J/A+A/401/531       Proper motions in NGC 7243                (Jilinski+, 2003)
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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      (SIMBAD/NED BibCode)
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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_{sun}_<M<522M_{sun}_, age
    t=2.510^8^yr, distance r=698pc and reddening E(B-V)=0.24 of the
    cluster NGC 7243 have been made.

Objects:
    -----------------------------------------
       RA  (2000)  DE    Designation(s)
    -----------------------------------------
    22 15.3     +49 53   NGC 7243
    -----------------------------------------

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 (hours) (2000.0)
  21- 22  I2    min       RAm       Right Ascension (minutes) (2000.0)
  24- 28  F5.2  s         RAs       Right Ascension (seconds) (2000.0)
      30  A1    ---       DE-       Declination sign (2000.0)
  31- 32  I2    deg       DEd       Declination (degrees) (2000.0)
  34- 35  I2    arcmin    DEm       Declination (minutes) (2000.0)
  37- 40  F4.1  arcsec    DEs       Declination (seconds) (2000.0)
  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  A2    %         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
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Note (1): Lengauer G.G., 1937, Bull. Obs. Pulkovo, XV, 3., 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.
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Acknowledgements: Evgueni Jilinski <jilinski@on.br>

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(End)                                        Patricia Bauer [CDS]    25-Mar-2003