J/A+AS/121/451 VI photometry of Berkeley 66 (Guarnieri+ 1997) ================================================================================ VI photometry of the galactic cluster Berkeley 66 Guarnieri M.D., Carraro G. =1997A&AS..121..451G (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Clusters, open ; Photometry Keywords: open clusters: Berkeley 66 - HR diagram Abstract: A colour magnitude diagram (CMD) extending to V=~19mag is given for 444 stars in the region of the galactic cluster Berkeley 66. The V and I photometry of a nearby field is also reported. This object appears very faint, highly contaminated by foreground stars and very reddened. The apparent distance modulus (m-M) and the colour excess E_V-I_ are guessed to be 17.5 and 1.1, respectively, with an uncertainty of at least 30%. Adopting these values the comparison of the CMD with theoretical isochrones from the Padova group provides an age around 1.0Gyr. Objects: ------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------ 03 04.3 +58 46 Berkeley 66 = C 0300+585 ------------------------------------------------ File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2 42 444 VI photometry -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2 -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- ID Identification number 5- 10 F6.3 mag Vmag V magnitude 12- 17 F6.3 mag Imag I magnitude 19- 24 F6.3 mag V-I V-I color index 26- 33 F8.3 pix Xpos X coordinate (1 pix = 0.47") 35- 42 F8.3 pix Ypos Y coordinate (1 pix = 0.47") -------------------------------------------------------------------------------- Table1: Journal of observations, 1.05m telescope, Pino Torinese, Torino (Italy) ------------------------------------------------------------------------------- Field Filter Exposure Seeing number (sec) (FWHM) ------------------------------------------------------------------------------- November 30, 1994 #1 I 60 1.41 #2 I 300 1.80 #3 I 180 1.35 #4 V 180 1.54 #5 V 120 1.54 #6 V 300 1.67 March 7, 1995 V 300 2.24 I 120 2.19 ------------------------------------------------------------------------------- Acknowledgements: Giovanni Carraro ================================================================================ (End) Patricia Bauer [CDS] 18-Jun-1996