Method for adjusting an equatorial or altazimuth mount

The present invention relates to a method for readjusting a parallactic or azimuthal mounting, comprising a device which is intended for positioning and moving a telescope with a camera and can be aligned and readjusted by means of at least one image sensor and an electromotorized controller, characterized in that the image sensor acts as a main recording sensor of the camera and at the same time as an alignment sensor and readjustment control sensor, wherein before and after a main image is taken at least one control image is taken with a shorter exposure time and these control images are compared with one another, or at least a main image itself acts as a control image and is compared with at least one previous main image, or a short-exposed control image is compared with the main image itself and the correction values for the readjustment of the mounting are determined by the image offset and the time difference of the images taken. The method is the prerequisite for easy, error-free operation of an astronomical mounting for the purpose of long-exposure astronomical photography.