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CCD photometric study of a contact binary HH Ursae Majoris |
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| Institution: | 1. Department of Physics and Astronomy, Shumen University, Shumen 9700, Bulgaria;2. Institute of Astronomy and NAO, Bulgarian Academy of Sciences, 72 Tsarigradsko Shose Blvd., Sofia 1784, Bulgaria |
| Abstract: | |
| Keywords: | Stars: binaries: close Stars: individuals: HH Ursae Majoris Stars: magnetic fields: spots |
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