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Pulsation behavior of classical Am star 60 Tauri
Five nights photoelectric photometric observations through v and y bandsconfirm the pulsation of classical Am δ Scuti variable 60 Tau.Power spectrum of light curves shows multi-period pulsation behavior of60 Tau and two pulsation modes f1=13.0364 andf2=11.8521 cycles per day are definitely identified.Classical Am star 60 Tau is a complicated pulsation δ Scutivariable. Considering the pulsation constant Q, 60 Tau is identified tobe low overtone f or p1 modes tendentiously.
| UBV polarimetry of 361 A- and F-type stars in selected areas
We present simultaneous UBV linear polarization measurements for 361 A-and F-type stars with accurate colour excess and distance determination.These stars are distributed in 35 Kapteyn's Selected Areas, covering thethird and fourth quadrants of the galactic plane (|b| <= 30degr ).The obtained polarization and the known colour excess are compared. Ananalysis of the polarization distribution as a function of the stellardistance is also performed. Based on observations collected at theEuropean Southern Observatory (ESO), La Silla, Chile.
| Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.
| Helligkeiten und Eigenbewegungen in den Hyaden. Mit 6 Textabbildungen
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Observation and Astrometry data
| Constellation: | Taureau |
| Right ascension: | 04h21m45.34s |
| Declination: | +13°35'05.8" |
| Apparent magnitude: | 7.361 |
| Distance: | 127.065 parsecs |
| Proper motion RA: | -3.9 |
| Proper motion Dec: | -0.1 |
| B-T magnitude: | 7.572 |
| V-T magnitude: | 7.379 |
Catalogs and designations:
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