J/AcA/41/167 UBV photometry in Berkeley 32 (Kaluzny+, 1991)
Photometric study of the old open cluster Be 32.
Kaluzny J., Mazur B.
<Acta Astron., 41, 167-190 (1991)>
=1991AcA....41..167K 1991AcA....41..167K
ADC_Keywords: Clusters, open ; Photometry, UBV ;
Abstract:
CCD photometry on the UBV and Washington systems, is presented for
Be32, a so far unstudied rich open cluster located in the Galactic
anticentre. Morphology of cluster and colour-magnitude diagram
indicates that it is an old object with age close to ages of NGC 188
and NGC 2243 (about 6Gyr on the scale of VandenBerg isochrones). The
cluster reddening is E(B-V)=0.16 and the estimated metallicity is
[Fe/H]=-0.37±0.05. The apparent distance modulus is between 12.8
and 13.1.
Description:
The observations were performed at Kitt Peak National Observatory
using the 0.9m telescope equipped with the CCD camera of TEK2 chip
(512x512pixels, 0.774arcsec/pix). The UBV photometry was obtained in
the night of 1989-12-04, and the Washington photometry on the night
of 1989-12-11.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
ubv.dat 79 922 UBV measurements in Be 32 (table 2 of paper)
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See also:
J/other/BASI/29.53 : UBVI photometry in Berkeley 32 (Richtler+, 2001)
J/PASJ/56/295 : BVIc photometry of old open clusters (Hasegawa+, 2004)
J/A+A/480/79 : Abundances of giants in 5 Galactic clusters (Bragaglia+ 2008)
J/A+A/496/441 : Radial velocities of Berkeley 32 stars (Randich+ 2009)
J/MNRAS/368/471 : Berkeley 32 BVI photometry and spectroscopy (D'Orazi+ 2006)
Byte-by-byte Description of file: ubv.dat
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Bytes Format Units Label Explanations
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3- 6 I4 --- Seq ID number (Cl* Berkeley 32 KM NNNN in Simbad)
10- 15 F6.2 pix Xpos Position along X (0.774arcsec/pix)
19- 24 F6.2 pix Ypos Position along Y (0.774arcsec/pix)
26- 31 F6.3 mag Vmag Johnson V magnitude
34- 38 F5.3 mag e_Vmag Mean error on Vmag
41 I1 --- o_Vmag Number of measurements in Vmag
43 I1 --- q_Vmag Quality for Vmag (1)
45- 50 F6.3 mag (B-V) Johnson (B-V) color index
53- 57 F5.3 mag e_(B-V) Mean error on (B-V)
60 I1 --- o_(B-V) Number of measurements in (B-V)
62 I1 --- q_(B-V) Quality for (B-V) (1)
64- 69 F6.3 mag (U-B) ?=-.999 Johnson (U-B) color index
72- 76 F5.3 mag e_(U-B) ?=-.999 Mean error on (U-B)
79 I1 --- o_(U-B) Number of measurements in (U-B)
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Note (1): A value of 1 indicates a suspect photometry (for instance an
unresolved pair of stars)
History:
From WEBDA (http://www.univie.ac.at/webda/ftp/ocl/be032/kaluzny.dat.Z)
(End) Francois Ochsenbein [CDS] 08-Aug-2010