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Old July 22nd 14, 08:59 PM posted to sci.astro.amateur
oriel36[_2_]
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Default Time from Big Dipper/Polaris positions?

There are many loose ends to tie up in order to introduce the perspective at the most interesting astronomical time of the day when the central Sun is just out of sight and the planets and stars make themselves known to our view. At these star parties while telescopes are being set up for magnification, it gives a chance to turn victims of a rotating celestial sphere hobby into students who will smile as the annual motion of the stars behind the Sun (really the orbital motion of the Earth around the Sun) is explained to them -

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

The apparent stellar circumpolar motion of the stars obscures the annual motion of the stars as they enter the Sun's glare along the plane of the Earth's orbital motion -

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

As long as Venus is visible towards twilight,its orbital position as it swings out from behind the Sun and turns in towards the front of the Sun front left to right as opposed to the observation at dawn when it swings to its widest point and back in behind the Sun

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


Planets are defined specifically by their wandering motions against the background field of stars and this new and lovely way to look at Venus and Mercury is really suited for star parties as we enjoy the grandstand view of these planet's and their faster and closer motion around the Sun, much more so than the drawn out resolution of outer planetary retrogrades.

No surprise that this new facet of astronomy is received is a hostile way by those who can't extract themselves from the apparent stellar circumpolar motion of the stars and the idea that the Sun moves up and down through this celestial sphere. Again,many loose ends but that shouldn't stop observers from teaching the new narrative by demonstrating it using graphics which condense long term observations.