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HD 4330


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UVBY photometry of HIPPARCOS stars
Photoelectric data in the uvby system have been obtained for 367southern stars of the Hipparcos Input Catalogue. Most of the stars are Fand G main sequence and fall in the magnitude range V = 9 to 10.

Cluster population incompleteness bias and the value of H(0) from the Tully-Fisher B0(T) relation
Data on the Virgo cluster and ten more distant clusters are the basis ofan evaluation of the influence of the cluster population incompletenessbias on the B-band Tully-Fisher relation. The data are well fitted by atheoretical curve that is obtained for a Hubble constant value of 72 +or - 5 km/sec per Mpc in the de Vaucouleurs local scale, confirming theconstant's previous determination in light of a study of the Malmquistbias for field galaxies. The true value for the Hubble constant isconcluded to lie within the 50-75 range, depending on the primarycalibration.

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Observation and Astrometry data

Constellation:ほうおう座
Right ascension:00h45m15.79s
Declination:-45°01'13.5"
Apparent magnitude:8.983
Distance:143.062 parsecs
Proper motion RA:20
Proper motion Dec:-7.8
B-T magnitude:9.607
V-T magnitude:9.035

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 4330
TYCHO-2 2000TYC 8031-360-1
USNO-A2.0USNO-A2 0375-00234876
HIPHIP 3543

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