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civil twilight: nautical twilight: astronomical twilight: |
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the altitude (above horizon) and azimuth angle of the
sun 0 deg. = N, 90 deg. = E |
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enter latitude, and press
return key |
- degrees latitude as |
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enter longitude, and press
return key |
- degrees longitude as a |
Change the parameter values of "location", "latitude" and "longitude" parameters:
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<APPLET
CODE="sunviewxxx.class" archive="Applet/JavaClasses.jar" <PARAM name="email" value="replace"> </APPLET> |
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time difference between zone time and Greenwich Time (GMT ) With Netscape 4 and Internet Explorer 4, the applet should display the correct time zone offset: |
Central European Daylight Time = GMT + 2 hours |
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the declination and Greenwich-Hour-Angle (GHA) are the coordinates (latitude and longitude) of the sun's Geographical Position (GP), where the line from the sun to the center of the earth intersects it's surface. |
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The Equation of time is the difference between the time determined by a sundial and the clock time. It is due to the obliquity and the unequal motion of the sun (ellipse). |
For detailed information: |
USNO Master Clock Animated GIF Clock:
Click to see the correct GMT (UTC) |
The running GIF clock was developed for browsers that
support "Content-type: multipart/x-mixed-replace" |