Re: analemma
- From: "Dale" <drdale_com@xxxxxxxxx>
- Date: Sun, 17 Dec 2006 09:16:06 -0800
sounds like Bob Yen is off his medication again
"oriel36" <geraldkelleher@xxxxxxxxx> wrote in message
news:1166051135.707717.246760@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
OG wrote:
"oriel36" <geraldkelleher@xxxxxxxxx> wrote in message
news:1166049376.768458.300940@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
This is incorrect -
"Similarly, the tilt in the planet's axis of rotation relative to its
orbital plane is the reason why we experience seasons and explains why
the sun is observed to rise to higher declinations at noon in the
summer and much lower declinations during the winter. "
You are using the variations in the arc of the Sun as denoting
variations in axial tilt but this is an incorrect way to approach what
is occuring.
Idiot
Can't even read what's in front of him.
Anthony's hemispherical description of variations in solar altitudes
denoting variable axial tilt is about as poor as an interpretation as
it gets at least in respect to the cause of hemispherical weather
patterns (seasons).
http://www.liverpoolmuseums.org.uk/nof/sun/images/high_low_sun.gif
The Equation of Time is a global noon correction which has nothing to
do with the Sun's altitude nor its description as variable axial
tilt.The only idiots are those who propose that variations in
daylight/darkness asymmetry constitute a component in the astronomical
correction which equalises the variations in the Total length of a day
to the equable 24 hour day.
The analemma is a meaningless exercise based on photographing the
Sun using a 24 hour clock intervals and it has absolutely nothing to
do with the Equation of Time.It is a dumb 17th century attempt to
squeeze out the noon reference which correlates clocks with axial
rotation as a principle in order to pin axial rotation directly to the
Ra/Dec system and celestial sphere geometry.
Do you really want our parent star to do an annual hoola just for you,
.
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