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J/A+AS/114/281      NGC 7762: a moderate age open cluster         (Patat+, 1995)
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NGC 7762: a forgotten moderate age open cluster
     Patat F., Carraro G.
    <Astron. Astrophys. Suppl. Ser. 114, 281 (1995)>
    =1995A&AS..114..281P      (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, open; Photometry, CCD
Keywords: open clusters: NGC 7762 - HR diagram

Description:
    We report CCD B and V photometry for the central region of the old
    open cluster NGC 7762. The cluster appears very loose and occupies a
    large sky area. The Colour Magnitude Diagram (CMD) shows a distinct
    Main Sequence (MS) down to V=~16.5, and a couple of evolved stars. The
    bottom of the sequence is characterized by a large spread, much
    greater than the expected broadness due to photometric errors, and
    probably related to low mass stars evaporation. The analysis here
    carried out allows us to conclude that NGC 7762 in an intermediate age
    cluster about 1.8Gyr old. The comparison with theoretical isochrones
    from the Padova group constrains colour excess and apparent distance
    modulus in the range 0.85-0.90 and 12.00-12.20, respectively. The
    distance to the Sun comes out to be 800 pc, somewhat lower than
    Chincarini's (1966MmSAI..37..423C) estimate.

File Summary:
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  FileName      Lrecl  Records   Explanations
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ReadMe             80        .   This file
table2             44      142   Photometry
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Byte-by-byte Description of file: table2
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   Bytes Format  Units   Label    Explanations
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   1-  3  I3     ---     ID       Star identification number
   6-  7  I2     ---     C66      []? Chincarini numbering for common stars
  10- 15  F6.2   pix     Xpos     X coordinate
  18- 23  F6.2   pix     Ypos     Y coordinate
  26- 30  F5.2   mag     Vmag     V magnitude
  33- 37  F5.2   mag     B-V      B-V colour index
  40- 44  F5.3   mag     e_Vmag   Error on V magnitude
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(End)                                             Simona Mei [CDS]   05-Jul-1995