A new method for imaging faint objects nearby a bright source

In astronomical observation, it is difficult to obtain the image of faint o bjects in the peripheral area around a bright celestial body. In order to s olve the problem, a new method is designed and experimented, which is calle d the separation readout technique (SRT). SRT is different from either the traditional coronagraphy or the newly-developed anti-blooming CCD technique , and allows an enough-long exposure to the faint objects in the area aroun d a bright celestial body with the well-preserved bright body's image in on e frame. This paper describes in detail the principle of SRT, the computer simulation, the experimental devising and result of SRT observation on a te lescope.