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HD 22284


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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.

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Osservazione e dati astrometrici

Costellazione:Eridano
Ascensione retta:03h34m42.40s
Declinazione:-16°14'10.4"
Magnitudine apparente:8.94
Distanza:188.324 parsec
Moto proprio RA:-4.8
Moto proprio Dec:-29.5
B-T magnitude:10.156
V-T magnitude:9.041

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 22284
TYCHO-2 2000TYC 5874-542-1
USNO-A2.0USNO-A2 0675-01226501
HIPHIP 16687

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