Here you can see the incorrect gnomon reposition, quite well anti-vandalism!
https://relojesdesol.info/gallery2/gallery/v/espana/and/sev/ES_AND_SEV_Sevilla-009-03_Plaza-de-America_Wiki4.jpg.html
in the following album picture with the original gnomon.
Regards, Luis
El 22/03/2024 a las 15:40,
it is also here:
www.sundialatlas.eu/atlas.php?sun=ES877
Fabio Savian
Il 22/03/2024 15:40, Douglas Bateman via sundial ha scritto:
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Plaza de America.
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Aren't we in danger here of confusing 'light' and
Gottesman
Cc: sundial@uni-koeln.de
Subject: Re: sundial Digest, Vol 215, Issue 2
I think there's a simpler solution.
In the UK at noon the shadow of the style on a horizontal sundial faces North -
away from the sun. Turn the style through 180 degrees in a horizontal plane,
and its shadow at noon
I think there's a simpler solution.
In the UK at noon the shadow of the style on a horizontal sundial faces
North - away from the sun. Turn the style through 180 degrees in a
horizontal plane, and its shadow at noon will face South - towards the sun!
John Lynes
On Mon, 11 Mar 2024 at 17:12, Bill
My guess on this one (without using mirrors):
Point the bottom of an empty can at the sun. The shadow inside the can
now points in the direction of the sun, though the definition of "in the
direction of the sun" in this case is debatable.
-Bill
On Mon, Mar 11, 2024 at 9:33 AM Chris Lusby Taylor
Re: Photograph of the Princess of Wales (Frank King)
Frank is being his usual pedantic self, which is always welcome, but the
police statement can more charitably be taken to say that shadows fall in a
continuation of the straight line from the light source to the illuminated
object. The edge
or all) magazine
Former President and active member of the Commission des Cadrans Solaires
(Société Astronomique de France)<https://ccs.saf-astronomie.fr/>
De : sundial de la part de lvadillo
Date : jeudi, 22 février 2024 à 21:35
À : sundial@uni-koeln.de
Objet : Re: World Sundial Day
The
The spanish AARS and myself are in favor of the WSD initiative. It may be a
boost to sundials interest all around the world.
Counting with your support (members and associations).
You can also support it voting at Change.org: https://chng.it/g8rkJVQYk6
Please diseminate.
Thanks and regards,
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Dear Sundial friends,
As Manolo Pizarro already
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Good morning on the last day of 2023.
Many thanks
Freecad and nanocad work well, power draw also works except when I used it,
I had to write my own trig functions. However I never exported the dial
plates from them as I can and still do use deltacad. I have also used
progecad. My book "Programming Shadows" has sample code for them, as well
as
that the photo of a Mass dial goes with the
solution.
Best regards
Roger
De : dennis.cowan
Date : dimanche, 26 novembre 2023 à 10:48
À : ro...@torrenti.net , Sundial List
Objet : RE: Winter issue of the “Cadrans solaires pour tous” magazine
Dear Roger
With reference to une enigme on page 34
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Dear RogerWith reference to une enigme on page 34,
My thanks go to Bill and Hervé for responding to my equinox question.
The information they provided indicates that the change in definition of
astronomical equinox, from delta = 0 to lambda = 0/180, had no practical
impact as far as sundialing is concerned (only a few seconds). For the
Hi Steve,
I think that some answers to your questions can easily be found on the
following link of the French " Institut de Mécanique Céleste et de Calcul des
Éphémérides" ( IMCCE) :
https://www.imcce.fr/newsletter/html/newsletter.html#current-article2
They publish (in French) a free
I seem to recall Fred contributing to a similar conversation a few years
ago. Speaking from ignorance, I think the sun will not be at exactly 0
declination at 180 longitude because the moon can pull the earth above or
below the ecliptic depending on the lunar orbit. I think the effect is
tiny,
Dan-George,
The earth globe itself.
Willy Leenders
Hasselt Belgium
> Op 9 aug. 2023, om 12:30 heeft Dan-George Uza het
> volgende geschreven:
>
> Hello,
>
> Does anybody know what the largest one-piece stone sundial in the world is?
>
> Thanks,
>
>
> --
> Dan-George Uza
>
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Hello Siegfried,
This is a wonderful dial. The
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Hello all,
I am very happy with all the kind and
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Steve, Peter, Jack,
Thanks so much for your
From: sundial On Behalf Of Peter Mayer
Sent: Friday, July 7, 2023 4:19 AM
To: sundial@uni-koeln.de; R. Hooijenga
Subject: Re: Off topic: English text explanation please
Dear Rudolf,
I share your interest in 17th century madrigals. (Although I'm a firm
non-smoker, one of my favourites
Dear Rudolf,
I share your interest in 17th century madrigals. (Although I'm a firm
non-smoker, one of my favourites has the line "tobacco is like
love..."). My interpretation is that this is a compressed form of
poetical expression. Decompressed, I think, it would be: […] thus did
they
You can build one of these.
https://www.mysundial.ca/sdu/sdu_wall_declinometer.html
From: sundial [mailto:sundial-boun...@uni-koeln.de] On Behalf Of Michael
Ossipoff
Sent: July 1, 2023 1:07 PM
To: Jeffery Brewer; sundial list
Subject: Re: Question About Measuring Wall Declination
I
I realize that you’ve already gotten good answers, but I’d like to say a
few things too.
…
I’m really late replying, because I’ve been trying to figure out how to
word answers to a few long assertion-posts from the usual confused
self-sure kids at a philosophical forum. After this time, I’m
Hi Jeffery you are actually calculating the horizontal angle indicated as
'angolo' on the diagram below
ie. deviation of the Sun from the wall under consideration.
Hope this helps,
Alexei
[image: image.png]
On Mon, 26 Jun 2023 at 16:37, Jeffery Brewer
wrote:
> I'm attempting to measure the
I would offer for consideration several options that work well and are easy
to program and use; some are more functional than others. I have tried and
written code for all of them, and I discuss them on my website, as well as
having functioning code for various dial types.
NanoCAD
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I would offer for consideration several options that
Good morning Dan-George, as an alternative one may wish to try
https://www.qcad.org/en perhaps.
Alexei
On Fri, 5 May 2023 at 07:34, Dan-George Uza wrote:
> Hello,
>
> I've just found out that DeltaCad has been discontinued so you won't be
> able to download the demo any longer. I find this
of sundials, including analemmatic
ones.
Kind regards
Roger
De : sundial de la part de Kurt Niel
Date : lundi, 1 mai 2023 à 08:00
À : Donald Christensen
Cc : Sundial mailing list
Objet : Re: analemmatic sundial
Hi Donald,
www.helson.at<http://www.helson.at>
A very supportive SW with
What happened to your "Sundials for Learning" business (a few years
back) - when you were offering plans for Analemmatic Sundials to schools
?
It seems to me, that you already had the appropriate software.
Keith Christian.
On 2023-05-01 06:44, Donald Christensen wrote:
I'm looking for a
Thank you. I forgot to specify that it needs to be able to run on osx
On Mon, May 1, 2023 at 4:00 PM Kurt Niel wrote:
> Hi Donald,
>
> www.helson.at
>
> A very supportive SW with a lot of different types of sundials!
>
> Kurt
>
> Donald Christensen schrieb am Mo., 1. Mai
> 2023, 07:44:
>
>>
Hi Donald,
www.helson.at
A very supportive SW with a lot of different types of sundials!
Kurt
Donald Christensen schrieb am Mo., 1. Mai 2023,
07:44:
> I’m looking for a program to calculate an analemmatic sundial. Can anybody
> help?
>
> Cheers
> Donald Christensen
> 0467 332 227
>
> If you
Hi,
Thanks!
Steve
On 2023-04-20 1:36 a.m., Hendrik Desmet wrote:
I found this:
"(...) Eight years later, Frank purchased *Cheney Foundry*, a small
company in Minneapolis that poured aluminum and brass, from its
retiring owner in 1963. Frank managed the foundry, and Lois managed
the
I found this:
"(...) Eight years later, Frank purchased *Cheney Foundry*, a small company in
Minneapolis that poured aluminum and brass, from its retiring owner in 1963.
Frank managed the foundry, and Lois managed the office.(...)
See https://carleyfoundry.com/about/history
Kind regards
Hendrik
Excellent!
That'll be him.
Thanks very much,
Steve
On 2023-04-19 3:55 p.m., Patrick Vyvyan wrote:
This quote is from the North American Sundial Society description of a
sundial in the Old Rose Garden of the Botanical Garden
University of California at Berkeley
"The armillary dial is made
I mentioned several alignments, the correction of any one of which could be
used to determine how much the dial-plate should be rotated in its own
plane (either before or after the tip).
Most recently I suggested the altitude of the pointing-direction of the
style.
But it seems to me that it
I retract the addendum. I wrote it with the notion that the noon-line
should be under the style. …as if the dial were intended to read for its
own longitude.
So, sorry—disregard the addendum (…as you probably already have).
The dial-plate’s rotation in its own plane should be to correct the
For complete generality:
If your sundial was made for a latitude greater then yours by an amount
called “DeltaLat” (which could be positive or negative), & if you want the
dial to give LTST for a longitude 7 degrees west of yours (maybe because
that’s your standard-meridian), then:
After the
Yes, I spoke of a special-case in which you’re 7 degrees east of your
standard-meridian. …for a concrete example. But the rest of what I said was
for the general-case in which you want the dial to read in the LTST at your
standard-meridian.
But yes, I didn’t speak of when the dial is made for a
On 2023-04-08 8:52 p.m., Michael Ossipoff wrote:
I know you said you wanted a link, not instructions, but people have
been suggesting how to achieve dial-autocorrection to Local True Solar
Time (LTST) at the standard-meridian, instead of one’s own meridian.
So I felt that it would be
Addendum:
…
Instead of finding the dial-plate rotation in its own plane that corrects
the style’s pointing-direction, it might be easier to, instead, find the
dial-plate rotation in its own plane that puts the dial’s noon-line in the
meridianal-plane….i.e. gives that noon-line an azimuth of
Steve—
…
I know you said you wanted a link, not instructions, but people have been
suggesting how to achieve dial-autocorrection to Local True Solar Time
(LTST) at the standard-meridian, instead of one’s own meridian. So I felt
that it would be justified to comment about it.
…
…even though
Contrary to what I suggested yesterday, the adjustment of a sundial to
give LTST at the standard-meridian doesn’t require solution of a system of
equations. It’s a straightforward coordinate-transformation:
…
Say the dial-plate is circular. For a sphere that circumscribes that
dial-plate, the
[quote]
Assuming that a dial should read only local solar time is a rather limited
view.
[/quote]
…
:-) What?
…
So, an expressed preference is a “limited view”? :-)
…
LTST stands for Local-True-Solar-Time.
…
A dial that reads in LTST at your latitude *at your standard
meridian*…instead
By “auto-correction”, I refer modification of the dial, so that it will
directly read Local-True-Solar-Time (LTST) at your latitude at your
standard-meridian instead of where the dial is.
…
Auto-correcting for longitude by rotating & tipping the dial is a
“retrofit” longitude auto-correction, as
Depending on your choice of rotation axes, only two rotations are
needed, one for the elevation of the pole and one around the gnomon for
longitude correction. These are the two that correspond to the actual
changes needed.
If you are using the three orthogonal x, y, and z axes, then three
Assuming that a dial should read only local solar time is a rather
limited view. While it might be of interest to the dial purist, it is
not particularly useful to the general population and often requires a
lot of explanation. And it makes us seem like an eccentric clique. The
dial produces a
At a new location, a dial must end up with the style parallel to the
polar axis - but how do you achieve that using a wedge? Assuming you
start with the dial at the new location on a horizontal surface with the
sub-stile line on the local meridian, the required sequence is to rotate
it about
nes with respect to the origin of
>> the gnomon.
>>
>>
>>
>> Does this make sense? It sounds like a good project for a 3-D printer.
>>
>>
>>
>> Jack
>>
>>
>>
>> *From:* sundial
>> *On Behalf Of *Steve Lelievre
&
On Tue, Apr 4, 2023 at 08:45 wrote:
> Rotating the dial plate around a vertical axis is wrong because the hours
> lines are not at constant angles.
>
> Rotating the whole dial around the polar axis is the correct way to adjust
> a local solar time dial to a different longitude, the time zone
Rotating the dial plate around a vertical axis is wrong because the
hours lines are not at constant angles.
Rotating the whole dial around the polar axis is the correct way to
adjust a local solar time dial to a different longitude, the time zone
center, for example.
Having a dial show the
its polar axis.
Jack Aubert
From: sundial On Behalf Of Steve Lelievre
Sent: Monday, April 3, 2023 7:47 PM
To: Rod Wall ; kool...@dickkoolish.com
Cc: 'Sundial sundiallist'
Subject: Re: Adjusting dial to new location
Hi, Roderick,
My home internet connection is still non
uni-koeln.de> *On Behalf Of *Steve Lelievre
*Sent:* Sunday, April 2, 2023 5:16 PM
*To:* Michael Ossipoff
<mailto:email9648...@gmail.com>
*Cc:* Sundial List
<mailto:sundial@uni-koeln.de>
*Subject:* Re: Adjusting dial to new location
Michael,
Yes, I rec
Hi all,
Is the Sundial Mailing list able to accept images?
Below is how we can understand how sundials work. A sundial is a
mechanical clock. Sundials are geared to the largest clock in the world,
Earth. Look at it from a mechanical point of view on a spinning Earth.
Draw the earth and cut
Hi all,
This link I think is a good way of showing. How we can understand how
sundials work. A sundial is a mechanical clock. Sundials are geared to
the largest clock in the world, Earth. Look at it from a mechanical
point of view on a spinning Earth.
Draw the earth and cut out paper
That surprises me too. I’d have expected that the only differences would be
that the dial is numbered counterclockwise, & that north & & south are
replaced with poleward & equatorward.
On Mon, Apr 3, 2023 at 16:47 Steve Lelievre
wrote:
> Hi, Roderick,
>
> My home internet connection is still
Hi, Roderick,
My home internet connection is still non-functional so I can't fix it
yet, but it does seem that I will have to add an extra test to handle
southern hemisphere locations and reducing latitudes. Actually, I
originally had a southern hemisphere check in there but took it out
the hour lines with respect to the origin of the gnomon.
Does this make sense? It sounds like a good project for a 3-D printer.
Jack
From: sundial On Behalf Of Steve Lelievre
Sent: Sunday, April 2, 2023 5:16 PM
To: Michael Ossipoff
Cc: Sundial List
Subject: Re: Adjusting dial to new
Hi Steve,
For both examples below with all sundials at the same Longitude. The
instructions indicate:
Place the wedge-sundial assembly on a horizontal surface in a nice sunny
location. *Start with the higher end of the wedge to the north* and the
sides aligned on a north-south line and the
se? It sounds like a good project for a 3-D printer.
>
>
>
> Jack
>
>
>
> *From:* sundial
> *On Behalf Of *Steve Lelievre
> *Sent:* Sunday, April 2, 2023 5:16 PM
> *To:* Michael Ossipoff
> *Cc:* Sundial List
> *Subject:* Re: Adjusting dial to new location
>
Ossipoff
Cc: Sundial List
Subject: Re: Adjusting dial to new location
Michael,
Yes, I recognize that to get Mean Time involves Equation of Time adjustment and that Equation of Longitude can be handled there to give Standard Time (or DST).
But anyway, my inquiry was to seek an online wedge
Hi Patrick,
Thanks for the link. It certainly seems similar, if slightly different,
from what I take to be the Indian 'knockoff' that you've found. Perhaps
we should all get one...for future use!
It does seem evident that these are all made for the higher latitudes in
the Northern
udinal adjustment would only work if he original dial had a time-zone
> offset included by rotating the hour lines with respect to the origin of
> the gnomon.
>
>
>
> Does this make sense? It sounds like a good project for a 3-D printer.
>
>
>
> Jack
>
>
>
>
lines with respect to the origin of the gnomon.
Does this make sense? It sounds like a good project for a 3-D printer.
Jack
*From:* sundial *On Behalf Of *Steve
Lelievre
*Sent:* Sunday, April 2, 2023 5:16 PM
*To:* Michael Ossipoff
*Cc:* Sundial List
*Subject:* Re: Adjusting dial to new
*Sent:* Sunday, April 2, 2023 5:16 PM
*To:* Michael Ossipoff
*Cc:* Sundial List
*Subject:* Re: Adjusting dial to new location
Michael,
Yes, I recognize that to get Mean Time involves Equation of Time
adjustment and that Equation of Longitude can be handled there to give
Standard Time (or DST
to the origin of the gnomon.
Does this make sense? It sounds like a good project for a 3-D printer.
Jack
From: sundial On Behalf Of Steve Lelievre
Sent: Sunday, April 2, 2023 5:16 PM
To: Michael Ossipoff
Cc: Sundial List
Subject: Re: Adjusting dial to new location
Michael,
Yes, I
...& thank you for doing so, because online calculators & dial-printing
programs make sundials readily accessible to everyone.
On Sun, Apr 2, 2023 at 5:15 PM Steve Lelievre <
steve.lelievre.can...@gmail.com> wrote:
> Michael,
>
> Yes, I recognize that to get Mean Time involves Equation of Time
>
Michael,
Yes, I recognize that to get Mean Time involves Equation of Time
adjustment and that Equation of Longitude can be handled there to give
Standard Time (or DST).
But anyway, my inquiry was to seek an online wedge calculator. Nobody
identified one and a week seemed an adequate wait
I just want to mention that the shim under the north or south edge of the
dial is only for latitude. Longitude is corrected-for by changing the
constant term of the Sundial-Time to Clock-Time conversion.
But usually Sundial-Time, Local True Solar Time, is what I’d want from a
sundial.
On Sun,
Rather curious to know what it makes finally, from what I can see it looks
to be a modern novelty very similar to this one currently out of stock on
the Internet
https://www.alibaba.com/product-detail/Vintage-Brass-and-Wood-Sundial-Compass_1006081836.html
Best wishes to all, Patrick Vyvyan
Beautiful! With some additional markers, it could become an azimuthal dial. I'm not planning a trek to the site - maybe a digital overlay.On Mar 9, 2023 9:58 AM, Werner Riegler wrote:
Dear Dialists,
On this link
My below message hasn’t been distributed, is there any reason ?
Best regards
De : ro...@torrenti.net
Date : jeudi, 2 mars 2023 à 09:28
À : Sundial List
Objet : Spring issue of "Cadrans solaires pour tous"
Dear colleagues,
I am very glad to send you the digital version (pdf file) of the latest
I'd rather keep the leap-second. The fluctuation that it brings to
clock-time only has a 1-second peak-to-peak amplitude. That's completely
insignificant to dialists. & also entirely insignificant for such
things as Sunrise, Sunset, Civil-Twilight & Nautical Twilight, where a
cloud or a
Bill,
On 2022-12-09 4:06 p.m., Bill Gottesman wrote:
The side of the trapezoid between12:00 and 1:00 skews to the 1:00 line
- I have doubts that it was intended to track to the origin. Whatever
that means.
Well spotted.
On a copy of the dial face, I drew in the hour lines extended back
Dear all, I have never commented on this topic, I do it now with a proposal.
- The leap second takes into account a sort of 'noise', unpredictable
before, for small variations in the speed of the Earth's rotation.
Anyway, over the millennia this speed will decrease, so the leap second
is not
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Didn't we have the same problem with the year, some
Ah, the joys of Listservs and email software. My participation sometimes
gets of of step too: occasionally, original posts reach me after other
people's replies.
Perhaps it wouldn't be a problem if all the world's computers were
exactly synchronized... perhaps they could use atomic clocks
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It’s hard to conclude that ‘“nothing will change”
Sorry Steve,
I sent my post before seeing yours.
--
Cheers, John.
Dr John Pickard.
On 21-November-2022 14:56, Steve Lelievre wrote:
Apparently the Powers That Be have officially decided that Clock Time
is right and Solar Time is wrong.
Or to put it another way, the International Bureau
managing the list at
>sundial-ow...@uni-koeln.de
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of sundial digest..."
>
>
> Today's Topics:
>
> 1. I'm off on a quick package tour with a day off in Amsterdam.
ide.edu.au; Wysłane: 2:12 Piątek 2022-11-04Temat: Re: Vertical
stereographic sundial
Hi Maciej,
Here's a puzzle for you
and others on the list. Does the usual 'co-latitude' rule for
other plane sundials hold for Oughtred/stereograph dials? I've
tried a quick
; ml...@interia.pl;
Wysłane: 5:58 Poniedziałek 2022-10-31
Temat: Re: Vertical stereographic sundial
Hi Maciej,
Thanks for your recent post. Since no one seems to have replied to
your plea in the final paragraph for software to draw a
stereographic/Oughtred dial, here are some exis
What’s wrong with brass changing its color with weathering? Isn’t that part
of the appeal of brass?
On Sat, Apr 30, 2022 at 8:56 AM Dan-George Uza
wrote:
> Hi,
>
> Iron rusts and brass changes color, but what about different metals used
> as gnomons, pros & cons?
>
> What would be the
ciejOd: "Peter Mayer"
a1000...@adelaide.edu.auDo: sundial@uni-koeln.de; ml...@interia.pl;
Wysłane: 5:58 Poniedziałek 2022-10-31Temat: Re: Vertical stereographic sundial
Hi Maciej,
Thanks for your recent post. Since no one seems to have replied
to your plea in th
Hello Valentin,
My version of DeltaCad (10.0.0 for Mac) will not run .bas macros, only
.scpt macros.
Do you know if there is a way to get your macros to run on this version of
deltacad?
-Best, Bill
On Mon, Oct 31, 2022 at 4:32 AM Valentin Hristov
wrote:
> Greetings from Bulgaria to the
Is this real or a concept? The shadows don’t move in the rest of the image.
- Bill
On Sun, Oct 30, 2022 at 7:14 AM Alexei Pace wrote:
> Interesting one in Rue Montmartre
> https://www.instagram.com/reel/Cj0hS2JIPQV/?igshid=YmMyMTA2M2Y=
>
> On Wed, Oct 26, 2022, 11:58 Werner Riegler wrote:
>
>>
I forgot to mention that the amount by which the mean sun gains on the
actual sun in R.A. is eastward, in the opposite direction to the Sun's
diurnal motion.
...& so, the amount by which the mean Sun gains on the actual Sun in
hour-angle. is the negative of the amount by which it gains on the
Dear John,
I know this object as “Horizontoscope".
http://www.horizontoscop.com/eng/index_eng.html
I bought one recently after reading about it in one of Helmut Sonderegger’s
articles, where he gives the math of it.
There is a description of the TNO "jellyfish", as it was affectionally
known, in a paper by J van der Eijk, "Instrumentation for Solar Studies",
in the *Proceedings of the CIE Intersessional Conference on Sunlight in
Buildings*, Bouwcentrum International, Rotterdam 1967, and reprinted as
Okay, that’s good to hear. …& thanks clearing it up.
On Sun, Oct 16, 2022 at 3:54 PM Steve Lelievre <
steve.lelievre.can...@gmail.com> wrote:
> Michael,
>
> On 2022-10-16 1:40 p.m., Michael Ossipoff wrote:
> > Thank you for mentioning that I answered Steve's question.
> > ...something not
Michael,
On 2022-10-16 1:40 p.m., Michael Ossipoff wrote:
Thank you for mentioning that I answered Steve's question.
...something not acknowledged by Steve for some reason.
Please be assured that no slight was intended. Thank you for taking the
time to reply to my question.
I did not
Frank--
Thank you for mentioning that I answered Steve's question. ...something
not acknowledged by Steve for some reason.
I didn't notice that when I first read your post. Thanks for setting the
record straight !
So, to the list I just want to clarify that, when Steve asked how to
determine
[quote]
At the moment we are in Vintagarious, the
first month, and you will see that each
day has the symbol for Aries.
[/quote]
Then you have an error, because Vendemiaire doesn't roughly approximate
Aries. Vendemiaire
roughly approximates Libra.
As for the nature of the French Republican
Dear Steve,
Michael, Werner and Fabio have provided some
excellent responses to your question.
If you are ONLY interested in relating three
ANGLES - solar longitude, solar declination
and the obliquity - then this relationship is
indeed all you need:
sin(lambda).sin(obliquity) =
My thanks go Werner for his detailed and helpful response to my
question, and Fabio for his interesting comments on the astrolabe.
I learned some new things today, and it was nice to see a diagram of the
offset circles on the back of the astrolabe. Clever.
Cheers,
Steve
Dear Steven,
The relation of solar declination delta(t) to ecliptic longitude lambda(t)
delta(t) = ArcSin[Sin[23.44]*Sin[lambda[t]]
You are interested in the relation of solar declination to time since the
equinox.
Your formula delta(t) = 23.44*Sin(t), with t being the time (in degrees)
erably also for some fractions of each
> ecliptic-month, such as 1/3 & 2/3.
>
> On Fri, Oct 14, 2022 at 10:16 PM Michael Ossipoff
> wrote:
>
>>
>>
>> -- Forwarded message -
>> From: Michael Ossipoff
>> Date: Fri, Oct 14, 2022 at 10:16 PM
Ossipoff
wrote:
>
>
> -- Forwarded message -
> From: Michael Ossipoff
> Date: Fri, Oct 14, 2022 at 10:16 PM
> Subject: Re: How to turn ecliptic longitude into solar declination?
> To: Steve Lelievre
>
>
>
>
> Or you could just use the ecliptic lo
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