TYC 4279-146-1

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.
The 73rd Name-List of Variable Stars Not Available
Etude cinematique et photometrique d'une region de Cas. Not Available

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