ACDS V10.0 - Detailed Description of I/221

ACDS V10.0 - Mon Feb 03 17:08:20 CET 2025

| # Detailed Description of I/221 : The Magellanic Catalogue of Stars - MACS (Tucholke+ 1996) |

Note : this is the description file of the original catalog. This HTML page corresponds well to the original description, but some minor changes in the format may have been introduced in the FITS output files in order to allow for arithmetic operations on quantities such as coordinates and times. h:m:s and d:m:s units are normally converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the units; the value given in the HTML files supersedes the value indicated in the ReadMe file for this catalogue.

    I/221               The Magellanic Catalogue of Stars - MACS (Tucholke+ 1996)
    ================================================================================
    The Magellanic Catalogue of Stars - MACS
         Tucholke H.-J., de Boer K.S., Seitter W.C.
        <Astron. Astrophys. Suppl. Ser., 119, 91-98 (1996)>
        <The Messenger 81, 20 (1995)>
        =1996A&AS..119...91T =1995Msngr..81...20D
    ================================================================================
    ADC_Keywords: Magellanic Clouds ; Positional data

    Description:
        The Magellanic Catalogue of Stars (MACS) is based on scans of ESO
        Schmidt plates and contains about 244,000 stars covering large areas
        around the LMC and the SMC. The limiting magnitude is B<16.5m and the
        positional accuracy is better than 0.5" for 99% of the stars. The
        stars of this catalogue were screened interactively to ascertain that
        they are undisturbed by close neighbours.

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × lmc.dat           52   175779   The Large Magellanic Cloud
    × smc.dat           52    67782   The Small Magellanic Cloud

    Byte-by-byte Description of file:  lmc.dat  smc.dat

       Bytes Format  Units   Label    Explanations

       1- 12  A12    ---     MACS     Designation
      14- 15  I2     h       RAh      Right Ascension J2000 , Epoch 1989.0 (hours)
      17- 18  I2     min     RAm      Right Ascension J2000 (minutes)
      20- 25  F6.3   s       RAs      Right Ascension J2000 (seconds)
          27  A1     ---     DE-      Declination J2000 (sign)
      28- 29  I2     deg     DEd      Declination J2000 , Epoch 1989.0 (degrees)
      31- 32  I2     arcmin  DEm      Declination J2000 (minutes)
      34- 38  F5.2   arcsec  DEs      Declination J2000 (seconds)
          40  I1     ---     Npos     Number of positions used
      42- 46  F5.2   mag     Mag      []?=99.00 Instrumental Magnitude
                                            (to be used only in a relative sense)
          48  I1     ---     PosFlag  [0/1] Position Flag   (0: ok,
                                            1: internal error larger than 0.5")
          50  I1     ---     MagFlag  [0/1] Megnitude Flag  (0: ok,
                                            1: bad photometry or possible variable)
          52  I1     ---  BochumFlag *[0] Bochum Flag

    Note on BochumFlag: 1 if in Bochum catalog of astrophysical information
        on bright LMC stars) (yet empty)

    Author's address:
        Hans-Joachim Tucholke    tucholke@astro.uni-bonn.de
    ================================================================================
    (End)            Hans-Joachim Tucholke [Univ. Bonn]                  20-Nov-1995