J/BaltA/7/369 M67 CCD photometry (Boyle+, 1998)
CCD photometry of the M67 cluster in the Vilnius photometric system
Boyle R.P., Kazlauskas A., Vansevicius V., Straizys V., Vrba F.J.,
Sudzius J., Smriglio F.
<Baltic Astronomy, 7, 369 (1998)>
=1998BaltA...7..369B 1998BaltA...7..369B
ADC_Keywords: Photometry, CCD ; Clusters, open ; Photometry, Vilnius
Keywords: stars: fundamental parameters - clusters: individual: M 67
Abstract:
Seven-color CCD photometry in the Vilnius photometric system of 279
stars down to V=15mag in the open cluster M 67 area is obtained. 13
standard stars in the cluster are measured photoelectrically.
Photometric spectral types have been determined for all the stars. The
reddening of the cluster is found to be E(B-V)=0.045, the true
distance modulus is 9.38mag and the age is 4x109 years.
For a description of the Vilnius photometric system, see e.g.
GCPD/21
Objects:
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RA (2000) DE Designation(s)
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08 50 24 +11 49.0 M 67 = NGC 2682
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 95 13 Photoelectrically measured stars of M 67
table4.dat 80 279 Magnitudes and color indices of M 67 stars
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See also:
II/123 : UBV Photometry of Faint Stars (V>14.5) in M67 (Frolov+ 1986)
V/52 : Photometry and Proper Motions of stars in M67 (Frolov+ 1986)
J/A+AS/100/243 : Proper motions in M 67 (Zhao+ 1993)
J/AJ/106/181 : CCD photometry of open cluster M67 (Montgomery+ 1993)
J/AJ/112/628 : Deep Wide-Field Spectrophotometry of M67 (Fan+ 1996)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- F Fagerholm (1906ArMAF...2s...1F 1906ArMAF...2s...1F) number
(NGC 2682 NN in Simbad)
5- 8 I4 --- MMJ Montgomery, Marschall & Janes (1993,
Cat. J/AJ/106/181) number
(CL* NGC 2682 MMJ NNNN in Simbad)
10- 15 F6.3 mag Vmag V magnitude
17- 21 F5.3 mag e_Vmag rms uncertainty on Vmag
23- 27 F5.3 mag U-V U-V colour index
29- 33 F5.3 mag e_U-V rms uncertainty on U-V
35- 39 F5.3 mag P-V P-V colour index
41- 45 F5.3 mag e_P-V rms uncertainty on P-V
47- 51 F5.3 mag X-V X-V colour index
53- 57 F5.3 mag e_X-V rms uncertainty on X-V
59- 63 F5.3 mag Y-V Y-V colour index
65- 69 F5.3 mag e_Y-V rms uncertainty on Y-V
71- 75 F5.3 mag Z-V Z-V colour index
77- 81 F5.3 mag e_Z-V rms uncertainty on Z-V
83- 87 F5.3 mag V-S V-S colour index
89- 93 F5.3 mag e_V-S rms uncertainty on V-S
95 I1 --- Nmeas Number of independent measurements
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Table 3: Color equations between the CCD and the standard systems.
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Magnitude U P X Y Z V S
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bi 0.078 -0.073 -0.097 0.054 0.036 0.004 0.090
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- S Sanders (1977A&AS...27...89S 1977A&AS...27...89S) number
5 A1 --- n_S [*B] *: non-members, B: spectroscopic binaries
7- 10 I4 --- MMJ ? Montgomery et al. (1993, Cat. J/AJ/106/181)
number (CL* NGC 2682 MMJ NNNN in Simbad)
12- 14 I3 --- F ? Fagerholm (1906ArMAF...2s...1F 1906ArMAF...2s...1F) number
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 25 F4.1 s RAs Right ascension (J2000)
27 A1 --- DE- Declination sign (J2000)
28- 29 I2 deg DEd Declination sign (J2000)
31- 32 I2 arcmin DEm Declination sign (J2000)
34- 35 I2 arcsec DEs Declination sign (J2000)
37- 41 F5.2 mag Vmag V magnitude
43- 46 F4.2 mag U-V U-V colour index
47 A1 --- u_U-V Uncertainty flag on U-V
49- 52 F4.2 mag P-V P-V colour index
53 A1 --- u_P-V Uncertainty flag on P-V
55- 58 F4.2 mag X-V X-V colour index
60- 63 F4.2 mag Y-V Y-V colour index
65- 68 F4.2 mag Z-V Z-V colour index
70- 73 F4.2 mag V-S V-S colour index
75- 80 A6 --- SpType Spectral type
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History: Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 21-Jun-1999