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V/27 Proper Motions and UBV Photometry in h+{chi} Per (Muminov 1983)
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Proper Motions and UBV Photometry of Stars in the Region of the
h and {chi} Persei Clusters
Muminov M.
<CDS Bull. No. 24, p. 95 (1983)>
=1983BICDS..24...95M
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ADC_Keywords: Clusters, open ; Proper motions ; Photometry, UBV ;
Associations, stellar ; Regional catalog
Description:
Proper motions with an 80 year baseline have been determined relative
to reference stars with B=13.9mag. determined for 3086 stars brighter
than B=15.5mag. within an area of 50' radius, centered at RA=2h16.9m,
Dec=+57{deg}01' (1950.0). Two pairs of Tashkent normal astrograph
plates with a mean epoch difference of 80 years was used. Proper
motions were also measured for 1055 stars with 15.5 <= B <= 17.1 mag.
in two areas 14' in radius, centered on the h and {chi} Persei
clusters. Proper motions are also given for 1386 stars in an adjacent
area (RA=2h06.7m, Dec=+56{deg}57') for 1386 stars with a 38 year
baseline.
The mean errors of the proper motions are equal in right ascension and
declination. For the h and {chi} Perseus region, they are 0.0021"/a
and for the adjacent region, they are 0.0031"/a. The proper motions in
the adjacent area have been reduced to the system of those in the
cluster region using 214 stars in common.
UBV magnitudes of the stars were determined using plates taken with
the 80/120/240 Schmidt telescope of the Radioastrophysical Observatory
of the Academy of Sciences of the Latvian SSR and photoelectric
standards published by Johnson and Morgan (1955ApJ...122..429J) and
Widley (1964ApJS....8..439W). The number of measured plates and the
corresponding errors are given in the following table:
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FILE NAME # PLATES ERRORS (0.01mag)
V B U V B U
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data1.dat 2 3 2 6 5 6
data2.dat 1 2 - 8 6 -
adjarea.dat 2 2 2 6 6 6
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Cluster members were selected on the basis of their proper motion and
photometric criteria. The membership probability was calculated on the
assumption of a normal distribution of the proper motions around the
cluster proper motion.
Objects:
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RA (2000) DE Designation(s)
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02 19 00 +57 09.0 NGC 869 = C 0215+569 = h Per
02 22 24 +57 07.0 NGC 884 = C 0218+568 = {chi} Per
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
data1.dat 60 3086 Central region, B < 15.5 mag
data2.dat 58 1055 Central region, B > 15.5 mag
adjarea.dat 60 1363 Adjacent Area
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Byte-by-byte Description of file: data1.dat data2.dat adjarea.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID *Star identification number
7- 11 F5.1 mm Xpos *X-coordinate
13- 17 F5.1 mm Ypos *Y-coordinate
19- 23 F5.2 mag Vmag V magnitude
25- 29 F5.2 mag B-V B-V color index
31- 35 F5.2 mag U-B *? U-B color index
36- 40 I5 0.1mas/yr pmX Relative Annual proper motion along X
41- 45 I5 0.1mas/yr pmY Relative Annual proper motion along Y
49- 50 I2 % Prob *? Cluster membership probability
52 A1 --- Cl_mem *[*]Cluster membership
54- 60 A7 --- AGorMV *AGK3 or MV designation
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Note on ID:
The numbers are in the ranges:
1-3086 for the central part, B<15.5mag (file data1.dat)
4001-4550 for central region of h Per (file data2.dat)
4551-5055 for central region of {chi} Per (file data2.dat)
6001-7363 for adjacent region (file adjarea.dat)
Note on Xpos, Ypos:
Coordinates on the plates centered at:
02 16.9 +57 01 (1950) for data1.dat and data2.dat (central part)
02 06.7 +56 57 (1950) for adjarea.dat (adjacent area)
Note on U-B:
Blank for the faint part (data2.dat), no U plate available.
Note on Prob:
based on proper motions and photometry.
No probability for the adjacent zone (file adjarea.dat)
Note on Cl_mem:
* = member of the cluster.
Note on AGorMV:
Designation in AGK3 (Cat. <I/61>) for data1.dat and adjarea.dat,
or in Moffat and Vogt (1974VeBoc...2....1M) for data2.dat
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References:
Johnson H.L., Morgan W.W. 1955ApJ...122..429J
Moffat A.F.J., Vogt N., Veroeff. Astr. Inst. Univ. Bochum no 2 i
1974VeBoc...2....1M
Wildey R.L. (1964) ApJS 8, 439. 1964ApJS....8..439W
History:
* The catalogue was supplied to CDS by the author in 1980
* 08-Apr-1996: standardisation by Julie Anne Watko [SSDOO/ADC]
* 12-Oct-2000: ReadMe revisited at CDS
* 25-Jun-2001: ReadMe revisited at ADC
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(End) Julie Anne Watko [SSDOO/ADC] 08-Apr-1996