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HD 131678

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New aperture photometry for 217 galaxies in the Virgo and Fornax clusters. We present photo electric multi-aperture photometry in UBVRI of 171 and46 galaxies in the Virgo and Fornax clusters, respectively. Many of thegalaxies have not been observed in at least one of these passbandsbefore. We discuss the reduction and transformation into the Cousinsphotometric system as well as the extinction coefficients obtainedbetween 1990 and 1993.
A homogeneous catalog of new UBV and H-beta photometry of B- and A-type stars in and around the Scorpius-Centaurus OB association B- and A-type stars in and near the Sco-Cen OB association areinvestigated with UBV and H-beta photometry to acquire data relevant tothe luminosity function of Sco-Cen. The measurements generally consistof two 10-s integrations of U, B, V, (W, N) filters, and theobservations are corrected iteratively for atmospheric extinction andinstrumental response. The data presented give the mean V magnitude,mean B-V, mean U-B, and the estimated uncertainties for these values.The catalog provides a homogeneous catalog of data for a large fieldwith stellar objects delineating membership to the association Sco-Cenand that affect the luminosity function of the aggregate.
Secondary UVBY standards in the Harvard E-regions Photoelectric uvby photometry for 201 stars which are already UBV (RI)cstandards is presented. The photoelectric data are closely tied to theCousins uvby standards and the stars should be suitable for use asfainter (7-11 mag) secondary standards.
Secondary standards for H-beta photometry in the Southern Hemisphere (second series). Not Available
UBV (RI)c standard stars in the E- and F-regions and in the Magellanic Clouds - a revised catalogue. Not Available
UBV photometry of E region standard stars of intermediate brightness Photometry data are given for 335 stars in the nine E regions.Observations were made using a photometer and filters on the 47 cmreflector at Cape Town. The stellar dispersions are summarized. Data arepresented in tabular form.
Photometric standard stars for the UBV and (RI)KC systems. Not Available
Fainter Standards for VRI Photometry in the E Regions Not Available
Standard magnitudes in the E regions. Not Available

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观测天体数据

星座:	豺狼座
右阿森松:	14^h56^m34.41^s
赤纬:	-46Â°57'01.6"
视星:	7.099
距离:	288.184 天文距离
右阿森松适当运动:	10
赤纬适当运动:	8.2
B-T magnitude:	7.773
V-T magnitude:	7.155

目录:

适当名称
HD 1989	HD 131678
TYCHO-2 2000	TYC 8284-505-1
USNO-A2.0	USNO-A2 0375-22822145
HIP	HIP 73115

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