J/A+A/401/531 Proper motions in NGC 7243 (Jilinski+, 2003)
Memberships and CM diagrams of the open cluster NGC 7243.
Jilinski E.G., Frolov V.N., Ananjevskaja J.K., Straume J., Drake N.A.
<Astron. Astrophys. 401, 531 (2003)>
=2003A&A...401..531J 2003A&A...401..531J
ADC_Keywords: Clusters, open ; Photometry, UBV ; Proper motions
Keywords: open clusters and associations: general -
open clusters and associations: individual: NGC 7243
Abstract:
The results of astrometric and photometric investigations of the open
cluster NGC 7243 are presented. Proper motions of 2165 stars with
root-mean-square error of 1.1mas/yr were obtained by means of PDS
scanning of astrometric plates covering the time interval of 97 years.
A total of 211 cluster members down to V=15.5mag have been identified.
V and B magnitudes have been determined for 2118 and 2110 stars
respectively. Estimations of mass 348M☉<M<522M☉, age
t=2.5108yr, distance r=698pc and reddening E(B-V)=0.24 of the
cluster NGC 7243 have been made.
Objects:
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RA (2000) DE Designation(s)
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22 15.3 +49 53 NGC 7243
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table8.dat 118 2618 Star positions, proper motions, BV photometry,
and membership probabilities
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See also:
J/A+A/376/441 : Absolute proper motions of 112 open clusters (Dias+, 2001)
J/A+AS/146/251 : Absolute proper motions of open clusters (Baumgardt+, 2000)
Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/2623] Sequence number of the star
6 A1 --- RefStar [*] * marks the reference stars
11- 13 I3 --- NL []? Identification from Lengauer (1)
18- 19 I2 h RAh Right Ascension Eq=J2000.0, Ep=1949.83 (3)
21- 22 I2 min RAm Right Ascension (minutes)
24- 28 F5.2 s RAs Right Ascension (seconds)
30 A1 --- DE- Declination sign Eq=J2000.0, Ep=1949.83 (3)
31- 32 I2 deg DEd Declination (degrees)
34- 35 I2 arcmin DEm Declination (minutes)
37- 40 F4.1 arcsec DEs Declination (seconds)
42- 43 I2 --- Np ? Number of astrometric plate pairs used
45- 49 F5.1 mas/yr pmX ? Relative proper motions in X
51- 53 F3.1 mas/yr e_pmX ? Standard error in pmX
55- 59 F5.1 mas/yr pmY ? Relative proper motions in Y
61- 63 F3.1 mas/yr e_pmY ? Standard error in pmY
65- 70 F6.3 mag Vmag ? V magnitude of a star
71 A1 --- u_Vmag [:] : marks doubtful photometric results
73- 78 F6.3 mag B-V ? (B-V) colour index
79 A1 --- u_B-V [:] : marks doubtful photometric results
81- 82 I2 % Prob ? Membership probability
84- 89 F6.2 mm Xpos Rectangular coordinate in millimeters (2)
91- 96 F6.2 mm Ypos Rectangular coordinate in millimeters (2)
98-118 A21 --- Notes Other names; variability; blending.
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Note (1): Lengauer G.G., 1937, Bull. Obs. Pulkovo, XV, 3., 1937IzPul.126...42L 1937IzPul.126...42L,
NGC 7243 NNN in Simbad
Note (2): The scale of the Pulkovo normal astrograph is 59.57"/mm.
The rectangular coordinates are relative the star N 898 in our catalogue.
Note (3): Plate D232, observed on 30 October 1949, was used as the
reference plate, as its epoch is the median of the others.
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Acknowledgements: Evgueni Jilinski
History:
* 25-Mar-2003: First version
* 22-Jun-2003: Several errors discovered and corrected in table8, in
interaction with the author (Evgueni Jilinski), concerning stars
348, 350, 563, 564, 565, 568, 715, 865, 961, 1021, 1280, 1562, 1563,
1637, 2014, 2500 (Seq numbers)
(End) Patricia Bauer [CDS] 25-Mar-2003