| Issue |
A&A
Volume 385, Number 2, April II 2002
|
|
|---|---|---|
| Page(s) | 471 - 478 | |
| Section | Galactic structure, stellar clusters, and populations | |
| DOI | https://doi.org/10.1051/0004-6361:20020165 | |
| Published online | 15 April 2002 | |
Photometry of dissolving star cluster candidates*,**
The cases of NGC 7036 and NGC 7772
Dipartimento di Astronomia, Università di Padova, Vicolo Osservatorio 2, 35122 Padova, Italy
Corresponding author: giovanni.carraro@unipd.it
Received:
23
November
2001
Accepted:
17
January
2002
We present CCD UBVI observations obtained in the field
of the two previously unstudied dissolving open cluster candidates NGC 7036
and NGC 7772. Our analysis suggests that both the objects are Open
Cluster Remnants (OCR). NGC 7036 is an open
cluster remnant with a core radius of about 3–4 arcmin.
We derive for the first time
estimates of its fundamental parameters. We identify 17 likely members
that define a group of stars at 1 kpc from the Sun,
with a low reddening 
,
and with an age of about 3–4 Gyr. As for NGC 7772, we identify 14 likely members, that define
a group of stars with a very low reddening (
),
are 1.5 Gyr old
and are located about 1.5 kpc from the Sun.
Key words: open clusters and associations: individual: NGC 7036, NGC 7772 - open clusters and associations: general
© ESO, 2002
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