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V/52 Photometry and Proper Motions in M67 (Frolov+ 1986)
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Photometry and Proper Motions of stars in the open cluster M67
Frolov V.N., Ananyevskaya J.K.
<Astr. Tsrik., 1432, 4 (1986)>
=1986ATsir1432....4F
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ADC_Keywords: Clusters, open ; Proper motions ; Photometry, UBV
Description:
Relative proper motions were determined for 1068 stars with limiting
magnitude b=16.5 and located within an area 130'*130' centered at
alpha=8h 47.7m,delta=+12 deg.00' and l=215.6deg.,b=+31.2deg.(1950.0).
Five plate pairs taken with the Pulkovo normal astrograph with mean
epoch difference of 62 years were used. The proper motions have a mean
error of 0''.0020 per year and were measured relative to reference
stars with 13.5<b<14.5.
Photographic UBV magnitudes were determined using the photoelectric
standards of Johnson, Sandage (1955ApJ...121..616J) and Eggen, Sandage
(1964ApJ...140..130E). Three plates in each colour taken with the
Schmidt telescope of the Radioastrophysical Observatory of the Latvian
SSR were measured. In addition a plate taken with the Pulkovo 26inch
telescope was used to determine v-magnitudes.
The cluster members were selected on the basis of proper motion
(vector point diagram) and photometric (V/B-V and U-B/B-V) criteria.
Objects:
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RA (2000) DE Designation(s)
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08 50.4 +11 49 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
data.dat 128 1068 The photometry and proper motions in M67
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See also:
II/123 : UBV Photometry of Faint Stars (V>14.5) 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)
J/other/BaltA/7.369 : M67 CCD photometry (Boyle+, 1998)
Byte-by-byte Description of file: data.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- Seq Running Number
6 A1 --- Rem [*] '*' for members located within the
investigated area
7- 11 I5 --- FR Star number - the Authors
12- 16 I5 --- Sand ? Star number - Sanders (1977A&AS...27...89S)
17- 20 I4 --- F ? Star number - Fagerholm (1906)
22- 30 F9.4 mm Xpos *X position
31- 39 F9.4 mm Ypos *Y position
42- 46 F5.2 mag V(pg) ? Photographic magnitude
47 A1 --- u_V(pg) Uncertainty colon on V(pg)
49- 53 F5.2 mag BV(pg) ? B-V (photographic)
54 A1 --- u_BV(pg) Uncertainty colon on BV(pg)
56- 60 F5.2 mag UB(pg) ? U-B (photographic)
61 A1 --- u_UB(pg) Uncertainty colon on UB(pg)
63- 67 F5.2 mag Vmag ? Photoelectric V magnitude
69- 73 F5.2 mag B-V ? B-V (photoelectric)
75- 79 F5.2 mag U-B ? U-B (photoelectric)
81- 88 F8.4 arcsec/yr pmX ? Relative proper motion (X)
89- 96 F8.4 arcsec/yr pmY ? Relative proper motion (Y)
97-104 F8.4 arcsec/yr pmX(S) ? Relative pm by Sanders (1977A&AS...27...89S)
105-112 F8.4 arcsec/yr pmY(S) ? Relative pm by Sanders (1977A&AS...27...89S)
115-117 I3 % Pr(FR) Membership probability
119-121 I3 % Pr(S) ? Membership probability by Sanders
(1977A&AS...27...89S)
123-128 F6.2 mm R Radius vector
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Note on Xpos, Ypos:
the origin is at alpha=23h 54.2min, delta=60deg 57' (1950.0)
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References:
Eggen, O. J. and Sandage, A. R. 1964ApJ...140..130E
Fagerholm, E., Inaugural Diss. Uppsala, 1906.
Frolov, V. N. 1984, Isv. Pulkovo, 202, 105 (1984IzPul.202..105F)
Frolov, V. N. and Ananyevskaya, J. K. 1986, unpublished documentation
received with the catalog from the CDS.
Johnson, H. L. and Sandage, A. R. 1955ApJ...121..616J
Sanders, W. L. 1977A&AS...27...89S
History Notes:
* March 1993: Misaligned records were corrected in lines 80, 110, 388, 851
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(End) [CDS] 28-Apr-2000