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HD 210728

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UBV photometry of faint southern blue stars UBV photometry of 79 faint southern blue stars is reported. Theseobjects were taken primarily from the lists of Jaidee and Lynga and ofChavira. From their positions in the two-color diagrams, a table ofprobable white dwarfs is derived. The colors of additional peculiarsources, including the X-ray quasar 2A2251 - 179, two Fairall galaxies,and the Glass-Zuiderwijk optical identification of the X-ray source2S1702 - 363 and white dwarfs are also given.
Photometry of faint blue stars - III. Hbeta photometry of some southern stars. Abstract image available at:http://adsabs.harvard.edu/abs/1977MNRAS.178..369K
Photometry of faint blue stars. II - A second list of southern stars Photometry in the uvby system is given for 61 faint blue stars. Thestars are classified by means of the Stroemgren indices, usingpreviously described criteria.
A search for flare stars in the Orion Nebula region Not Available

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Osservazione e dati astrometrici

Costellazione:	Ottante
Ascensione retta:	22^h18^m47.05^s
Declinazione:	-80Â°58'46.7"
Magnitudine apparente:	9.596
Moto proprio RA:	10.7
Moto proprio Dec:	-4
B-T magnitude:	10.18
V-T magnitude:	9.645

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 210728
TYCHO-2 2000	TYC 9487-432-1
USNO-A2.0	USNO-A2 0075-06930912
HIP	HIP 110158

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