SPC
Description:SPC is Free program for WindowsThis Sun Position Calculator wish evaluate the stance of the bottom and top of the Sun´s rim, sunset and sunrise time at any geographical place (characterized by observational height, latitude and longitude) at any date (between 1900- 2100) and time. SPC wish also indicate the twilight or when the Sun is not visible. A comestible with latitudes and longitudes, and GMT+ seeking some greater cities approximately the planet is incorporated.
The Sun´s stance is characterized by the elevation angle associated to the horizon and azimuth associated to the North aiming. Since the observed stance of the Sun can be effected by the refraction of the light rays in the atmosphere (specifically seeking low elevation angles), the program gives both the real stance of the Sun (without atmospheric refraction) and the observed elevation and azimuth (when atmospheric refraction is accounted). The same remarks are valid seeking sunset and sunrise time. Atmospheric refraction is charmed into justify in a more sensible mode, than in other available Sun Position Calculators. We compute the refraction corrections by using a Standard Atmosphere replica. In disposition to solicit a sensible atmosphere contour the program needs as input the expected temperature and pressure seeking an arbitrary chosen altitude.
To exercise and initiate SPC, download spc.zip and unzip it on your computer. The directory SPC wish be created, with four files in it: "SPC.exe", "LatLonGMT.chm", "SPC.ini" and "SPCHelp.chm". The documentation "SPC.exe" is the executable, and the other three files are databases and texts used unswervingly by SPC.exe. "LatLonGMT.chm" is a database with Latitudes, Longitudes and GMT+ seeking some greater cities and countries approximately he planet, "SPCHelp.chm" is the help-file and "SPC.ini" is a documentation in which the program remembers the last input parameters. The program runs by launching "SPC.exe".
Authors: Sandor Volkan-Kacso and Zoltan Neda s. |
