In message om, Dave
Liquorice writes
On Tue, 22 Feb 2005 08:55:36 GMT, Steve Loft wrote:

... you *bisect* the angle between the sun and the hour hand to give
south? In the northern hemisphere, of course.

This is true, I like this page of explanation, pretty picture that
illustrates the principle better than just words.

http://makeashorterlink.com/?T2491288A

That's good enough for most purposes but it's not spot on, especially at
this time of year or if you're some way from the line of longitude used
for your time zone.

There's a nice little java applet at http://www.jgiesen.de/SME/ that
will give you the position of the sun and moon for a given time and
place.

I used the applet the other day to work out the bearing of my windows.
It came out at 130 degrees. The watch method gives 139 degrees.

--
Michael Parry
'The Truth Shall Make Ye Fret'
(Terry Pratchett, The Truth)

In message om, Dave
Liquorice writes
On Tue, 22 Feb 2005 08:55:36 GMT, Steve Loft wrote:

... you *bisect* the angle between the sun and the hour hand to give
south? In the northern hemisphere, of course.

This is true, I like this page of explanation, pretty picture that
illustrates the principle better than just words.

http://makeashorterlink.com/?T2491288A

That's good enough for most purposes but it's not spot on, especially at
this time of year or if you're some way from the line of longitude used
for your time zone.

There's a nice little java applet at http://www.jgiesen.de/SME/ that
will give you the position of the sun and moon for a given time and
place.

I used the applet the other day to work out the bearing of my windows.
It came out at 130 degrees. The watch method gives 139 degrees.

--
Michael Parry
'The Truth Shall Make Ye Fret'
(Terry Pratchett, The Truth)

In message om, Dave
Liquorice writes
On Tue, 22 Feb 2005 08:55:36 GMT, Steve Loft wrote:

... you *bisect* the angle between the sun and the hour hand to give
south? In the northern hemisphere, of course.

This is true, I like this page of explanation, pretty picture that
illustrates the principle better than just words.

http://makeashorterlink.com/?T2491288A

That's good enough for most purposes but it's not spot on, especially at
this time of year or if you're some way from the line of longitude used
for your time zone.

There's a nice little java applet at http://www.jgiesen.de/SME/ that
will give you the position of the sun and moon for a given time and
place.

I used the applet the other day to work out the bearing of my windows.
It came out at 130 degrees. The watch method gives 139 degrees.

--
Michael Parry
'The Truth Shall Make Ye Fret'
(Terry Pratchett, The Truth)

Dave Liquorice wrote:

Having a good clear view to the fells several km away I used a map and
a land mark. Mines probably correct within the tolerance of the kit
(+/- 8 deg, 1 deg typical). I suspect the WMR has the same spec?

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg. These figures are from the US Radio
Shack manual for the same station, the UK Oregon manual just says 1deg
typical.
--
Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL
http://www.wanlockhead.org.uk/weather/
Free weather softwa http://cumulus.nybbles.co.uk/
Experimental webcam: http://www.wanlockhead.org.uk/webcam.php

Dave Liquorice wrote:

Having a good clear view to the fells several km away I used a map and
a land mark. Mines probably correct within the tolerance of the kit
(+/- 8 deg, 1 deg typical). I suspect the WMR has the same spec?

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg. These figures are from the US Radio
Shack manual for the same station, the UK Oregon manual just says 1deg
typical.
--
Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL
http://www.wanlockhead.org.uk/weather/
Free weather softwa http://cumulus.nybbles.co.uk/
Experimental webcam: http://www.wanlockhead.org.uk/webcam.php

Dave Liquorice wrote:

Having a good clear view to the fells several km away I used a map and
a land mark. Mines probably correct within the tolerance of the kit
(+/- 8 deg, 1 deg typical). I suspect the WMR has the same spec?

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg. These figures are from the US Radio
Shack manual for the same station, the UK Oregon manual just says 1deg
typical.
--
Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL
http://www.wanlockhead.org.uk/weather/
Free weather softwa http://cumulus.nybbles.co.uk/
Experimental webcam: http://www.wanlockhead.org.uk/webcam.php

Dave Liquorice wrote:

Having a good clear view to the fells several km away I used a map and
a land mark. Mines probably correct within the tolerance of the kit
(+/- 8 deg, 1 deg typical). I suspect the WMR has the same spec?

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg. These figures are from the US Radio
Shack manual for the same station, the UK Oregon manual just says 1deg
typical.
--
Steve Loft, Wanlockhead, Dumfriesshire. 1417ft ASL
http://www.wanlockhead.org.uk/weather/
Free weather softwa http://cumulus.nybbles.co.uk/
Experimental webcam: http://www.wanlockhead.org.uk/webcam.php

On Tue, 22 Feb 2005 18:29:47 GMT, Steve Loft wrote:

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg.

The +/- 18 bit is where the potentiometer track wraps around.

--
Cheers
Dave. pam is missing e-mail

On Tue, 22 Feb 2005 18:29:47 GMT, Steve Loft wrote:

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg.

The +/- 18 bit is where the potentiometer track wraps around.

--
Cheers
Dave. pam is missing e-mail

On Tue, 22 Feb 2005 18:29:47 GMT, Steve Loft wrote:

Between 0deg and 347deg it's the same, but for some reason, between
347deg and 359deg it's +/- 18deg.

The +/- 18 bit is where the potentiometer track wraps around.

--
Cheers
Dave. pam is missing e-mail