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HD 43210

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New UBVRI photometry for 900 supergiants A description is presented of the results obtained in connection with asystematic program of supergiant photometry on the Johnson UBVRI system.During the eight years after the start of the program, almost 1000 starshave been observed, about 400 three or more times each. The originalselection of stars used the spectral type catalog of Jaschek et al.(1964) to choose supergiants. Since observations were possible from bothChile and Canada, no declination limits were imposed, and no particularselection criteria were imposed other than to eliminate carbon stars.These are so red as to require enormous extrapolations of thetransformation equations.
Five-channel photometry of cepheids and supergiants in the southern Milky Way. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1976A&AS...24..413P&db_key=AST
Stellar Spectra in Milky way Regions. VIII. a Region in Orion. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...23M&db_key=AST
Spectral Classification of Stars Noted on Case Objective-Prism Plates. I Not Available
A Finding List of F Stars of High Luminosity. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1952ApJ...115..475N&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Orione
Ascensione retta:	06^h15^m30.88^s
Declinazione:	+12Â°05'22.8"
Magnitudine apparente:	8.011
Moto proprio RA:	-8.1
Moto proprio Dec:	-24.5
B-T magnitude:	8.549
V-T magnitude:	8.056

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 43210
TYCHO-2 2000	TYC 739-2061-1
USNO-A2.0	USNO-A2 0975-02830391

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