SYSTEM AND METHOD FOR MONITORING GALACTIC TIME

摘要

The disclosed methods and device 26 for time-keeping precisely calculate data relating to the center of the Milky Way galaxy. A method of time-keeping includes determining a direction of the galactic center at a desired time, and at least one of the rise time, rise azimuth, and current elevation angle of the galactic center is calculated. Determining the direction may include calculating the coordinates of the galactic center in a celestial coordinate system of a predetermined ephemeral date. These coordinates are then transformed to a celestial coordinate system of the desired time. The transforming may include accounting for the precession of the equinox, the precession of the ecliptic plane, and variation of obliquity to the ecliptic. An indicator of the rise time 28, the rise azimuth 30 and/or the current elevation angle 32 is then displayed. The rise time, the rise azimuth and the current elevation angle may be determined for a desired position on Earth.