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- Original Message -
From: Ricardo Cernic [EMAIL PROTECTED]
To: sundial sundial@uni-koeln.de
Sent: Thursday, April 10, 2008 2:55 AM
Subject: Sundial classification
Hello All,
Does anybody can tell me where to find a sundial classification that takes
into account all possible characteristics
Hello All,
Does anybody can tell me where to find a sundial classification that takes into
account all possible characteristics?
- Principle (altitude, azimuth, hour angle)
- Position of the table
- Kind os stylus
- etc.
I'm looking for something like the classification used in biology
Hello Sara ,
even if late I try to write some considerations regarding your message
(5/1/2003)
Altitude sundials .
An altitude sundial must always have a movable element with the possibility
to be revolved around the local vertical direction. This element can be
or the dial surface or
On 17 Jan 2003, Sara Schechner [EMAIL PROTECTED] wrote:
At 07:51 PM 1/17/03 +, Ian Maddocks wrote:
Alt-az: a pin-gnomon: telling the time depends on both the
altitude
and azimuth of the sun to place the tip of the pin on the
time scale
Thanks, Ian. Since my first writing, I too
Alt-az: a pin-gnomon: telling the time depends on both the altitude
and azimuth of the sun to place the tip of the pin on the time scale
Thanks, Ian. Since my first writing, I too have been slowly coming to the
same conclusion--i.e., that pin-gnomon dials are projections of altazimuth
PREI don't think you should include 'garden' as a type of horizontal sundial
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or any! Gardens could have as many types of dial as exist! David Brown 51.05N
2.74W
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Let me clarify my terminology.
I used directional as a category because it is the traditional name for
this group and the one used by historians and curators. Frankly, like most
of you, I prefer hour angle. So let's use that for the discussion. I
don't think RA is appropriate here, since
In preparation for a catalogue of historical sundials, I have been
organizing the dials into classes based on the principal feature of the
celestial sphere or altazimuth coordinate projected onto the dial
surface. I would like your feedback on the list below.
It appears to me that
