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J/A+A/385/471       UBVI photometry of NGC 7036 and NGC 7772    (Carraro+, 2002)
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Photometry of dissolving star cluster candidates.
The cases of NGC 7036 and NGC 7772.
    Carraro G.
      <Astron. Astrophys. 385, 471 (2002)>
      =2002A&A...385..471C      (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, open ; Photometry, UBVRI ; Photometry, CCD
Keywords: open clusters and associations: individual: NGC 7036, NGC 7772 -
          open clusters and associations: general

Abstract:
    We present CCD UBVI observations obtained in the field of the two
    previously unstudied dissolving open cluster candidates NGC 7036 and
    NGC 7772. Our analysis suggests that both the objects are Open Cluster
    Remnants (OCR). NGC 7036 is an open cluster remnant with a core radius
    of about 3-4 arcmin. We derive for the first time estimates of its
    fundamental parameters. We identify 17 likely members that define a
    group of stars at 1kpc from the Sun, with a low reddening E(B-V)~0.1,
    and with an age of about 3-4Gyr. As for NGC 7772, we identify 14
    likely members, that define a group of stars with a very low
    reddening (E(B-V)~0.03), are 1.5Gyr old and are located about 1.5kpc
    from the Sun.

Objects:
    --------------------------------------------------------
       RA   (2000)   DE        GLON   GLAT   Designation(s)
    --------------------------------------------------------
    21 10 02.0   +15 31 06    64.55  -21.44  NGC 7036
    23 51 46.0   +16 14 48   102.74  -44.27  NGC 7772
    --------------------------------------------------------

File Summary:
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 FileName      Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe            80        .   This file
ngc7036.dat       85      331   Photometry of NGC 7036
ngc7772.dat       85      137   Photometry of NGC 7772
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Byte-by-byte Description of file: ngc7036.dat ngc7772.dat
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   Bytes Format Units   Label     Explanations
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   1-  3  I3    ---     Seq       Sequential number
   5- 12  F8.3  pix     Xpos      X coordinates (1)
  14- 21  F8.3  pix     Ypos      Y coordinates (1)
  23- 29  F7.4  mag     Vmag      ?=99.9999 V band magnitude
  31- 37  F7.4  mag   e_Vmag      ?=99.9990 error in Vmag
  39- 45  F7.4  mag     B-V       ?=99.9999 (B-V) color index
  47- 53  F7.4  mag   e_B-V       ?=99.9990 error in (B-V)
  55- 61  F7.4  mag     U-B       ?=99.9999 (U-B) color index
  63- 69  F7.4  mag   e_U-B       ?=99.9990 error in (U-B)
  71- 77  F7.4  mag     V-I       ?=99.9999 (V-I) color index
  79- 85  F7.4  mag   e_V-I       ?=99.9990 error in (V-I)
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Note (1): The center is in (500.0,500.0) pixel. The scale is 0.473"/pix.
          East is toward negative X, South toward negative Y.
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Acknowledgements: Giovanni Carraro <giovanni.carraro@unipd.it>

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(End)                                        Patricia Bauer [CDS]    26-Mar-2002