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HD 137505


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A large, complete, volume-limited sample of G-type dwarfs. I. Completion of Stroemgren UVBY photometry
Four-colour photometry of potential dwarf stars of types G0 to K2,selected from the Michigan Spectral Catalogues (Vol. 1-3), has beencarried out. The results are presented in a catalogue containing 4247uvby observations of 3900 stars, all south of δ = -26deg. Theoverall internal rms errors of one observation (transformed to thestandard system) of a program star in the interval 8.5 < V < 10.5are 0.0044, 0.0021, 0.0039, and 0.0059, respectively, in V, b-y, m_1_ ,and c_1_. The purpose of the catalogue, combined with earliercatalogues, is to allow selection of a large, complete, volume-limitedsample of G- and K-type dwarfs, investigate their metallicitydistribution, and compare it to predictions of various models ofgalactic chemical evolution. Future papers in this series will discussthese subjects.

UBV(RI)c photometry for CaII emission stars. II - Observations at Mt. John University Observatory and at Mt. Stromlo
UBV(RI)c data are given for 17 stars with strong Ca II H and K emission.Techniques of observation and reduction are described briefly.

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Observation and Astrometry data

Constellation:Triangle austral
Right ascension:15h29m48.60s
Declination:-63°16'02.1"
Apparent magnitude:8.691
Distance:591.716 parsecs
Proper motion RA:1.1
Proper motion Dec:1.9
B-T magnitude:10.601
V-T magnitude:8.849

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 137505
TYCHO-2 2000TYC 9026-3202-1
USNO-A2.0USNO-A2 0225-22900593
HIPHIP 75866

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