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HD 4027


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Ýlgili Makaleler

Positional reference stars in the Magellanic Clouds
The equatorial coordinates are determined of 926 stars (mainly ofgalactic origin) in the direction of the Magellanic Clouds at the meanepoch T = 1978.4 with an overall accuracy characterized by the meanvalues of the O-C coordinates, Sa = 0.35 arcsec and Sd = 0.38 arcsec,calculated from the coordinates of the Perth reference stars. Thesevalues are larger than the accuracy expected for primary standard stars.They allow the new positions to be considered as those of reliablesecondary standard stars. The published positions correspond to anunquestionable improvement of the quality of the coordinates provided inthe current catalogs. This study represents an 'astrometric step' in thestarting of a 'Durchmusterung' of the Magellanic Clouds organized by deBoer (1988, 1989).

Etude DU Petit Nuage de Magellan par la technique DU prisme-objectif de Fehrenbach.
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tukan
Sað Açýklýk:00h41m26.60s
Yükselim:-73°06'46.5"
Görünürdeki Parlaklýk:10.008
özdevim Sað Açýklýk:-61.7
özdevim Yükselim:1.8
B-T magnitude:10.818
V-T magnitude:10.075

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 4027
TYCHO-2 2000TYC 9141-2398-1
USNO-A2.0USNO-A2 0150-00361320
HIPHIP 3254

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