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TYC 5048-47-1


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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.

Dwarf K and M stars in the southern hemisphere.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972AJ.....77..486U&db_key=AST

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Observation and Astrometry data

Constellation:Ophiuchus
Right ascension:16h32m48.37s
Declination:-01°44'52.5"
Apparent magnitude:10.184
Proper motion RA:-9.9
Proper motion Dec:3.8
B-T magnitude:12.507
V-T magnitude:10.376

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 5048-47-1
USNO-A2.0USNO-A2 0825-09448755
HIPHIP 81020

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