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HD 75140


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Large and kinematically unbiased samples of G- and K-type stars. IV - Evolved stars of the old disk population
Modified Stromgren and (R,I) photometry, along with DDO and Genevaphotometry, are presented for a complete sample of evolved old-disk Gand K giants in the Bright Star Catalogue. Stars with ages of between1.5 x 10 to the 9th and 10 to the 10th yr are found to have anear-normal distribution of heavy element abundances, centered on anFe/H abundance ratio of -0.1 dex. The old disk clusters NGC 3680 and IC4651 contain red-straggler young-disk giants that are probablycontemporaries of the blue stragglers in the clusters.

Large and kinematically unbiased samples of G- and K-type stars. II - Observations of evolved stars in the Bright Star sample. III - Evolved young disk stars in the Bright Star sample
Four color and RI observations were obtained for a large sample ofG-type and K-type stars in the Bright Star Catalogue. Data are firstpresented for 110 evolved stars. Photometry of evolved young diskpopulation stars have then been calibrated for luminosity, reddening,and metallicity on the basis of results for members of the Hyades andSirius superclusters. New DDO results are given for 120 stars.

Photoelectric radial velocities. V. 69 southern HR stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972MNRAS.155..449G&db_key=AST

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Dades d'Observació i Astrometria

Constel·lació:Hydra
Ascensió Recta:08h48m04.90s
Declinació:-06°33'31.0"
Magnitud Aparent:6.09
Distancia:204.499 parsecs
Moviment propi RA:15.5
Moviment propi Dec:-31.8
B-T magnitude:7.761
V-T magnitude:6.22

Catàlegs i designacions:
Noms Propis
HD 1989HD 75140
TYCHO-2 2000TYC 4876-1544-1
USNO-A2.0USNO-A2 0825-06563061
BSC 1991HR 3493
HIPHIP 43204
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