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Photographic measures of double stars. II
Measures are presented for 302 double stars photographed on 657 plateswith the 36-in. Lick refractor in the period between 1945 and 1962. Thedata provided include the observing epochs, the rectangular coordinatesof the secondary components with reference to the respective primaries,the mean errors of a single measurement, the computed mean errors, thedouble-star separations, and the position angles both for the observingepoch and reduced to the equator of 2000. An additional 561 unmeasuredplates of acceptable quality obtained between 1948 and 1960 are listed.
| 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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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Zurafa |
| Sað Açýklýk: | 04h48m01.72s |
| Yükselim: | +53°07'19.2" |
| Görünürdeki Parlaklýk: | 7.568 |
| Uzaklýk: | 133.69 parsek |
| özdevim Sað Açýklýk: | -5.8 |
| özdevim Yükselim: | 1.6 |
| B-T magnitude: | 7.81 |
| V-T magnitude: | 7.588 |
Kataloglar ve belirtme:
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