From jay bee Fri Sep 17 15:56:21 1999
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Date: Fri, 17 Sep 1999 16:08:12 -0700 (PDT)
From: jay bee
To: agathiyar@egroups.com
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Subject: [agathiyar] Re: ancient term for "apogee of the moon"
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Dear Chandra,

That's a momentous discovery that you have made.
This word is new to me.
It might be of interest to know that there are already several concepts
and facts that were no found in the pre-Copernican Indian astronomical
system.
It would be surprising that some were discovered (or rediscovered?)
recently.
There is a phenomena in which you would still see the sun above the
horizon, inspite of the fact that it had already in reality, gone below
it.
This is due to the refraction caused by the thick atmospheric layer.
You are seeing through a greater thickness of it because of the acute
angle of vision.
This effect is known as "kuvaayu" in Tamil. According to our system,
the kuvaayu effect is 4 minutes.
There are also others like Langeran's points, etc.
Only thing is that we have given certain other names which makes them
be mistaken for some mythical aspects.

Regards

Jayabarathi

--- "Chandrasekaran, Periannan"
wrote:
> I was surprised to note the following entry in the
> OTL:
> -------------
> tugkan2
> otl tugkan2 tugkan2 1. eminent man; 2. apogee of the
> moon
>
> -----------
> [apogee being the highest (or farthest) point in the
> moon's orbit around the
> earth (apo + gee < geos).]
>
> Of course that term is derived from the root word
> "thungkam" in the sense
> of "elevation";
> as evidenced by
> ----
> tugkam
>
> otl tugkam tugkam 1. height, elevation; 2. tip edge;
> 3. dignity,
> exaltedness, excellence; 4. breadth; 5. mounttain;
> 6. cleanliness, purity;
> 7. victory
> ----
>
> My question is how old is this term for that
> concept?
> Was it already employed in the pre-copernican days
> for a lunar aspect which
> was exhibited indirectly by the moon's circulation
> which is thought to have
> been unknown to humanity until Copernicus/Kepler?
>
>
> Chandra
>
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