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HD 181462


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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.

Photometric observations of bright stars in the vicinity of Seyfert galaxies (I).
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tavus
Sað Açýklýk:19h24m02.71s
Yükselim:-59°29'35.2"
Görünürdeki Parlaklýk:8.919
Uzaklýk:546.448 parsek
özdevim Sað Açýklýk:11.3
özdevim Yükselim:-17.9
B-T magnitude:10.79
V-T magnitude:9.074

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 181462
TYCHO-2 2000TYC 8773-710-1
USNO-A2.0USNO-A2 0300-35709511
HIPHIP 95361

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