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HD 124066


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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.

Identifications and limited spectroscopy for Luyten common proper motion stars with probable white dwarf components. I - Pair brighter than 17th magnitude
Identifications are provided for 103 bright Luyten common proper motion(CPM) stellar systems with m(pg) less than 17.0 mag containing likelywhite dwarf (WD) components. New spectral types are presented for 55components, and spectral types for 51 more are available in theliterature. With the CPM systems previously published by Giclas et al.(1978), the Luyten stars provide a uniform sample of nearly 200 pairs ormultiples brighter than 17h magnitude. Selection effects biasing thecombined samples are discussed; in particular, evidence is presentedthat fewer than 1 percent of wide WD binaries have been detected.

Observations of proper-motion stars. II.
Abstract image available at:http://adsabs.harvard.edu/abs/1965ApJ...142..925E

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Coban
Sað Açýklýk:14h10m55.77s
Yükselim:+15°12'55.8"
Görünürdeki Parlaklýk:8.311
Uzaklýk:57.504 parsek
özdevim Sað Açýklýk:-88.9
özdevim Yükselim:-71.3
B-T magnitude:9.132
V-T magnitude:8.379

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 124066
TYCHO-2 2000TYC 1468-1133-1
USNO-A2.0USNO-A2 1050-07109681
HIPHIP 69281

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