to enjoy many compensating factors during his observing sessions, however.

The closed loop of the inner planets are striking and although Galileo didn't have that sequential facility he understood the balance between the light and dark phases which kept the planet from becoming appreciably brighter as it approached the Earth in our slower moving orbit -

http://www.masil-astro-imaging.com/S...age%20flat.jpg

"But the telescope plainly shows us its horns to be as bounded and distinct as those of the moon, and they are seen to belong to a very large circle, in a ratio almost forty times as great as the same disc when it is beyond the sun, toward the end of its morning appearances.

SAGR. 0 Nicholas Copernicus, what a pleasure it would have been for you to see this part of your system confirmed by so clear an experiment!

SALV. Yes, but how much less would his sublime intellect be celebrated among the learned! For as I said before, we may see that with reason as his guide he resolutely continued to affirm what sensible experience seemed to contradict. I cannot get over my amazement that he was constantly willing to persist in saying that Venus might go around the sun and be more than six times as far from us at one time than at other times as at another, and still look always equal, when it should have appeared forty times larger." Galileo


Galileo's use of the word 'experiment' in an astronomical sense seems out of context with today's meaning however it is enough to recognize that in the 400 years since Galileo made the observation that today's observers have no intention of developing these visual treats and placing them in a proper setting.