info.
John
www.annosphere.com
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Greetings fellow dialists,
A little while ago a discussion was published of a dial in Hawkshead,
Cumbria, UK, having an odd longitude attribution, one not referring to
its true longitude. An account and picture appears in the BSS Bulletin
19(iii), 2007. It did not take our sundialists of the pre
Here's a sundial which illustrates these points. It's an Oughtred dial
set for the Arctic Circle without longitude, EOT, or refraction
corrections. Note that the Sun is above the horizon for the entire day
on the 21st of June (but just barely).
Brad
-Original Message-
From: sundial-boun...
The appropriate answer for a 7 year old is "Yes, at the Arctic Circle". Then
have him face north and explain that on the Summer Solstice, the Sun will be
on the northern horizon at midnight. It will rise off the northern horizon, go
to your right (as you are looking north), continue rising, as
Larry,
One thing I noticed about this dial which hasn't been
mentioned so far is that the delineation runs from IV a.m. to VIII p.m.
whereas a dial at 40° 35' would perhaps run from V to VII in whole
hours. IV (or ) and VIII wouldn't appear until around 50° North.
Tony Moss
-
Thanks for this, Larry. It was, indeed, a very beautiful dial. I wonder if the
coiled snake insignia of the Royal American Regiment shown on the dial was the
inspiration for the 'coiled snake' and 'don't tread on me' motto used by some
of the American revolutionaries a little more than a decade
An interesting picture on Astronomy Picture of the Day
Suspension Bridge Solargraph
http://antwrp.gsfc.nasa.gov/apod/ap090115.html
Bob
---
https://lists.uni-koeln.de/mailman/listinfo/sundial
We also simply call it "prime vertical crossing."
-- Richard Langley
Quoting "Roger W. Sinnott" :
> Hi Greg,
>
> The east-west equivalent of the meridian is called the prime vertical. W.
> Chauvenet's Manual of Spherical and Practical Astronomy (1863) notes that it
> is very useful for determ
Hello everybody
I am a member of this list for some time
but I did not introduce myself so far.
My name is Darek Oczki, I live in Warsaw, Poland.
Sundials became my passion about 2 years ago.
What I search sundials in Poland, try to reach
them and take photos. I'm trying to collect info
abo
Dear Andrew,
I think your 9-year old step son needs
a lesson on the theory of limits but
meantime he needs an answer to his
question:
> Is there a place on the surface of the
> earth where the sun will rise at midnight
> on the longest day of the year and then
> set at the next midnight and then
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