Most of the people not
really linked to the astronomy see the (Solar) Eclipses as the most important
events of all. In this window, the user will be able to know the Solar and Lunar
Eclipses in a desired place, during all the year.
Beside the information
above, this window let's the user choose the date and location, and then shows
the new moons for that year, also as the Lunar and Solar Eclipses for that year
in that place and even the way that all Solar Eclipses have in the entire globe
during that year.
group, you can find all the Lunar Eclipses that will occur in the desired year
in that place, also sa the type of the eclise and the time when it will be
Regarding to the
Solar Eclipses, and
since these are more importants (at least at a civil way) you can find the
datefor the occur, the typ of eclipse, the magnitude, the time that it will be
maximum and even the differnt contacts. In the next image you should see the
result that should appear if you choose the year of “2000”
and the location of “Coimbra,
It's important to take
in count the result for magnitude, since two values appear. The first one it's
regarding to diference between the Moon and Sun apparent radius, the second one
it's regarding to the obscured area of the Sun. In the example above, you can
see that the Moon's diameter it's 86% (100-14) less than the diameter of the
Sun, wich results in 6% of obscured Sun's area.
Regarding to the
Solar Eclipses Central Line you will find the following group:
In this group is a
list of all the locations that the shadow (the central point of the shadow) will
be pass (latitude and longitude), also as the date and the type of eclipse a data a que ocorre o evento e tipo de eclipse no respectivo momento.
Por defeito EfeCalc calcula estes valores de três em
três miat that moment. Another item is the Increment, the user can change
this value (in minutes) to have more or less detail.
However, if the user
want to see where the shadow will be passing, in an atlas, it's possible to draw
the graphic of the central line over a map. The only thing that the user have to
make it's click on the Map button on the right (the item Increment also
is important for the drawing, since that the program will draw the curve with so
many points it have in the central line lists. So a smaller increment results in
a better graphic).
• Map Window
In this window a map
will appear with some lines over it. That curves are the passage of the central
line of all the eclipses (in the choosen year) over the globe. The yellow curve
are the Annulars Eclipses and the red ones are the Totals. If the user want to
see more closer to the map, it's enough to move the pointer over the map and a
thumbnail (zoomed) appear in the right corner. This zoomed thumbnail can be more
zoomed or less, using the buttons "+" and "-". When moving the pointer over the
map, the latitude and longitude of the place appear in the left corner.
Since this map are
very precise and also pretty to show, EfeCalc gives the possibility to
print it or capture it and save it as an image
(see Capture Image in
Calendar), making it avaiable
to send it by email or even to be putted in a webpage.