Ciencias y Artes Patagonia www.sun45.org International Year of Astronomy 2009
International Sunbeam and Shadow Project “Sun 45 Equi-umbra”
Equi-umbra, Sunrise, Transit and Sunset Information
1. Obtaining Sun Tables from US Naval Observatory (USNO)
Quick Easy Free : simply go to a USNO webpage, put simple information into a few little boxes, and quickly down load an easy to read table.
Example: Washington DC, date 2009 July 4
We want to obtain:
Scroll down to: Form A - U.S. Cities or Towns Click circle Object: Sun
Insert year: 2009
Insert state name: District of Columbia
Insert city name: "Washington"
Insert time interval (minutes): 1
A new page should appear with a table, titled as above.
If the following appears:
Unable to find location in our file. Try another location.it is probable that the location is not on the computer's database.
If this is the case or if you want to obtain data for this or for any other location worldwide go back to the form page and scroll down to:
Form B Locations Worldwide.
In processing Form A, the computer inserted the latitude and longitude automatically from its data base.
Form B users have to insert the latitude and longitude , of the location themselves.
The name of the location has also to be inserted. This will appear at the head of the table.
As a check, and for possible use when copy and pasting, We find it useful to insert the latitude and longitude in degrees-minutes, in the same box as the name of the location
Arriba © Ciencias y Artes Patagonia, 2009 last update :090515