What does it mean to follow blindly in celestial photography?

Generally, it refers to direct tracking, and there is no need for guiding stars. In this case, the test is the manufacturing accuracy of the equatorial instrument itself.

In actual shooting, in order to obtain higher tracking accuracy, even a professional observatory needs a set of star guiding equipment. From the original artificial satellite guide rail to the present CCD automatic satellite guide rail, the purpose is to correct the tracking error of the equatorial plane by monitoring the tracking state of the equatorial plane.