HD 4351

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A catalog of precise reference star positions for the astrometry network of the international comet P/Halley compaign
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...71..525D&db_key=AST

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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Ýlgili Baðlantýlar

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sonraki gruplarýn üyesi:

Gözlemler ve gökölçümü verileri

Takýmyýldýz:	Baliklar
Sað Açýklýk:	00^h46^m04.27^s
Yükselim:	+12Â°06'26.5"
Görünürdeki Parlaklýk:	8.292
Uzaklýk:	110.619 parsek
özdevim Sað Açýklýk:	92.8
özdevim Yükselim:	8.9
B-T magnitude:	8.889
V-T magnitude:	8.342

Kataloglar ve belirtme:

Özgün isimleri
HD 1989	HD 4351
TYCHO-2 2000	TYC 607-359-1
USNO-A2.0	USNO-A2 0975-00162389
HIP	HIP 3598

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