(I posted the original message)
Hello and thank you for all the suggestions for a season dial.
I did have some conversations off the news group and we came up with a neat
solution.
I am going to use a 9 meter analemmatic dial as a base. (So there is a "date
table" in the middle of that type of dial.) Then to the east and west of
the date table there will be a "sunrise"(east) and a "sunset"(west) table.
At sunrise a person can stand on the "sunrise table" and see where their
shadow lands on the date table in the center, thus getting the season
(date).
If I ever need to be very exact or to compensate for mountains, I will also
make a place to put in a removable pole set at the equatorial angle, so I
can see the season several hours around sunrise and sunset. Similar to a
giant Armillary sphere. (Part of the goal was to keep as poles or pointed
objects to a minimum since there are many animals on my property.) Theere
is stil a little ambugity since it could be one of 2 dates,but I canthink I
can live with that. Can any one figure out how to slip a nocturn into the
design? Night time would be a big kick
Special thanks go out to Roger Baliey who mentored me through this thought
process and for technical help.
Best regards,
Mike
Lat: 36.91 Lon: 121.35
----- Original Message -----
From: Dave Bell <[EMAIL PROTECTED]>
To: 'Deamicis-Roberts' <[EMAIL PROTECTED]>
Cc: Sundial <[email protected]>
Sent: Saturday, November 10, 2001 10:06 AM
Subject: RE: "season dial"
> On Sat, 10 Nov 2001 [EMAIL PROTECTED] wrote:
>
> > Didn't see any response to this request.
>
> I don't think I saw the original; I think a few posts slip through the
> cracks...
>
> > Starting with an Armillary Sphere dial design a Season dial could be
> > constructed.
> >
> > 1. The Central rod gnomon is replaced with a point tipped rod
> >
> > 2. The Equatorial ring is fitted with a movable curved dial plate that
> >
> > plate may be moved to the point on the equatorial ring that indicates
> > current mean time.
> >
> > To read the season, set the movable dial plate according to current mean
> > time, then observe the point shadow falling somewhere on the analemma.
> > Read the current season off the analemma.
> >
> > David Pratten
> >
> > -----Original Message-----
>
> Certainly would work... I would envision something simple and fixed,
> perhaps. Design the dialplate to indicate the date *at sunrise*, through
> the seasons. No EoT, no moving dialplate. Maybe two plates, one indicating
> for sunset. also.
>
> Dave
> 37.27N 121.97W
>
>
> From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Deamicis-Roberts
> > Sent: Wednesday, 10 October 2001 10:10 PM
> > To: [email protected]
> > Subject: "season dial"
> >
> >
> > Hello,
> >
> > I live on a large piece of property and wanted to build a large "season
> > dial." I imagined being able to get up at sunrise on any morning and be
> > able to see were in the seasonal cycle we were in: how many days left in
> > spring, summer, fall ( also marking equinoxes, olsitices, even metor
> > showers, and the sort) I imagined a large sundial-like device.
> >
> > Are there any plans for something like this?
> >
> > Thanks for your help,
> >
> > Best regards,
> > Mike Deamicis-Roberts
> >
> >
> >
