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HD 29741


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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.

Mesures d'etoiles doubles faites a Nice (5eme serie. Double star measurements made at Nice
We present the last observations from two lists: General program and MLRpairs, made with the 50~cm refractor of Nice Observatory.

Stars of Early Types in the Region of Stellar Association OB1 Observed with the Glazar Telescope
Not Available

Measurements of binary stars performed at Nice (Second series)
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1984A&AS...57..467M&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Zurafa
Sað Açýklýk:04h45m19.11s
Yükselim:+63°40'02.3"
Görünürdeki Parlaklýk:9.239
özdevim Sað Açýklýk:-0.1
özdevim Yükselim:0.2
B-T magnitude:9.449
V-T magnitude:9.257

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 29741
TYCHO-2 2000TYC 4082-1618-1
USNO-A2.0USNO-A2 1500-03878752
HIPHIP 22098
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