*
For example, at summer solstice, during the 18 minutes when light shines through the right gap, the sun has moved 4.5ยบ westward almost horizontally across the sky. We would at first glance expect the projected pattern of sunlight to move horizontally across the spiral, shifting to the
: [EMAIL PROTECTED]
To: sundial@rrz.uni-koeln.de
Sent: 28 November, 2003 12:19 PM
Subject: Re: Two links to Sun Dagger of Chaco Canyon Re: Stab Dial
P.S. I'm sorry if my insistence, or the mode of my insistence, on a
detailed
explanation ruffled any feathers.
-
When I mentioned not posting much more on the List, it wasn't because of your tenacity; it was because of mine. I often tend to "stick to my guns" about an idea unless and until someone gives me new information that changes my position. I didn't want to maintain my stubborn position in
Hi Albert,
Yes, after looking at the site, I agree with you. I would clearly
consider it a Stab Dial. Your definition is also very clear and I
believe complete. It was nice to see pictures of one.
Thanks!
Edley
After reading other postings, let me clarify that I posted the below two
My interest is personal, not professional, so I can't answser most of your questions. My educated guesses are no better than your educated guesses.
For the physical structure and possible history of the petroglyphs:
http://www.angelfire.com/indie/anna_jones1/sundagger.html
Good site, It
In regards to the spiral representing 18.6 years (and not 18.5 or some other close number), I believe the answer is that the observations are directly tied to the 18.6 year cycle. So, if the observations were properly recorded, the spiral would indeed represent 18.6 years.
Albert Franco
Do
1) 18.6 year spirals: From readingvarious websites online concerning the Sun Daggers, it seems that the moon relation was never even considered until a photographer was developing a photo. He noticed two other marks--very faint-- that no one had noticed while viewing the petroglyph in person.
The photo at top of the linked page makes me feel certain that the petroglyph was intentionall drawn to represent the location of the Sun in the sky.
Then the photo has fulfilled what I believe to be its purpose, namely to make you feel certain of that. If my arguments are correct, a very
It would actually take less than10 years to observe and mark the complete cycle of the moon's travels, if a person started at the proper time. It would take less than 20 total years at most, if an observer were unlucky enough to start at the worst time in the cycle. For dedicated holy men who
PM
Subject: Re: Two links to Sun Dagger of
Chaco Canyon Re: Stab Dial
The reason the photo convinces me is because the wall that the petroglyph
is on does not face south. It seems to face almost east. This
answers several of the issues that you brought up. It would be very
simple
site: http://www.sundialsculptures.comStained Glass Sundials Website: http://advanceassociates.com/Sundials/Stained_Glass
- Original Message -
From: Albert Franco
To: sundial@rrz.uni-koeln.de
Sent: Thursday, November 27, 2003 6:20 PM
Subject: Re: Two links to Sun Dagger of Chaco Canyon Re: Stab Dial
I had read about (and bookmarked) the Sun Dagger of Chaco Canyon before I had learnt about shadow planes. Thank you, John. Your comment made me re-visit the pages, and reconsider the dial from that perspective. And thank you Edley McKnight. It's always interesting to have a subject
Photos of the Sun Dagger at various times can be seen here:
http://www.cpluhna.nau.edu/People/sw_archaeoastronomy.htm
The following page gives a concise description of the Sun Dagger in relation to Sun and Moon.
http://paganastronomy.net/nahist.htm
At Chaco Canyon, we find the most
For the physical structure and possible history of the petroglyphs:
http://www.angelfire.com/indie/anna_jones1/sundagger.html
My "educated guess" is that the Sun Dagger and "18.6" year spiral were not calculated. The "astronomers"--who probably also were religious leaders--of the time were
In regards to the spiral representing 18.6 years (and not 18.5 or some other close number), I believe the answer is that the observations are directly tied to the 18.6 year cycle. So, if the observations were properly recorded, the spiral would indeed represent 18.6 years.
Albert Franco
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