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TYC 6553-1866-1


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Inaccuracies in the spectral classification of stars from the Tycho-2 Spectral Type Catalogue
We compare the spectroscopic and trigonometric parallaxes of commonstars from the Tycho-2 Spectral Type and Hipparcos Catalogues. Thiscomparison has revealed that the distance estimations for theoverwhelming majority of stars by both methods yield very similarresults. However, there is a small fraction of stars for which thedistance estimates differ significantly. It is these stars that are thesubject of our study. We have been able to find the causes of thesedifferences.

UBV photoelectric photometry in four southern Milky Way fields
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970AJ.....75..324W&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Pupa
Sað Açýklýk:07h52m15.30s
Yükselim:-23°58'28.1"
Görünürdeki Parlaklýk:11.714
özdevim Sað Açýklýk:-3.8
özdevim Yükselim:0.1
B-T magnitude:11.496
V-T magnitude:11.696

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
TYCHO-2 2000TYC 6553-1866-1
USNO-A2.0USNO-A2 0600-07965478
HIPHIP 38421
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