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Effects of rotation on colours and line indices of stars. III - Binary and peculiar stars
The broad-band UBV colors and the intermediate band uvby colors of AlphaPersei, Pleiades, and the Scorpio-Centaurus association are analyzed forrotation effects. An attempt was made to discriminate normal singlestars from that of binary and peculiar stars after taking the observedrotation effects into account. It is found that the spread in theobserved colors does not in general allow such a discrimination, exceptthat the objects with large reddening are double-lined binaries,peculiar stars or emission-lined objects. The few normal stars in thesethree clusters with such large reddening are listed as they are likelyto belong to one of the above classes.
| UVBY beta study of A-and F-type visual binaries. I.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1976AJ.....81..107M&db_key=AST
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Observation and Astrometry data
| Constellation: | Serpens |
| Right ascension: | 18h40m35.44s |
| Declination: | +03°07'10.4" |
| Apparent magnitude: | 9.033 |
| Proper motion RA: | 0.3 |
| Proper motion Dec: | -12.1 |
| B-T magnitude: | 9.431 |
| V-T magnitude: | 9.066 |
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