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HD 48150


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Photoelectric Observations of Southern Cepheids in 2001
A total of 2097 photometric observations in the BVIc systemare presented for 117 Cepheids located in the southern hemisphere. Themain purpose of the photometry is to provide new epochs of maximumbrightness for studying Cepheid period changes, as well as to establishcurrent light elements for the Cepheids.

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

Secondary standards for H-beta photometry in the E regions.
Not Available

UBV (RI)c standard stars in the E- and F-regions and in the Magellanic Clouds - a revised catalogue.
Not Available

Secondary standards for the Stromgren UVBY system
Observations of 158 E region stars have been made in the Stromgrensystem, using the 46-cm reflector at Cape Town. They are mostly brighterthan eighth magnitude and are intended for use as secondary standardsfor the four-color system. The E region relative zero points are definedwith a precision of + or - 0.001 mag, and the internal standard errorsof the colors life between + or - 0.001 and + or - 0.002 mag.

HD 47147 - A small-amplitude extreme metal-poor RRab pulsating variable
The photometric variations and physical and kinematical properties of HD47147, a ninth magnitude metal-deficient star, are discussed. The longperiod (0.79732 days), the small amplitude (0.17 mag in the visualband), and the mean effective temperature of 6160 K of this RR Lyraepulsating variable can be understood by its location near the red edgeof the instability strip. The extreme Population II characteristics ofHD 47147 are confirmed by its kinematical properties. The temperatureand the relatively high luminosity derived are consistent with bothpossibilities that HD 47147 is a red horizontal branch star or that itis a suprahorizontal branch star actually evolving redward toward theasymptotic branch. Its low amplitude suggests the possibility that thered edge of the instability strip corresponds to a smooth transitionfrom variable to non-variable stars.

Photoelectric standards of intermediate brightness in the E-regions. I. UBV photometry.
Not Available

Photometric standard stars for the UBV and (RI)KC systems.
Not Available

VRI standards in the E regions
Not Available

Standard Stars for VRI Photometry with S25 Response Photocathodes [Errata: 1974MNSSA..33....1C]
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Standard magnitudes in the E regions.
Not Available

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Observation and Astrometry data

Constellation:Poupe
Right ascension:06h39m46.81s
Declination:-43°24'10.4"
Apparent magnitude:7.384
Distance:531.915 parsecs
Proper motion RA:-12.1
Proper motion Dec:8.9
B-T magnitude:7.219
V-T magnitude:7.371

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 48150
TYCHO-2 2000TYC 7626-14-1
USNO-A2.0USNO-A2 0450-02852464
HIPHIP 31875
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