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HD 106558


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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The UV spectrum as a signature of the Lambda Bootis character
The spectra of all the stars previously classified as Lambda Bootisstars and observed by the IUE satellite at low resolution, in the shortwavelength range, are analyzed. The usefulness of this spectral rangefor classifying the Lambda Boo stars is shown; the UV criteria used todistinguish the Lambda Boo stars from other metal-deficient stars areselected and applied. The origin of the Lambda Boo phenomenon is not yetclear (Baschek and Slettebak, 1988) and a careful selection of thecandidates is the first step for a clear definition of the theoreticalproblem. From the present study, it turns out that only seven out of the19 candidates can be assigned to the Lambda Boo group, while for theother stars the previous classification must be considered eroneous. Thepeculiarities of the other metal-deficient, but not Lambda Boo, starsare discussed.

Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Four - a Catalogue of Uvbyr Photometry and Derived Quantities
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Further Studies of A-Stars and F-Stars in the Region of the North Galactic Pole - Part Three - a Catalogue of Star Names and Positions
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Studies of A and F stars in the region of the North galactic pole-II. uvby β photometry
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Studies of A and F stars in the region of the North galactic pole-I. Radial velocities and MK Classifications
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Space distribution of stars of intermediate spectral type in a North galactic pole region.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1963AJ.....68..194U&db_key=AST

Investigations on the stars in high galactic latitudes. III. Spectrophotometric analysis of about 3000 stars down to the photographic magnitude 13.5.
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Stars with large proper motions in the astrographic zones+ 32° and + 33° (List I)
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观测天体数据

星座:后髮座
右阿森松:12h15m20.54s
赤纬:+32°39'03.5"
视星:8.959
右阿森松适当运动:-95.1
赤纬适当运动:6.8
B-T magnitude:9.52
V-T magnitude:9.006

目录:
适当名称   (Edit)
HD 1989HD 106558
TYCHO-2 2000TYC 2527-2083-1
USNO-A2.0USNO-A2 1200-06869442
HIPHIP 59765

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