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HD 105845

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Optical identifications of the IRAS faint sources in the Virgo cluster area. This paper presents a study on the deep optical identifications of 369IRAS faint sources in a 102 square degree area centered on the Virgocluster. We obtained the positions and magnitudes of candidates fromfour UK Schmidt Telescope IIIa-J direct plates. 89 (24%) are identifiedas stars and 276 (75%) as galaxies. There are 4 (1%) empty fields to theplate limit of B=~22. The infrared-optical database for 193 FSC-onlysources is given. Most of the IRAS galaxy sources are spirals. There are83 IRAS galaxy sources being regarded as the cluster members by Binggeliet al. (1985). In our sample, a correlation between the luminosity ratioL_IR_/L_B_ and the infrared flux ratio F(100μm)/F(60μm) isevident. For the member galaxies, a weak correlation between L_IR_/L_B_and L_IR_ is also found.
Large and kinematically unbiased samples of G- and K-type stars. V - Evolved stars in the selected areas at + 15-deg declination Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1990PASP..102..242E&db_key=AST
Accuracy of two-dimensional spectral classes derived through DDO photometry. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977AJ.....82..832Y&db_key=AST
Photoelectric radial velocities. IV. 528 7 to 10 mag stars in the +15degree selected areas. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971MNRAS.155....1G&db_key=AST
Bergedorfer Spektral-Durchmusterung der 115 noerdlichen Kapteynschen Eichfelder - Bd.4: Eichfeld 68 bis 91, Deklination +15 deg. Not Available

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观测天体数据

星座:	后髮座
右阿森松:	12^h11^m00.30^s
赤纬:	+14Â°25'27.8"
视星:	8.47
距离:	1149.425 天文距离
右阿森松适当运动:	-6.4
赤纬适当运动:	-3.8
B-T magnitude:	10.465
V-T magnitude:	8.635

目录:

适当名称
HD 1989	HD 105845
TYCHO-2 2000	TYC 872-976-1
USNO-A2.0	USNO-A2 0975-06903731
HIP	HIP 59386

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