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J/PAZh/25/115     A study of the open cluster NGC 6811        (Glushkova+, 1999)
A study of the open cluster NGC 6811.
    Glushkova E.V., Batyrshinova V.M., Ibragimov M.A.
   <Pis'ma Astron. Zh. 25, 115 (1999)>
   =1999PAZh...25..115G
   =1999AstL...25...86G
ADC_Keywords: Clusters, open ; Radial velocities ; Photometry, UBVRI


Abstract:
    191 individual measurements of radial velocities made with
    CORAVEL-type spectrometer are presented for 60 stars in the large
    region of NGC 6811 open cluster. Photoelectric UBVR magnitudes are
    given for 117 stars - members of the cluster by proper motions.
    Spectral classification of these stars is taken from Straizys and
    Kazlauskas (1993BaltA...2....1S).
Objects:
    -------------------------------------------------
       RA  (2000)  DE       Designation(s)
    -------------------------------------------------
     19 38 12   +46 34.0    NGC 6811
    -------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        40      191   Catalog of the radial velocities
table3.dat        89      117   Catalog of the UBVR magnitudes


Byte-by-byte Description of file: table1.dat

   Bytes Format    Units      Label      Explanations

   1-  2  I2       ---        NFig1      Number of star in Fig. 1
   6- 10  I5       ---        BAR        ? Barkhatova number of star (1)
  14- 24  F11.3    d          JD         [2449156/2450700] Julian date
  28- 34  F7.2     km/s       RV         Heliocentric radial velocity
  37- 40  F4.2     km/s       e_RV       Uncertainty in RV

Note (1): Barkhatova et al., 1978SvA....22...31B



Byte-by-byte Description of file: table3.dat

   Bytes Format    Units      Label      Explanations

   1-  3  I3       ---        SAN        ? Sanders number of star (1)
   5-  9  I5       ---        BAR        ? Barkhatova number of star (2)
      10  A1       ---        n_BAR      (*) means that star number is
                                              taken from Fig.1
  14- 19  F6.3     mag        Vmag       V magnitude
      20  A1       ---        u_Vmag     Uncertainty in Vmag
  22- 26  F5.3     mag        e_Vmag     ? Standard error in V
  28- 33  F6.3     mag        U-B        U-B color index
      34  A1       ---        u_U-B      Uncertainty in U-B
  36- 40  F5.3     mag        e_U-B      ? Standard error  in U-B
  43- 47  F5.3     mag        B-V        B-V color index
      48  A1       ---        u_B-V      Uncertainty in B-V
  50- 54  F5.3     mag        e_B-V      ? Standard error in B-V
  57- 61  F5.3     mag        V-R        V-R color index
      62  A1       ---        u_V-R      Uncertainty in V-R
  64- 68  F5.3     mag        e_V-R      ? Standard error in V-R
      71  I1       ---        o_Vmag     Number of measurements
  74- 82  A9       ---        SpType     Spectral classification (3)
  87- 89  A3       ---        Mem        Membership of star in the cluster (4)

Note (1): Sanders, W.L., 1971A&A....15..368S
           (Cl* NGC 6811 SAN NNN in Simbad)
Note (2): Barkhatova et al., 1978SvA....22...31B

Note (3): Straizys & Kazlauskas, 1993BaltA...2....1S

Note (4): Membership:
      nm: Field star
     nm?: Possible field star

(End)                                     Veta Avedisova [INASAN]    18-May-2000