J/A+AS/114/537 BVI photometric study of NGC 2453 (Mallik+, 1995)
A deep BVI photometric study of the open cluster NGC 2453
Mallik D.C.V., Sagar R., Pati A.K.
<Astron. Astrophys. Suppl. Ser. 114, 537 (1995)>
=1995A&AS..114..537M 1995A&AS..114..537M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open; Photometry
Keywords: open clusters: individual: NGC 2453 - stars: evolution -
planetary nebulae: individual: NGC 2452 - HR diagram
Description:
CCD observations of the open cluster NGC 2453 have been carried out in
B, V and I passbands. A total of 356 stars have been observed in a
field of about 4'x6' of the sky centred on the cluster.
Colour-magnitude diagrams in V, B-V and V, V-I have been generated
down to V=20 and for the first time, the unevolved part of the cluster
main sequence has been observed. The mean true distance modulus
derived from these diagrams is 13.mag 85±0.2 yielding a distance of
5.9±0.2kpc. A mean age of 25Myr has been derived for the cluster by
fitting isochrones. The distance of approximately 6kpc puts the
cluster much beyond the planetary nebula NGC 2452 whose largest
estimated distance to date is about 3.5kpc. The two are not physically
associated.
Objects concerned:
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RA (2000) DE Name(s)
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07 47.8 -27 14 NGC 2453 = C 0745-271
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3 50 356 BVI photometry of 356 stars in the
Region of NGC 2453
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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2- 4 I3 --- Star Star number
6- 11 F6.2 pix Xpos X coordinate
13- 19 F7.2 pix Ypos Y coordinate
21- 25 F5.2 mag Vmag V magnitude
28- 31 F4.2 mag B-V []? B-V colour index
34- 37 F4.2 mag V-I V-I colour index
39- 48 A10 --- CrossId Cross identification of stars (1)
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Note (1): G: Gathier 1984
MF: Moffat and Fitzgerald 1974
S: Seggewiss 1971
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References:
Gathier R. 1984, "A study of planetary nebulae", Ph. D. Thesis, University
of Groeningen, Chapter 3 Appendix, p. 58
Moffat A.F.J., Fitzegerald M.P. =1974A&AS...18...19M 1974A&AS...18...19M
Seggewiss W. 1971 Veroeff. Astron. Inst. Bonn, 83. (1971VeBon..83...19S 1971VeBon..83...19S)
(End) Simona Mei [CDS] 26-Jul-1995