J/A+A/451/901 Proper motion and BV photometry in Trumpler 2 (Frolov+, 2006)
Proper motions and CCD-photometry of stars in the region of the
open cluster Trumpler 2.
Frolov V.N., Ananjevskaja J.K., Jilinski E.G., Gorshanov D.L.,
Bronnikova N.M.
<Astron. Astrophys. 451, 901 (2006)>
=2006A&A...451..901F 2006A&A...451..901F
ADC_Keywords: Clusters, open ; Photometry, photographic ; Proper motions
Keywords: open clusters and associations: individual: Trumpler 2
Abstract:
The results of a complex study of the galactic open cluster Trumpler 2
are presented. In order to obtain the proper motions, the positions of
approximately 3000 stars up to the limit magnitude B∼16.25mag in the
area 80'x80' around the cluster were measured on 6 plates
with a maximal epoch difference of 63-years. The root-mean error of
the relative proper motions is 4.2mas/yr. The catalogue of BV
magnitudes of all the stars in the investigated area was compiled. The
selection of the cluster members within the region of R<16 arcmin from
the center of the cluster was made. Altogether, 148 stars were
considered to be cluster members by both astrometrical and
photometrical criteria. We present the estimated age (8.91E+07) and
physical parameters of the cluster and append the catalogues of the
proper motions and of the photometry of the stars.
Description:
All of the plates were scanned by means of the automated measuring
complex "Fantasy" of the Pulkovo observatory. The description of the
complex was presented in Frolov et al. (2002, Cat. J/A+A/396/125).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 91 2362 Catalogue of the astrometrical results
table3a.dat 47 3397 Catalogue of all available BV photometry of
stars in the Trumpler 2 area
table3b.dat 34 153 The additional authors' BV photometry of faint
stars in the Trumpler 2 area
table5.dat 74 313 Catalogue of stars in the central part of Tr 2
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See also:
I/252 : The USNO-A2.0 Catalogue (Monet+ 1998)
J/A+A/396/125 : Proper motions and BV photometry in NGC 1513 (Frolov+, 2002)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/2362] Number of the star in our study
6- 18 A13 --- USNO-A2 Number of the star according to USNO-A2.0
I/252 catalogue
20- 27 F8.4 arcmin Xpos ? Rectangular coordinate X (G1)
29- 36 F8.4 arcmin Ypos ? Rectangular coordinate Y (G1)
38- 42 F5.2 arcmin Rad ? Radius-vector
45- 50 F6.2 mas/yr pmX ? Proper motion along X axis
52- 55 F4.2 mas/yr e_pmX ? rms uncertainty on pmX
58- 63 F6.2 mas/yr pmY ? Y proper motion along Y axis
65- 68 F4.2 mas/yr e_pmY ? rms uncertainty on pmY
70- 74 F5.2 mag Bmag B magnitude resulting from the
"Fantasy" measurements
76 I1 --- Npl Number of plates used
78- 80 A3 --- Notes Notes (2)
82- 91 A10 --- OName Other name
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Note (2): Notes as follows:
bl = marks blends
bad = bad measurement
abs = absence of the star on the plates
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Byte-by-byte Description of file: table3a.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/2362] Number of the star in our study
6- 10 F5.2 arcmin Rad ? Radius-vector
12- 13 I2 --- In [1/10]? Specific number corresponding to
photometry data
15- 19 F5.2 mag Bmag ? B magnitude
21- 25 F5.2 mag Vmag ? V magnitude
27- 31 F5.2 mag B-V ? B-V colour index
34- 47 A14 --- Blend Blends
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Byte-by-byte Description of file: table3b.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [3001/3202] Number of the star in our study
6- 10 F5.2 mag BmagCCD CCD photometry in the B band
12- 15 F4.2 mag e_BmagCCD ? rms uncertainty on BmagCCD
17- 18 I2 --- o_BmagCCD Number of observation in B band
20- 25 F6.3 mag VmagCCD CCD photometry in the V band
27- 31 F5.3 mag e_VmagCCD ? rms uncertainty on VmagCCD
33- 34 I2 --- o_VmagCCD Number of observation in V band
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/2362] Number of the star in our study
6 A1 --- Memb [m] Sign of membership
8- 15 F8.4 arcmin Xpos Rectangular coordinate X (G1)
17- 24 F8.4 arcmin Ypos Rectangular coordinate Y (G1)
26- 30 F5.2 arcmin Rad Radius-vector
32- 37 F6.2 arcmin pmX Proper motion along X axis
39- 42 F4.2 arcmin e_pmX rms uncertainty on pmX
44- 49 F6.2 arcmin pmY Proper motion along Y axis
51- 54 F4.2 arcmin e_pmY rms uncertainty on pmY
56 I1 --- Npl Number of plates used
58- 59 I2 % PMemb Membership probability
61- 62 I2 --- In [1/10] Specific number corresponding to
photometry data
64- 68 F5.2 mag Vmag V magnitude
70- 74 F5.2 mag B-V B-V colour index
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Global notes:
Note (G1): Rectangular coordinates relative to the star N 1090
02:37:00.834+55:54:41.16 (J2000)
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Acknowledgements: Vladimir N. Frolov, vfrol(at)gao.spb.ru
History:
* 05-May-2006: Original version
* 01-Jun-2006: Sequential number 523 restored (instead of 820) in table2
(End) Patricia Vannier [CDS] 05-May-2006