Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/2/2120/

The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:

1. Use the ADC Data Viewer Suite to visualize the data. [preview
2. Get the data files via anonymous FTP. (See Note.) [ftp


II/120   Phot and Spectrophot Investigation, South Gal Pole (Eriksson 1978)
================================================================================
A Photometric and Spectrophotometric Investigation in a Region at the South 
Galactic Pole
   Eriksson P-I.W. 
   <Uppsala Astron. Obs. Report 11 (1978)>
================================================================================
ADC_Keywords: Galactic pole, south; Photometry, UBV; Spectrophotometry 

Description:
   Photoelectric magnitudes and colors in the Johnson-Morgan UBV system
   for 477 stars in 6 square degrees near Kapteyn Selected Area 141
   (l=245, b=-86; 00 43 < RA < 01 11, -33.7 < Dec < -26.9, B1950.0)
   are given in the first data file.  The estimated rms accuracies
   are 0.02 (V), 0.03 (B-V), 0.07 (U-B) for stars in the magnitude
   range 15 to 16. Table 2 of the source reference gives
   the mean errors for intervals of magnitude.
   Photographic V magnitudes and B-V colors are given for 2835 stars
   to magnitude 17 (in the same region as above) in the second data
   file. The estimated rms accuracies are 0.05 (V) and 0.08 (B-V). The
   mean errors of the computed right ascensions and declinations are
   0.15s and 2", respectively.

File Summary:
--------------------------------------------------------------------------------
 FileName   Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe         80          .    This file
pe.dat         48        477    Photoelectric data
pg.dat         42       2835    Photographic data
--------------------------------------------------------------------------------

Byte-by-byte Description of file: pe.dat
--------------------------------------------------------------------------------
   Bytes  Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  4   I4     ---     SeqNumb  Sequential number
   6- 12   A7     ---     ID       Star number in the Henry Draper (HD)
                                   Catalogue or the Cordoba Dirchmusterung (CD)
  14- 15   I2     h       RAh      right ascension (hours) (B1950)
  17- 18   I2     min     RAm      right ascension (minutes)
  20- 21   I2     s       RAs      right ascension (seconds)
      23   A1     ---     DE-      Declination sign
  24- 25   I2     deg     DEd      Declination (degrees) (B1950)
  27- 30   F4.1   arcmin  DEm      Declination (minutes)
  32- 36   F5.2   mag     V        Photoelectric V magnitude.
  38- 42   F5.2   mag     B-V      Photoelectric B-V color
  44- 48   F5.2   mag     U-B      ? Photoelectic U-B color (value missing
                                   for SeqNumb = 215)
--------------------------------------------------------------------------------

Byte-by-byte Description of file: pg.dat
--------------------------------------------------------------------------------
   Bytes  Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1- 12   A12    ---     ID      *Star number in declination zones of 10',
                                   in the form XX.Y.zzzz:
                                     XX=degrees of southern declination.
                                      Y=tens digit of minutes of arc
                                    zzz=current number in the zone
  14- 15   I2     h       RAh      right ascension B1950 (hours)
  17- 18   I2     min     RAm      right ascension (minutes)
  20- 21   I2     s       RAs      right ascension (seconds)
      23   A1     ---     DE-      declination sign
  24- 25   I2     deg     DEd      declination B1950 (degrees)
  27- 30   F4.1   arcmin  DEm      declination (minutes)
  32- 36   F5.2   mag     V       *? Photographic V magnitude 
  38- 42   F5.2   mag     B-V     *? Photographic B-V color 
--------------------------------------------------------------------------------
Note on ID: 
   In the form XX.Y.zzzz:
      XX=degrees of southern declination.
       Y=tens digit of minutes of arc
     zzz=current number in the zone
Note on V, B-V:
  V and B-V are missing for star 30.2.204 -- the fields are blank.

Historical notes:
   The data were keypunched for Kavan U. Ratnatunga in 1982 June at
   the data center of the Australian National University, Canberra.
   They were supplied to the Astronomical Data Center/NASA Goddard
   Space Flight Center by K. Ratnatunga in 1986 April.

   Data format modified at the Astronomical Data Center (ADC)/NASA GSFC,
   1991 October...Wayne H. Warren Jr.

   Errors corrected at CDS consecutive signs +- in
   Table pe, col. U-B, line  215 (missing value)
   Table pg, col. B-V, line  805 (29.3.096) (two consecutive signs +-)
   Table pg, col. B-V, line 2637 (30.5.048) (two consecutive signs +-)
   Changes made at ADC:
   pe.dat: changed in record 155, 268, 335 positions in RA with RAs=60
   to RAm=RAm+1 and RAs=00.
================================================================================
(End) N.P.M. Kuin, C.-H. Joseph Lyu [NASA], Joseph Florsch [CDS] 09-JUN-1995

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