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HD 138085


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Публикации по объекту

Classification of Population II Stars in the Vilnius Photometric System. II. Results
The results of photometric classification of 848 true and suspectedPopulation II stars, some of which were found to belong to Population I,are presented. The stars were classified using a new calibrationdescribed in Paper I (Bartkevicius & Lazauskaite 1996). We combinethese results with our results from Paper I and discuss in greaterdetail the following groups of stars: UU Herculis-type stars and otherhigh-galactic-latitude supergiants, field red horizontal-branch stars,metal-deficient visual binaries, metal-deficient subgiants, stars fromthe Catalogue of Metal-deficient F--M Stars Classified Photometrically(MDPH; Bartkevicius 1993) and stars from one of the HIPPARCOS programs(Bartkevicius 1994a). It is confirmed that high galactic latitudesupergiants from the Bartaya (1979) catalog are giants or even dwarfs.Some stars, identified by Rose (1985) and Tautvaisiene (1996a) as fieldRHB stars, appear to be ordinary giants according to our classification.Some of the visual binaries studied can be considered as physical pairs.Quite a large fraction of stars from the MDPH catalog are found to havesolar metallicity. A number of new possible UU Herculis-type stars, RHBstars and metal-deficient subgiants are identified.

Determination of effective temperatures and surface gravities of metal-deficient K-G giants in the Vilnius photometric system
Not Available

Luminosity Function and Space Motions of G8-K1 Stars Derived from Spectroscopic Parallaxes.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...122..222H&db_key=AST

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Наблюдательные данные и астрометрия

Созвездие:Змея
Прямое восхождение:15h29m12.12s
Склонение:+16°23'44.2"
Видимая звёздная величина:6.388
Расстояние:153.139 парсек
Собственное движение RA:-33
Собственное движение Dec:61.3
B-T magnitude:7.592
V-T magnitude:6.488

Каталоги и обозначения:
Собственные имена
HD 1989HD 138085
TYCHO-2 2000TYC 1494-442-1
USNO-A2.0USNO-A2 1050-07517878
HIPHIP 75810

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