Re: Planets and Stars - an idea

On Apr 18, 7:06 pm, "Terence Nesbit" <TerryK...@xxxxxxx> wrote:

Brian Davis chided me because the North Celestial Pole does not shift.  Does
he mean that the North Celestial Pole, Polaris in particular is static, or
that we do not have to adjust our telescopes to see Polaris over the course
of a year?  But, there are apparently times that even this star cannot be
seen from other points, so if the star does not move, what is moving?

You know, if you can't manage to go out and, you know, read a book,
why don't you do what I have my students do - actually go out and look
at the night sky? Like I said, all this can be verified with direct,
naked-eye observation, and some thought. It really requires remarkably
little in the way of "advanced science".

There's a reason this is taught in the fist week of a 100-level
astronomy class. Because it's that basic, and obvious.

--
Brian Davis

.

Relevant Pages

  • North Stars Unseen Companion Photographed
    ... Washington, DC-Light from the North Star, Polaris, has helped humans find ... "The star we observed is so close to Polaris that we needed every available ... Astronomers have known about it for about 50 years from analysis of light ... binary system and a single star located farther away. ...
    (sci.astro.amateur)
  • Re: Planets and Stars - an idea
    ... .html, it is only at the Northern most point only 2 out of 365 days, there can only be two assumptions we can come to: a) Polaris circles with the Earth; or b) the inference that Polaris even validates my point because it does not move and thus Earth barely does. ... An object 3.26 light years away would have a parallax of one second of arc (1/1,296,000 of a circle) as seen from earth. ... No star is actually closer than 4.6 ly, so the closest star moves by less than a second of arc over the course of a year, this is not perceptible, indeed it is barely measurable. ...
    (rec.arts.sf.science)
  • Re: (OT) Mensa isnt an acronym.
    ... Matthew Huntbach wrote: ... If a star is discovered in fact ... Polaris is, indeed, a binary star. ... There's also the matter of motivation you mentioned: ...
    (alt.usage.english)
  • Re: Everett refuted!!
    ... dwellers see in the sky. ... like to say that 12,000 years ago the North Star was Vega, which is ... I find that Vega approaches North Pole as close as approx. ... Polaris so those years may not indicate exact half period ...
    (sci.lang)
  • Re: Across the Universe
    ... Polaris will be jamming with the Beatles more than four centuries from ... no aliens could live on Polaris because ... They would probably need a planet, ... form that can survive on the surface of a star. ...
    (rec.music.gdead)