Math of a SunFlower... How to calculate the azimuth and elevation of the Sun position as a function

[SunFlower]

Sorry, this is not directly related with the electronics. But I thought
people on this group who build sun tracker may help me.

Given
* the logitude and latitude of your position
*date
* time
How to calculate the azimuth and elevation of the Sun position ?

NOTE : that it is possible to track the sun without knowing explicitly its
azimuth an elevation angles. I'm not interested in this. I'm looking for the
equations which will return the Sun's azimuth and elevation angles
corresponding to given date, time and location.

 

[Caliban]

Sorry, this is not directly related with the electronics. But I thought
people on this group who build sun tracker may help me.

Given
* the logitude and latitude of your position
*date
* time
How to calculate the azimuth and elevation of the Sun position ?

NOTE : that it is possible to track the sun without knowing explicitly its
azimuth an elevation angles. I'm not interested in this. I'm looking for the
equations which will return the Sun's azimuth and elevation angles
corresponding to given date, time and location.

If you can't find it on the web it's probably in here:

http://www.amazon.com/exec/obidos/tg/detail/-/0521356997/104-2563445-5716751?v=glance

 

[Caliban]

If you can't find it on the web it's probably in here:

http://www.amazon.com/exec/obidos/tg/detail/-/0521356997/104-2563445-5716751?v=glance

It is, page 86 according to "Look Inside this book", I don't have a copy
(yet - it's still on my wishlist) so can't tell you the equation.

 

[Guest]

Amazing !.. What a pin-pointted reference!... Thank you VERY much.. I'll try
to find this book especially for its page 86!..

Cheers..

....

 

[Guest]

http://www.faqs.org/faqs/astronomy/faq/part3/section-5.html

 

[AssTelescope]

its on google, do a search, no need to buy a book

here is one shitty link off the first result
http://www.xylem.f2s.com/kepler/sun.html

 

[Guest]

See also

The Orrery newsletter, Issue #41.
http://members.allstream.net/~gneill/orrery.html

 

[swanny]

Sorry, this is not directly related with the electronics. But I thought
people on this group who build sun tracker may help me.

Given
* the logitude and latitude of your position
*date
* time
How to calculate the azimuth and elevation of the Sun position ?

NOTE : that it is possible to track the sun without knowing explicitly its
azimuth an elevation angles. I'm not interested in this. I'm looking for the
equations which will return the Sun's azimuth and elevation angles
corresponding to given date, time and location.

I found this site very useful for solar tracking:

http://www.squ1.com/index.php?http://www.squ1.com/solar/solar-position.html

Geoff

 

[Guest]

That's very interesting link.
Thank you..

 

[Guest]

Some of the links about Sun's position gathered so far as follows ;
http://www.nrel.gov/docs/fy04osti/34302.pdf
http://rredc.nrel.gov/solar/codesandalgorithms/spa/
http://members.allstream.net/~gneill/orrery.html (Issue #41)
http://www.xylem.f2s.com/kepler/sun.html#twig02
http://www.amazon.com/exec/obidos/tg/detail/-/0521356997/103-6282662-6000647?v=glance
http://www.faqs.org/faqs/astronomy/faq/part3/section-5.html
http://solardat.uoregon.edu/SunChartProgram.html
http://www.squ1.com/index.php?http://www.squ1.com/solar/solar-position.html