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J/A+A/300/128 ESO 96-SC04 and ESO 92-SC18 photometry (Carraro+, 1995)
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CCD photometry of the faint old open clusters ESO 96-SC04 and ESO 92-SC18
Carraro G., Vallenari A., Ortolani S.
<Astron. Astrophys. 300, 128 (1995)>
=1995A&A...300..128C (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, open; Photometry
Keywords: open clusters: general: ESO 96-SC04 and ESO 92-SC18
Description:
We present deep CCD BV photometry in the central region of the faint
open clusters ESO 96-SC04 and ESO 92-SC18. The color magnitude
diagrams (CMD) here presented allows us to evaluate the clusters ages.
We found an age of 5.0x10^9^yr for ESO 92-SC18 and 0.7x10^9^yr for ESO
96-SC04 on the Padova isochrones scale. Estimates of the reddening are
given for both the target clusters and the distances of these objects
are substantially revised. We conclude that these clusters belong to
the old tail of the thin disk population, they are among the most
distant known open clusters from the Sun and lie near the solar circle
like the majority of the open clusters.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
eso92 32 634 ESO 92-SC18 photometry
eso96 32 1257 ESO 96-SC04 photometry
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Byte-by-byte Description of file: eso92, eso96
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq []+ Star identification (running) number
6- 12 F7.2 pix Xpos X coordinate
14- 20 F7.2 pix Ypos Y coordinate
22- 26 F5.2 mag Vmag V magnitude
28- 32 F5.2 mag B-V B-V colour
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Historical Notes:
The original files contained the magnitudes Vmag and B-V in
E-format with 6 significant digits; these were converted into
F5.2 values at CDS.
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(End) Patricia Bauer, Francois Ochsenbein [CDS] 21-Feb-1995