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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.
| ICCD Speckle Observations of Binary Stars. XIII. Measurements During 1989- 1994 From the Cerro Tololo 4 M Telescope
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996AJ....111..936H&db_key=AST
| Orbital elements of five visual binary stars
An updating of the orbital elements, the dynamical parallax, and newestimates of the total masses of five well-known binary star systems ispresented. The systems comprise ADS 1615, 3341, 3472, 3573, and 5464.The data provided included date of observation, separation in arcsec,position angle with reference to the equinox of the year 2000, thenumber of nights observed and the position angle.
| Lichtelektrische UBV-Photometrie von Standardsternen und in vier Sternfeldern am Äquator
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| Takýmyýldýz: | Avci |
| Sað Açýklýk: | 04h50m27.33s |
| Yükselim: | +01°03'00.6" |
| Görünürdeki Parlaklýk: | 8.746 |
| özdevim Sað Açýklýk: | 12.1 |
| özdevim Yükselim: | -24.9 |
| B-T magnitude: | 9.177 |
| V-T magnitude: | 8.782 |
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