J/MNRAS/250/683 BVI CCD photometry of NGC 7510 (Sagar+, 1991)
CCD photometry of the distant young cluster NGC 7510.
Sagar R., Griffiths W.K.
<Mon. Not. R. Astron. Soc. 250, 683 (1991)>
=1991MNRAS.250..683S 1991MNRAS.250..683S
ADC_Keywords: Clusters, open ; Photometry, CCD
Abstract:
CCD observations in B, V and I passbands have been used to generate
deep V, (B-V) and V, (V-I) colour-magnitude diagrams for the open
cluster NGC 7510. The sample consists of 592 stars reaching down to
V=21mag. There appears to be non- uniform extinction over the face of
the cluster with the value of colour excess, E(B-V), ranging from 1.0
to 1.3mag. The law of interstellar extinction in the direction of the
cluster is found to be normal. A broad main sequence is clearly
visible in both colour-magnitude diagrams. From the bluest part of the
colour-magnitude diagrams, the true distance modulus to the cluster
has been estimated as 12.5±0.3mag and an upper limit of 10 Myr
has been assigned for the cluster age.
Description:
The observations were carried out in the B, V, and I photometric
bands, at the 2.3-m INT at La Palma.
The cluster regions were imaged only on the night of 1988 July 23-24.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 61 592 Relative positions and CCD BVI magnitudes of
stars measured in the field of NGC 7510
--------------------------------------------------------------------------------
See also:
J/A+AS/115/325 : UBV photometry in the cluster NGC 7510 (Barbon+, 1996)
J/A+A/443/157 : CCD photometry in 6 open clusters (Paunzen+, 2005)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- SG [1/592]+ Sequential number,
Cl* NGC 7510 SG NNN in Simbad
6- 11 F6.2 pix Xpos X position (1)
14- 19 F6.2 pix Ypos Y position (1)
22- 26 F5.2 mag Vmag V magnitude
29- 32 F4.2 mag B-V ? B-V colour index
35- 38 F4.2 mag V-I ? V-I colour index
41 I1 --- oB ? Number of observations in B band
44- 45 I2 --- oV ? Number of observations in V band
48 I1 --- oI ? Number of observations in I band
51- 61 A11 --- Names Other identifications (2)
--------------------------------------------------------------------------------
Note (1): North is to the right side and east is towards the top.
The scale is 0.74arcsec/pix.
Note (2): Other names are:
FS = Fenkart & Schroder (1985A&AS...59...83F 1985A&AS...59...83F)
Cl* NGC 7510 FS NNN in Simbad
HPE = Hoag et al. (1961PUSNO..17..343H 1961PUSNO..17..343H) in the photoelectric system
Cl* NGC 7510 HPG NN in Simbad
HPG = Hoag et al. (1961PUSNO..17..343H 1961PUSNO..17..343H) in the photographic system
NGC 7510 NN in Simbad
--------------------------------------------------------------------------------
History:
Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 27-Jun-2003