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GeoAstro
Applets

Astronomy
physics,astronomy,software,applet,java,shareware,sun,moon,earth,day,night,sundial,java












                    applet
Chaos Game
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Java
physics,astronomy,software,applet,java,shareware,sun,moon,earth,day,night,sundial,java












                    applet
Miscel-

laneous

astronomy,Java,applet,sun,earth,moon,day,night,azimuth,elevation,sunrise,sunset,altitude,horizon,GHA,declination
Please be patient, 160 kB of Java byte code have to be loaded ...

Enable Java to run the applet !

The world map is from Mac OS system software. Copyright by Apple Computer, Inc.


Location:

Select your location from the menu list, or


Select latitude (northern positive, southern negative),
and longitude (eastern positive, western negative)
from the menus:

latitude longitude  


or simply click into the word map.

Look up your coordinates:

location database of DLR (Deutsches Zentrum für Luft- und Raumfahrt): 2 million towns and villages world-wide, or in the database here, or for North American cities here.

Key commands:

you may use the keys "m", "d", "h", "n" to increase the month, date, hour, or minute,
or
Shift key and "m", "d", "h", "n" to decrease the month, date, hour, or minute !
Click the applet first !


you may enter your home location and change the horizon view image

All data

can be written to data window

Explore eclipses

Check out the days of New Moon and Full Moon and look for Eclipses of the Sun or the Moon. Details here.

Please report bugs !

Interactive time zone map of countries around the world



  Version francaise par Yvan Lemay  

Sun Calulator JavaScripts



 

What the applet SHOULD look like

Watch animations

The "real" Sun and Moon


Applet details:



Basics

Positional Astronomy and Ephemerides


Please visit my pages:

Output to a Data Window:

 

The coordinates of the Sun:
longitude L: geocentric, apparent, true equinox of date
Right Ascension and Declination: apparent, true equinox of date

Compare data with U.S. Naval Observatory Astronomical Applications Department - Data Services

For a table of rise, set and twilight times visit my "Daylight Applet"

Compare sunrise and sunset times

Last Modified: 2023, Oct 06