Celestron Compustar Manual de instrucciones descargar pdf (Pagina 45)

Figure 22. M57, the Ring Nebula in Lyra, enlarged and cropped from the image in Figure

21. Note the fine structure detail in the upper right portion of the ring and the wisps of

nebulosity visible inside the ring around the central star. The fact that the above image can

bear this degree of enlargement and still show this amount of detail is amazing and is

largely due to the sub-pixel accuracy of the autoguiding used to acquire the data.

With this initial success, the author felt he could confidently move on to long exposure imaging

with a cooled CCD camera and purchased the SBIG STL 11000M shown in Figures 19A and

19B, which is one of SBIG‟s self-guiding cameras. The results, some of which are shown in

Figures 23 and 24, show dramatic improvements over those obtained with the DSLR.

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Celestron Compustar Manual de instrucciones Pagina 45