/ftp/cats/J/A+A/390/931



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J/A+A/390/931       Pismis 23 and Stephenson 2 VI photometry   (Ortolani+, 2002)
The following files can be converted to FITS (extension .fit .fgz or .fiZ)
	pismis23.dat stephen2.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+A/390/931
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drwxr-xr-x 19 cats archive 4096 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 May 12 09:58 [TAR file] -rw-r--r-- 1 cats archive 484 Aug 23 2002 .message -r--r--r-- 1 cats archive 3854 Aug 23 2002 ReadMe -rw-r--r-- 1 cats archive 213 Sep 19 2007 +footg5.gif -rw-r--r-- 1 cats archive 2047 Mar 5 2008 +footg8.gif -r--r--r-- 1 cats archive 82623 Jul 10 2002 pismis23.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 32776 Jul 10 2002 stephen2.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/A+A/390/931 VI photometry in Pismis 23 and Stephenson 2 (Ortolani+, 2002) ================================================================================ The very reddened open clusters Pismis 23 (Lynga 10) and Stephenson 2. Ortolani S., Bica E., Barbuy B., Momany Y. <Astron. Astrophys. 390, 931 (2002)> =2002A&A...390..931O ================================================================================ ADC_Keywords: Clusters, open ; Photometry Keywords: open clusters and associations: individual: Pismis 23, Stephenson 2 - stars: Hertzsprung-Russell (HR) and C-M diagrams Abstract: Pismis 23 and Stephenson 2 are two very reddened open clusters, projected close to the Galactic plane. We present VI and JH photometry for Pismis 23 and I and Gunn z for Stephenson 2. We derive a relatively old age of  700Myr for Pismis 23, with a reddening value of E(B-V)=1.73 and a distance d_sun_ 2.6kpc from the Sun. Stephenson 2 has a clump of red supergiants, indicating a young age of about 20Myr, somewhat younger and more distant (d_sun_ 6kpc) than recently reported in the literature. The age estimate for such a young object is crucial for the distance estimate. The high reddening of these two clusters relative to predictions from the diffuse interstellar medium at their distances is due to discrete intervening clouds. Objects: ----------------------------------------- RA (2000) DE Designation(s) ----------------------------------------- 16 23 58 -48 53 33 Pismis 23 18 39 20 -06 01 44 Stephenson 2 -----------------------------------------

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