J/AN/326/3 BVRI photometry of 4 open clusters (Ahumada+, 2005)
CCD photometry of the open clusters NGC 2627, NGC 5617, Pismis 7,
and Ruprecht 75.
Ahumada J.A.
<Astron. Nachr., 326, 3-18 (2005)>
=2005AN....326....3A 2005AN....326....3A
ADC_Keywords: Clusters, open ; Photometry, CCD ; Photometry, UBVRI ;
Photometry, Cousins
Keywords: open clusters and associations: general -
open clusters and associations: individual: NGC 2627, NGC 5617,
Pismis 7, Ruprecht 75
Description:
CCD photometry of the galactic open clusters NGC 2627, NGC 5617,
Pismis 7, and Ruprecht 75 is presented. For the first cluster, BV data
are given, for the others the data are BV(RI)_c. The star coordinates
are relative to the corresponding cluster center.
The observations were carried out from the Complejo Astronomico El
Leoncito (Argentina), and from Las Campanas (Chile). Each cluster was
observed on two different nights; when possible, measurements for a
given star were averaged.
NGC 2627 observations were carried out from CASLEO on the nights of
7-8 January 1997 and 23-24 April 2001, in the BV filters.
NGC 5617 data in the BVRI filters were obtained at Las Campanas on the
nights 10-11 and 11-12 April 1996, and at CASLEO on the 1-2 April 2001
night.
Pismis 7 was observed from Campanas on the 13-14 and 15-16 April 1996
nights (BVRI).
Ruprecht 75 data in the BVRI filters were obtained at Las Campanas on
the 12-13 April 1996 night, and at CASLEO on the 20-21 April 2001 night.
Objects:
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RA (2000) DE Designation(s) (File)
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08 37 12 -29 56.9 NGC 2627 = ESO 431- 20 (table8.dat)
14 29 48 -60 43.1 NGC 5617 = C 1426-605 (table9.dat)
08 41 06 -38 42.4 Pismis 7 = C 0839-385 (table10.dat)
09 21 54 -56 18.7 Ruprecht 75 = C 0920-560 (table11.dat)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table8.dat 78 622 CCD BV photometry of NGC 2627
table9.dat 78 1176 CCD BVRI photometry of NGC 5617
table10.dat 78 192 CCD BVRI photometry of Pismis 7
table11.dat 78 1399 CCD BVRI photometry of Ruprecht 75
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See also:
J/A+AS/109/375 : Blue stragglers in open clusters (Ahumada+, 1995)
J/other/RMxAA/39.39 : CCD Photometry of NGC 2658, 2849, 3247 (Ahumada, 2003)
Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Star number in the cluster (1)
6- 12 F7.2 pix Xpos X coordinate (2)
14- 20 F7.2 pix Ypos Y coordinate (2)
22- 27 F6.3 mag Vmag V magnitude
29- 34 F6.3 mag e_Vmag Error of V magnitude
36- 41 F6.3 mag B-V B-V colour index
43- 48 F6.3 mag e_B-V Error of B-V index
50- 55 F6.3 mag V-Ic ? V-Ic colour index
57- 62 F6.3 mag e_V-Ic ? Error of V-Ic index
64- 69 F6.3 mag V-Rc ? V-Rc colour index
71- 76 F6.3 mag e_V-Rc ? Error of V-Rc index
78 I1 --- N Number of observations
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Note (1): Nomenclature note:
table8 : Cl* NGC 2627 AHU NNNN in Simbad
table9 : Cl* NGC 5617 AHU NNNN in Simbad
table10: Cl* Pismis 7 AHU NNNN in Simbad
table11: Cl* Ruprecht 75 AHU NNNN in Simbad
Note (2): Coordinates of the centers:
NGC 2627: 08:37.2-29:56.9 (J2000.0)
NGC 5617: 14:29.8-60:43.1 (J2000.0)
Pismis 7: 08:41.1-38:42.4 (J2000.0)
Ruprecht 75: 09:21.9-56:18.7 (J2000.0)
East is to the left, North to the top.
The scale is 0.813arcsec/pix (NGC 2627, NGC 5617, Ruprecht 75), and
0.45arcsec/pix (Pismis 7).
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Acknowledgements: Javier Ahumada, javier(at)oac.uncor.edu
(End) Patricia Vannier [CDS] 13-Jun-2006