That picture depicts snapshots at the same sidereal (star-time) of the day.
The directions to the stars are the same in all cases, wheres the directions
to the Sun (i.e., the tropical or Solar time of day) changes over the year.
Your figure is slightly incorrect, though, in that I believe it shows the
axis of the Earth's rotation as being the ecliptic axis. This might very well
be a conscious short-cut by you, to produce the figure, and might not have a
bearing on your future argument. I don't mean to criticize your otherwise
correct and lucid figure.
Regards,
Regner
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Quoting Neville Jones <njones@xxxxxxxxx>:
>
>
>
>
>
> -----Original Message-----
> From: art@xxxxxxxxxx
> Sent: Wed, 14 Nov 2007 01:47:09 +1100
>
>
> Now, this is the important part - I am capitalizing it, so it doesn't get
> lost in this long post.
> ============================================================================
> I JUST SHOWED THAT THERE IS ONLY ONE SPIN AXIS (ROTATION = SPIN).
> THE AXIS OF THE DAILY ROTATION. THIS AXIS POINTS TO THE EQUATORIAL NORTH
> AND SOUTH POLES.
> THE ORBIT AROUND THE SUN IS A TRANSLATIONAL MOVEMENT.
> TRANSLATIONAL AND ROTATIONAL MOVEMENTS ARE FUNDAMENTALLY DIFFERENT.
> THERE IS NO WAY OF HAVING A TRANSLATIONAL MOVEMENT BEHAVE/SEEM/LOOK LIKE
> A ROTATIONAL MOVEMENT.
> THERE IS NO ROTATION AROUND THE ECLIPTIC AXIS.
> ============================================================================
>
> Regner,I have attached a diagram which I drew to illustrate what you are
> referring to (Camera movement 1 negative.gif). A representation of a camera,
> together with its optic axis, is duplicated on a small circle, which is
> itself positioned on a large circle. Please take a look at this and tell me
> whether I am depicting solar time increments or sidereal time
> increments.Regards,Neville.
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>
