Patent ID: 6844822

Claim:
A device for viewing an object, where the device is at a particular position on the Earth, at a particular time and on a particular date, said device comprising: a means for viewing the object, said means for viewing having a viewing axis; a processor operably connected to the means for viewing; a magnetic sensor, operably connected to the means for viewing and to the processor, said magnetic sensor adapted to provide the processor with azimuth data representing the azimuth angle of the means for viewing; a gravitational sensor, operably connected to the means for viewing and to the processor, said gravitational sensor adapted to provide the processor with nadir data representing the nadir angle of the means for viewing; a means for providing position data, representing the position of the means for viewing on the Earth, to the processor, said means for providing position data operably connected to the means for viewing and to the processor; a means for providing time and date data, representing the time and date, to the processor, said means for providing time and date data operably connected to the means for viewing and to the processor; a database operatively connected to the processor, said database containing data representing the azimuth angle and the nadir angle of each of a plurality of objects when observed from a particular position on the Earth, at a particular time and on a particular date; and a means for receiving a reference value of the magnetic field of the Earth at the particular position, said means for receiving operably connected to the processor.