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J/A+A/388/179       BVI photometry of two open clusters          (Piatti+, 2002)
Two highly reddened young open clusters located beyond the Sagittarius arm
    Piatti A.E., Claria J.J.
   <Astron. Astrophys. 388, 179 (2002)>
   =2002A&A...388..179P
ADC_Keywords: Clusters, open ; Photometry, UBVRI

Keywords: open clusters and associations: individual: Pismis 23, BH 222 -
          open clusters and associations: general - techniques: photometric

Abstract:
    We present the results of CCD BVI Johnson-Cousins photometry down to
    V∼19mag in the regions of the unstudied stellar groups Pismis 23 and
    BH 222, both projected close to the direction towards the Galactic
    centre. We measured V magnitude and B-V and V-I colours for a total of
    928 stars in fields of about 4'x4'.
Objects:
    -----------------------------------------
      RA   (2000)   DE     Designation(s)
    -----------------------------------------
    16 23 58    -48 55 33  Cl Pismis 23
    17 18 47    -38 17 22  Cl VDBH 222
    -----------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        60      627   Magnitudes and colours of stars in the field of
                               Pismis 23
table3.dat        60      301   Magnitudes and colours of stars in the field of
                               BH 222


See also:
   J/A+AS/107/39  : IC 2714 UBV photometry (Claria+ 1994)
   J/ApJS/116/263 : VI photometry of open clusters (Piatti+ 1998)
   J/A+AS/127/423 : VI photometry of Westerlund 1 and 2 (Piatti+ 1998)
   J/A+AS/128/131 : UBV photometry of NGC 2323 (Claria+ 1998)
   J/A+A/360/529  : BVI photometry of 4 young open clusters (Piatti+, 2000)
   J/A+A/370/931  : BVI photometry of 4 open clusters (Piatti+, 2001)
   J/A+A/375/30   : Radial velocities in open clusters (Mermilliod+, 2001)
   J/A+A/379/453  : BVI photometry of 5 open cluster candidates (Piatti+, 2001)


Byte-by-byte Description of file: table2.dat table3.dat

   Bytes Format Units   Label     Explanations

   1-  3  I3    ---     Seq       Star number
   5- 11  F7.3  pix     Xpos      X coordinates (1)
  13- 19  F7.3  pix     Ypos      Y coordinates (1)
  21- 26  F6.3  mag     Vmag      V magnitude
  28- 32  F5.3  mag     e_Vmag    rms uncertainty on Vmag
  34- 39  F6.3  mag     B-V       B-V colour index
  41- 45  F5.3  mag     e_B-V     rms uncertainty on B-V
  47- 52  F6.3  mag     V-I       V-I colour index
  54- 58  F5.3  mag     e_V-I     rms uncertainty on V-I
      60  I1    ---     o_Vmag    Number of measurements

Note (1): North is increasing "X" coords and the East decreasing "Y" coords.
          The origin of the coordinate system is (0,0) and
          the pizel size is 0.45 arcsec/pix.


Acknowledgements:
    Andres Piatti 
(End)                                          Patricia Bauer [CDS]  09-Apr-2002