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The distribution of Main-Sequence stars in the open cluster NGC 7789 |
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| Authors: | U Hopp |
| Institution: | (1) Wilhelm Foerster Sternwarte, Berlin, F.R.G. |
| Abstract: | By star counts on four plates with different limiting magnitudes, it was found that the relative frequency of Main-Sequence stars increases from the centre of the cluster to the boundary. It is shown that the stars of NGC 7789 are separated according to their masses. |
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