A deep VI CCD photometric study of the neglected galactic star cluster NGC 6631

dc.contributor.author	Sagar, R.
dc.contributor.author	Naidu, B. N.
dc.contributor.author	Mohan, V.
dc.date.accessioned	2009-08-10T09:38:09Z
dc.date.available	2009-08-10T09:38:09Z
dc.date.issued	2001
dc.identifier.citation	This article downloded from ADS Free Online Journal	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/242
dc.description.abstract	We present the VI CCD photometric observations of about 5500 stars up to a limiting magnitude of V~ 20 in an area of ~16'⨯16' around the cluster NGC 6631. The cluster parameters determined for the first time by fitting the theoretical isochrones in the V, (V – I) diagram of the cluster stars are E(V – I) = 0.60±0.05 mag, distance = 2.6± 0.5 kpc, age = 400±100 Myr and metallicity, Z= 0.05. The cluster diameter determined from the radial density profile is 4.8± 0.5 pc. The mass function of the cluster has a slope of 2.1± 0.5.	en_US
dc.language.iso	en_US	en_US
dc.relation.ispartofseries	basi29-519
dc.subject	Photometry, Cluster NGC 6631, Colour-Magnitude diagram	en_US
dc.title	A deep VI CCD photometric study of the neglected galactic star cluster NGC 6631	en_US
dc.type	Article	en_US