Compass

Use your cell phone as a compass. By rotating the phone so that the sun and/or moon icons match their location in the sky, the top of the phone will indicate true north.
New Features in Version 4.1

* Fixed corruption of JAR file.
* Fixed failure to load world map on Nokia 3rd edition phones.
* Improved format of info on Nokia phones.
* Reduced size of JAR by compressing world map images.
* Enlarged list of valid time zones for a given location.
* Improved "Please Wait" form with cancel option.
* Restored "Color" display option.
* Restored display of GTM.
* New icon.

New Features in Version 4.0

* User interface reorganized.
* Select location and destination using world map or airport code.
* Automatic daylight saving time adjustment.
* Load and save favorite locations or destinations.
* Display heading, distance, and local time of destination.
* Set arbitrary date and time.
* 12 hour or 24 hour time display option.
* "Prayer Focus" feature removed (replaced by "Destination").
* "Color" display option removed.

New Features in Version 3.0

* Displays times of sunrise, sunset, sun transit, moonrise, moonset, civil twilight, nautical twilight, and astronomical twilight.
* Phase of moon indicated by crescent shaped icon.
* Improved calculation accuracy.

New Features in Version 2.0

* Enter 3 or 4 letter airport code to indicate position instead of latitude and longitude. Airport database contains over 3000 airports, but consumes only 21K.
* Latitude / longitude entry is still permitted, and the problem with negative number entry is avoided by selecting North / South and West / East.
* Shows the great circle heading towards locations of religious significance. This feature provides the appropriate direction to face while praying for people of various faiths.
* Orientation options allow the screen to face down rather than up, and the top of the phone can point toward the sun or moon rather than North.
* Display options allow the color of the display to be selected. Different colors are available for day and night.
* Menu provides "Help" option to describe each selection.
* Display is automatically updated every 10 minutes.
* Displays message "No Sun or Moon" if neither is present in the sky.

Compass Web Site
http://www.qcontinuum.org/compass
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