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HD 195029


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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.

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Observation and Astrometry data

Constellation:インディアン座
Right ascension:20h30m43.61s
Declination:-45°35'13.0"
Apparent magnitude:8.851
Distance:241.546 parsecs
Proper motion RA:12.4
Proper motion Dec:-1.1
B-T magnitude:10.904
V-T magnitude:9.021

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 195029
TYCHO-2 2000TYC 8406-126-1
USNO-A2.0USNO-A2 0375-38848808
HIPHIP 101194

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