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OEJV# |
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0013 | X Cyg: observations from 1886 until today 403 kB | Ralf Meyer | | 2005-12-31 | | Because of methodical reasons many early observations of X Cygni between 1886 and 1914 are biased. Taking these biased data out of calculation there is no evidence of a period change left. Simbad object(s): X Cyg, | comments: 0 |
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