[Cob] find south

[otherfish]

Thanks Clint.
what a cool site for accurate time of solar noon
In my typically lazy way of doing things, I'd not thought of the variation
due to the factors you bring into the discussion.

On checking for my location (berkeley, ca), there is an appx 33 minute range
around clock noon in which solar noon falls.  So if precision is needed, the
adjustments from the solar-noon tables are very usefull.

My gut says being somewhere within the appx 1/2 hour range of true south is
not critical for passive solar design, but then precision (????) has never
been my strong suit.

Good info, thanks
otherfish 


on 7/17/05 8:46 AM, Clint Popetz at clint at cpopetz.com wrote:

> On Sun, Jul 17, 2005 at 08:15:05AM -0700, otherfish wrote:
>> in the northern hemisphere
>> the sun is at true south at noon
> 
> True, if you mean "solar noon."  False, if you mean 12pm on the clock.
> That only occurs on two days each year, which aren't even the
> equinoxes (unless you live on a time zone line).
> 
> Try www.solar-noon.com to get the time of solar noon for a given day,
> longitude, and time zone.  (All three variables matter.)
> 
> -Clint
>