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HD 121557

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Improved Mean Positions and Proper Motions for the 995 FK4 Sup Stars not Included in the FK5 Extension Not Available
Radial velocities of southern stars obtained with the photoelectric scanner CORAVEL. III - 790 late-type bright stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&AS...59...15A&db_key=AST
Close visual binaries. I - MK classifications Each component of 170 close visual binaries has been classified with newprocedures for controlling contamination problems. These classificationsare presented and are shown to be on the MK system. Two sources of areascanner UBV photometry were compared in order to establish homogeneousphotometric as well as spectroscopic data. From a consideration ofsystematic errors in the V magnitude difference (Delta V) betweencomponents the photometry of Hurly and Warner (1983) is to be preferred.Absolute magnitudes for each binary are derived from Delta V via atested MK - M(v) map.
Area Scanner Observations of Close Visual Double Stars - Part Two - Results for 153 Southern Stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1983MNRAS.202..761H&db_key=AST

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Сазвежђа:	Шестар
Ректацензија:	13^h58^m31.20^s
Deклинација:	-65Â°48'02.0"
Apparent магнитуда:	6.2
Даљина:	161.812 parsecs
Proper motion RA:	-34.7
Proper motion Dec:	-50.4
B-T magnitude:	7.605
V-T magnitude:	6.357

Каталог и designations:

Proper имена	(Edit)
HD 1989	HD 121557
TYCHO-2 2000	TYC 9016-1992-1
USNO-A2.0	USNO-A2 0225-18744351
BSC 1991	HR 5242
HIP	HIP 68270

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