| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 124, Number 1, July 1997
|
|
|---|---|---|
| Page(s) | 13 - 21 | |
| DOI | https://doi.org/10.1051/aas:1997176 | |
| Published online | 15 July 1997 | |
UBVRI imaging photometry of the open cluster Cr 272 *,**
1
Observatorio Astronómico de La Plata, Paseo del Bosque s/n, 1900 La Plata and PROFOEG-CONICET, Argentina
2
University of Toronto Southern Observatory, Las Campanas, Casilla 601, Chile
Received:
10
January
1996
Accepted:
31
October
1996
We present an extensive CCD UBVRI (Cousins system) photometric survey
in the region of the open cluster Collinder 272. Our data analysis confirms
that the cluster is situated in the outer border of Becker's inner arm -II,
at a distance 
pc and probably related to the neighbor cluster
Hogg 16. There is no highly evolved stars in
the cluster upper sequence and our age estimate based
upon isochrones from models computed with mass loss and overshooting, and
other methods, indicates a mean age of
13 Myr.
A statistical method based on the removal of field stars
was used to determine the luminosity function and the initial mass function
of the cluster. The cluster initial mass function is characterized by
a slope 
.
Key words: cluster: open: individual: Cr 272 / stars: luminosity function, mass function / HR diagram
© European Southern Observatory (ESO), 1997