[TowerTalk] Fwd: Strange behavior

[Patrick Greenlee]

Shadows are ALWAYS longest at solar noon, irrespective of season.

Patrick        NJ5G


On 1/24/2017 1:23 PM, Hans Hammarquist via TowerTalk wrote:
> To add "salt to the injury" the solar noon varies a little for different times of the years.
>
> Hans - N2JFS
>
>
> -----Original Message-----
> From: jimlux <jimlux at earthlink.net>
> To: towertalk <towertalk at contesting.com>
> Sent: Mon, Jan 23, 2017 11:49 pm
> Subject: Re: [TowerTalk] Strange behavior
>
>
> On 1/23/17 6:22 PM, Roger (K8RI) on TT wrote:
>> Noon by the clock, or noon by the sun (solar time)? Depending on
>> location, the clock can be nearly an hour off particularly if in a state
>> with a skewed time zone, or near the edge of a time zone. Michigan
>> (where I live) is near the Western edge of the Eastern time zone. My
>> location is off by nearly an hour between EST and Solar time.
>>
>> 73, Roger (K8RI)
> The Naval Observatory Astronomical Applications site generates tables
> that are corrected for your location, etc.
>
> http://aa.usno.navy.mil/data/index.php
>
> you're looking for "Sun transit"
> http://aa.usno.navy.mil/data/docs/RS_OneDay.php
>
>
>> On 1/23/2017 3:31 PM, Jim Brown wrote:
>>> On Mon,1/23/2017 8:32 AM, Michael Clarson wrote:
>>>> David's method of using a topo map and sighting an object is the best
>>>> way.
>>> That works IF you can see the distant object. My towers are in a dense
>>> redwood forest. I established true north from the shadow of the tower
>>> at solar noon using online tables by date, on a day when the sun got
>>> through the trees to cast a shadow at noon, and laid down a log along
>>> the shadow.
>>>
>>> https://www.esrl.noaa.gov/gmd/grad/solcalc/
>>>
>>> 73, Jim K9YC
>>>
>>> _______________________________________________
>>>
>>>
>>>
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2016.0.7998 / Virus Database: 4749/13835 - Release Date: 01/25/17