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J/A+AS/134/317      BR photometry of UGC 685                 (Hopp, 1999)
Distance, structure and bright stellar content of the dwarf irregular
galaxy UGC 685.
       Hopp U.
      <Astron. Astrophys. Suppl. Ser. 134, 317 (1999)>
      =1999A&AS..134..317H
ADC_Keywords: Galaxies, photometry ; Photometry, CCD

Keywords: galaxies - dwarfs; galaxies - structure; galaxies - distances


Abstract:
    B and R CCD images and J NICMOS3 frames taken with the Calar Alto 3.5m
    telescope of the dwarf irregular galaxy UGC 685 are presented. The
    brightest part of the stellar population is resolved in B and R, very
    few also in J. The stellar color-magnitude diagram is discussed. An
    estimate of the distance to UGC 685 of 5. 5Mpc is derived based on the
    brightest blue supergiant stars. Most of the resolved bright stars
    show colors in the range -0.1≤B-R≤+0.7.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table3.dat        48      171   Stars found in B and R on the UGC 685 frames


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

   Bytes Format Units   Label     Explanations

   1-  3  I3    ---     [H99]     Sequential number
   5-  9  F5.1  arcsec  Xpos      X position (1)
  12- 16  F5.1  arcsec  Ypos      Y position (1)
  19- 23  F5.2  mag     Bmag      B magnitude
  26- 29  F4.2  mag     e_Bmag    rms uncertainty on Bmag
  32- 36  F5.2  mag     Rmag      R magnitude
  39- 42  F4.2  mag     e_Rmag    rms uncertainty on Rmag
  44- 48  F5.2  mag     B-R       B-R colour index

Note (1): +x increases towards East and +y increases towards South



History: Prepared via OCR at CDS.

(End)                          James Marcout,  Patricia Bauer [CDS]  27-Aug-1999