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HD 32086


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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.

Supplement to the Second Catalogue of Am Stars with Known Spectral Types (end 1981)
Not Available

Visual multiples. VII - MK classifications
Classifications are given for 865 components of visual multiples; theyshow no systematic differences from the MK system, and the random errorsare one subclass in type and two-thirds of a luminosity class. It isfound that at least 1% of the F-type IV and V stars are weak-lined, 32%of the A4-F1 IV and V stars are Am, and 5% of the A0-A3 IV and V starsare early-type Am. Attention is called to the large fraction (55%) ofthe A3-A9 III-V stars that are of luminosity classes III or IV, unlikethe percentage (16%) at neighboring types.

Variable and Potential Variable Stars in the Bright Star Catalogue
Not Available

Micrometer observations of double stars.8.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975ApJS...29..315H&db_key=AST

Micrometric Measures of Double Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974ApJS...28..413V&db_key=AST

Mikrometermessungen von Doppelsternen. VII
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1..393H&db_key=AST

Measures of 313 doubles stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1963AJ.....68..114W&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Zurafa
Sað Açýklýk:05h08m03.12s
Yükselim:+73°35'29.4"
Görünürdeki Parlaklýk:8.242
Uzaklýk:154.083 parsek
özdevim Sað Açýklýk:-23.2
özdevim Yükselim:2.7
B-T magnitude:8.51
V-T magnitude:8.265

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 32086
TYCHO-2 2000TYC 4354-140-1
USNO-A2.0USNO-A2 1575-02240536
HIPHIP 23891
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