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HD 44267

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New periodic variables from the Hipparcos epoch photometry Two selection statistics are used to extract new candidate periodicvariables from the epoch photometry of the Hipparcos catalogue. Theprimary selection criterion is a signal-to-noise ratio. The dependenceof this statistic on the number of observations is calibrated usingabout 30000 randomly permuted Hipparcos data sets. A significance levelof 0.1 per cent is used to extract a first batch of candidate variables.The second criterion requires that the optimal frequency be unaffectedif the data are de-trended by low-order polynomials. We find 2675 newcandidate periodic variables, of which the majority (2082) are from theHipparcos`unsolved' variables. Potential problems with theinterpretation of the data (e.g. aliasing) are discussed.
Two-colour photometry for 9473 components of close Hipparcos double and multiple stars Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.
Ca II H and K Filter Photometry on the UVBY System. II. The Catalog of Observations Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1995AJ....109.2828T&db_key=AST
Large and kinematically unbiased samples of G- and K-type stars. II - Observations of evolved stars in the Bright Star sample. III - Evolved young disk stars in the Bright Star sample Four color and RI observations were obtained for a large sample ofG-type and K-type stars in the Bright Star Catalogue. Data are firstpresented for 110 evolved stars. Photometry of evolved young diskpopulation stars have then been calibrated for luminosity, reddening,and metallicity on the basis of results for members of the Hyades andSirius superclusters. New DDO results are given for 120 stars.
Radial velocities of southern stars obtained with the photoelectric scanner CORAVEL. III - 790 late-type bright stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&AS...59...15A&db_key=AST
Photoelectric determination of the colors of 286 stars south of declination -15 degrees. Not Available

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:	Karina
Sað Açýklýk:	06^h17^m51.70^s
Yükselim:	-52Â°43'59.0"
Görünürdeki Parlaklýk:	6.41
Uzaklýk:	263.158 parsek
özdevim Sað Açýklýk:	6.1
özdevim Yükselim:	1.6
B-T magnitude:	8.311
V-T magnitude:	6.559

Kataloglar ve belirtme:

Özgün isimleri	(Edit)
HD 1989	HD 44267
TYCHO-2 2000	TYC 8534-89-1
USNO-A2.0	USNO-A2 0300-02144604
BSC 1991	HR 2278
HIP	HIP 29913

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