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A revised catalogue of delta Sct stars
An extensive and up-dated list of delta Sct stars is presented here.More than 500 papers, published during the last few years, have beenrevised and 341 new variables have been added to our last list, sixyears ago. This catalogue is intended to be a comprehensive review onthe observational characteristics of all the delta Sct stars known untilnow, including stars contained in earlier catalogues together with othernew discovered variables, covering information published until January2000. In summary, 636 variables, 1149 references and 182 individualnotes are presented in this new list. Tables 1 and 2 will be accessibleonly in electronic form at the CDS via anonymous ftp tocdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
| The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.
| Speckle observations of spectroscopic binaries
Results from speckle observations of binary stars carried out between1987 and 1990 using a 212-cm telescope at the San Pedro MartirObservatory, Mexico, are presented. Fringe patterns for 21 of the 76reduced spectroscopic binaries in the Fourier domain were detected. Thespeckle observations and the astrometric observations are consistent forthe stars HD41116, HD202275, and HD206901.
| Speckle observations of visual and spectroscopic binaries.
Speckle observations performed for 16 visual and 79 spectroscopicbinaries with the 212-cm telescope at San Pedro Martir Observatory arepresented. The data were collected over a period of 20 nights, from June15 to July 11, 1987. Examples are given of the power spectra of starswith differing angular separations.
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Member of following groups:
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Observation and Astrometry data
| Constellation: | Schwan |
| Right ascension: | 19h33m29.78s |
| Declination: | +36°01'19.2" |
| Apparent magnitude: | 7.35 |
| Distance: | 130.548 parsecs |
| Proper motion RA: | -37 |
| Proper motion Dec: | -10.9 |
| B-T magnitude: | 7.735 |
| V-T magnitude: | 7.382 |
Catalogs and designations:
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