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Photographic observations of the dwarf nova SS UMi |
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| Authors: | G A Richter |
| Abstract: | Observations on 4180 sky patrol plates of Sonneberg Observatory showed that this star belongs to the SS Cygni subclass of cataclysmic variables with cycle length between about 30 and 48 days. Possible orbital periods are discussed. |
| Keywords: | variables Dwarf Novae SS UMi |