Horace Heffner wrote:
> ...
>>>> "The third motion in inclination is consequently required. This
>>>> also is
>>>> a yearly revolution, but it occurs in the reverse order of the  
>>>> signs,
>>>> that is, in the direction opposite to that of the motion of the
>>>> center.
>>>>         
>
>
> The above just talks about the apparent slight daily apparent  
> retrograde motion of the stars due to the difference in the sidereal  
> day (23 h 56 m 4.1 s) vs the solar day. This is merely an aspect of  
> the earth rotating around the sun in the ecliptic.  See:
>
> http://scienceworld.wolfram.com/astronomy/SiderealDay.html
>
> The apparent motion of the stars is thus in the opposite direction of  
> the sun's motion, because at the same solar time very day the earth  
> has rotated a an extra 4 minutes so the overhead position has  
> advanced relative to the stars - making the stars appear to move  
> retrograde (backwards in relation to the sun's movement.)
>
> This is just a ramification of the earth moving in the ecliptic.
>   

And that is is an interpretation.
Look, these are matters of interpretation, and also of personal choice,
to a certain extent. And that's very important.
I don't have all the answers, nor do I pretend to have them. In fact,
this is an ongoing research project for me. One which interests me
particularly. Instead of denying that the Sun is moving, I would like to
understand that movement accurately, and also its causes.

I have provided some clues that can keep someone researching and
thinking for months, literally. That's the important aspect of all this,
as I see it.

Best regards,
Mauro

>
>   
>>>> These two motions are opposite in direction and nearly equal in
>>>> period.
>>>> The result is that the earth’s axis and equator, the largest of the
>>>> parallels of latitude on it, face almost the same portion of the
>>>> heavens, just as if they remained motionless.
>>>>         
>
>
> This says that the plane of the earth's motion (the ecliptic) is  
> almost fixed in relation to the fixed stars, and thus so are the  
> poles of the ecliptic.  This is just a non-geocentric description of  
> the plane of the ecliptic.
>
>
>
>
>   
>>>> Meanwhile the sun
>>>> seems to
>>>> move through the obliquity of the ecliptic with the motion of the
>>>> earth’s center, as though this were the center of the universe. Only
>>>> remember that, in relation to the sphere of the fixed stars, the
>>>> distance between the sun and the earth vanishes from our sight
>>>> forthwith."
>>>>
>>>>         
>>> To me this just means: the sun appears to move on the ecliptic
>>> because the earth moves around the sun in the plane of the ecliptic,
>>> and the stars do not appear to move because the distance to the sun
>>> is miniscule in comparison to the distance to the stars.
>>>
>>>       
>> That's only the last part of it. I recommend you to read it again.  
>> It is
>> also convenient to read the previous passages also.
>>
>> Best regards,
>> Mauro
>>
>>     
>
> Best regards,
>
> Horace Heffner
> http://www.mtaonline.net/~hheffner/
>
>
>
>
>
>   

Reply via email to