Patent ID: 8279522

Claim:
A terminal device connectable to an automatic introduction apparatus for automatically introducing a target celestial object by controlling a rotation of an astronomical telescope around at least two axes, said terminal device comprising: an input operation section for executing a command operation on said automatic introduction apparatus; and an image display section for indicating a star map image for a predetermined area on a celestial sphere in accordance with a display scale factor, said input operation section having: a rotation command means for executing a command operation on a rotational driving of said astronomical telescope in a telescope control mode; and a scale factor input means for executing an input specification of said display scale factor for said star map image displayed in said image display section, wherein in said telescope control mode, a star map image corresponding to a position on a celestial sphere toward which said astronomical telescope is headed is displayed in said image display section, while a speed of rotation of said astronomical telescope controlled by said rotation command means is changed in accordance with a decreasing function of said display scale factor specified by said scale factor input means, in which a celestial object selecting mode allows the star map image to be displayed in said image display section independently from said position on said celestial sphere toward which said astronomical telescope is headed.