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HD 44870


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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

Catalog of BV magnitudes and spectral classes of 6000 stars
The present catalog, compiled at the Abastumani Observatory, contains BVmagnitudes and spectral classes of about 6000 stars up to V(lim) = 13.0min five circular areas of 18 sq deg located near the salactic-equatorplane. The catalog is intended for star-statistics studies ofstar-formation regions.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tekboynuz
Sað Açýklýk:06h24m22.78s
Yükselim:+05°19'26.7"
Görünürdeki Parlaklýk:8.811
Uzaklýk:2941.176 parsek
özdevim Sað Açýklýk:0.1
özdevim Yükselim:-8.6
B-T magnitude:8.791
V-T magnitude:8.81

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 44870
TYCHO-2 2000TYC 141-525-1
USNO-A2.0USNO-A2 0900-02882223
HIPHIP 30473

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