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. =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 Xpix X coordinates (1) 13- 19 F7.3 pix Ypix 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