Astro Sidereal Time

This app shows the sidereal time and other useful time formats like UTC, your own Time Zone, Julian Date etc. The sidereal time is commonly used by amateur astronomers for an accurate and precise adjustment of telescopes. Both the text color and the back ground color of this app can be changed easily to any color so no bright display will disturb the observation during the night. For an exact calculation of the sidereal time your longitude is needed. The longitude of your location / hometown can also be set.