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CCD photometry and astrometry of visual double and multiple stars of the HIPPARCOS Catalogue. II. CCD photometry and differential astrometry of 288 southern ``Intermediate'' systems
We present photometric and astrometric data of about 280 visual doublestars of the ``intermediate'' class, i.e. with angular separationsmainly in the range 2arcsec < rho < 12arcsec . The observationshave been obtained in 1991-92 with a CCD camera attached to the 91 cmDutch telescope at ESO La Silla, Chile. Differential magnitudes of thedouble star components as well as magnitudes and colour indices of theindividual components have been determined in the Cousins V and Ipassbands with an internal error of about 0.005 mag and an externalaccuracy of less than 0.03 mag. In addition, angular separations havebeen secured to an internal accuracy of 0.004arcsec and position anglesto about 0.05degr. Tables 1 to 4 are only available in electronic format the CDS via ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html. Based on observationscollected at the European Southern Observatory, La Silla, Chile.
| Mining in the HIPPARCOS raw data
The Hipparcos solutions flagged as unreliable after the completion ofthe standard data processing have been systematically revisited in thelight of additional information, primarily related to theirmultiplicity. In many cases improved solutions have been obtained,yielding at the same time an Hipparcos based separation and positionangle and a better astrometric solution for the system. The principlesapplied in this reprocessing are explained and more than a hundred newsolutions with absolute and relative astrometry are presented anddiscussed. Tables 1 to 7 are also available in electronic form at theCDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/Abstract.html
| Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.
| Mesures d'étoiles doubles effectuées au télescope de 80 cm. de l'Observatoire de Marseille
Not Available
| Mesures d'étoiles doubles obtenues au télescope de Marseille. Mouvements Observés sur quelques couples
Not Available
| Mesures d'étoiles doubles faites au réfracteur de 38 cm. de l'Observatoire de Nice
Not Available
| Mesures d'Etoiles Doubles La grande Lunette de Nice et l'étude des Binaires de petites masses
Not Available
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Datos observacionales y astrométricos
| Constelación: | Orión |
| Ascensión Recta: | 04h59m51.10s |
| Declinación: | +00°30'38.9" |
| Magnitud Aparente: | 10.854 |
| Movimiento Propio en Ascensión Recta: | 36 |
| Movimiento Propio en Declinación: | -11.7 |
| B-T magnitude: | 11.236 |
| V-T magnitude: | 10.886 |
Catálogos y designaciones:
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