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UBV (RI)c standard stars in the E- and F-regions and in the Magellanic Clouds - a revised catalogue.
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UBV(RI)c photometry of some standard sequences in the Harvard F regions and in the Magellanic Clouds
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1988MNRAS.231.1047M&db_key=AST

Differential population synthesis of early-type galaxies. I - Spectrophotometric atlas of synthesis standard spectra
Continuous spectrophotometry has been obtained for 200 objects at aresolution of 10-17 A over the wavelength region 3600-10,000 A.Kron-Cousins BVRI colors are computed from the spectra and compared withpublished photoelectric photometry. The (V - R)C color index is used togroup the individual observations to form synthesis standard spectra for48 common spectral types. The standard groups include a solar abundancesequence of most spectral types and luminosity classes, metal-rich andmetal weak G - K giant-branch sequences, and horizontal-branch giants.The variations with color, luminosity, and metallicity of severalprominent line strengths are discussed. The spectral atlas is availableas a FITS magnetic tape.

Standard Stars for VRI Photometry with S25 Response Photocathodes
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Dades d'Observació i Astrometria

Constel·lació:Hydrus
Ascensió Recta:03h28m16.05s
Declinació:-73°32'58.9"
Magnitud Aparent:8.175
Distancia:237.53 parsecs
Moviment propi RA:16
Moviment propi Dec:23.4
B-T magnitude:8.426
V-T magnitude:8.196

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 22167
TYCHO-2 2000TYC 9158-1157-1
USNO-A2.0USNO-A2 0150-01517568
HIPHIP 16162
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