POV-Ray : Newsgroups : povray.binaries.images : Orrery 2nd take : Re: Orrery 2nd take Server Time
13 Aug 2024 15:31:28 EDT (-0400)
  Re: Orrery 2nd take  
From: Will W
Date: 14 Apr 2003 23:13:39
Message: <3e9b78e3@news.povray.org>
"Jet Jaguar" <jja### [at] worldnetatt> wrote in message
news:euim9v4kpegiob0b6p7aemlgve9gncimbc@4ax.com...
> On Sun, 13 Apr 2003 17:37:48 +0100, Bill Hails
>
> Actually the symbols should progress in a counterclockwise manner,
> that's the way it was represented on all the orreries I used for
> reference for the one I made for the "Worlds Within Worlds" IRTC round
> (http://www.irtc.org/ftp/pub/stills/2002-02-28/orrery.jpg)

That would be right if the orreries were revolving in a counterclockwise
direction. Someday when Ive got an astronomy book at hand, I'll have to
check that out.

>
> To read an orrery, the current sign (and month, if marked) is the one
> directly opposite the Earth.  That is, it's indicated by a line drawn
> from the Earth through the center of the Sun.  That's something I
> didn't find out until after it was submitted, and therefore my signs
> are rotated 180 degrees (D'oh!).

Yes, that's why its called the Sun Sign, because the Sun's apparent position
is in that sign for the month.

Probably the absence of Jupiter would be considered a larger technical flaw
than whether the dance is deosil or widdershins. But I don't think that
detracts from the artistic merit of the work.


--
Will Woodhull
Thornhenge, SW Oregon, USA
willl.at.thornhenge.net


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