Astronomical Data Center

ADCADC/CDS Standard Document for Catalog:
/catalogs/2/2021A/

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/21A        Narrow-Band Photometry of Late-Type Stars (Haeggkvist+ 1970)
================================================================================
Narrow-Band Photometry of Late-Type Stars
    Haeggkvist L., Oja T.
    <Astron. Astrophys. Suppl. Ser. 1, 199 (1970)>
    =1970A&AS....1..199H
================================================================================
ADC_Keywords: Photometry, narrow-band ; Stars, late-type

Description:
    The catalog is a compilation of photoelectric photometry obtained as
    part of a program investigating the distribution of stars and stellar
    matter perpendicular to the galactic plane. Compared to the
    publication, the "catalog" file does not include the position, the
    spectral type, the source of the UBV photometry, and neither the
    number of measurements in the narrow-band filters.

    The narrow-band filters are:
    -----------------------------------------------
    m(4508)   centered at 450.8nm, half-width=5.0nm
    m(4269)   centered at 426.9nm, half-width=4.3nm
    m(4176)   centered at 417.6nm, half-width=4.0nm
    -----------------------------------------------
    ge = m(4269) - m(4508) measures the break at the G-band
    ce = m(4176) - m(4269) measures the CN absorption.

File Summary:
--------------------------------------------------------------------------------
 FileName   Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe         80          .    This file
catalog.dat    54        629    The catalogue of photometric data
--------------------------------------------------------------------------------

Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
   Bytes Format  Units   Label    Explanations
--------------------------------------------------------------------------------
   1-  8  A8     ---     HR/BD    Designation in Bright Star Catalogue <V/50>
                                    or Bonner Durchmusterung <I/122>
   9- 13  F5.2   mag     Vmag     []? Visual magnitude in Johnson system
  15- 20  F6.3   mag     B-V      []? Colour in Johnson system
  22- 26  F5.2   mag     U-B      []? Colour in Johnson system
  28- 33  F6.3   mag     m(4508)  Magnitude in narrow-band filter (1)
  35- 39  F5.3   mag     ge       = m(4269) - m(4508) (1)
  41- 46  F6.3   mag     ce       = m(4176) - m(4269) (1)
  48- 50  A3     ---     Rem      [V?DR ] Remark (2)
  52- 54  I3     ---     Seq      Sequential number
--------------------------------------------------------------------------------
Note (1): see above in the Decription the filter definition.
Note (2): remarks are as follows:
   V=variable;
   D=double star, magnitude difference less than 4mag
   R=individual remark as follows:
     HR 1457  : The individual values of Vmag indicate variability
     HR 1845  : CE Tau
     HR 2742  : BZ Cam
     HR 4057/8: The individual values of Vmag indicate variability
     HR 5490  : W Boo
     HR 5505/6: Spectral type A2V+K0II-II
     HR 5512  : The 3 measurements of m(4508) have an amplitude of 0.4mag
     HR 5589  : RR UMi
     HR 6406/7: Spectral type M5II + (G5III?+F2?)
     HR 7157  : R Lyr
     HR 7735  : V695 Cyg
     HR 7956  : T Cyg
     HR 8383  : VV Cep
--------------------------------------------------------------------------------

Historical Notes:
  * Tape received at CDS before 1976
  * 25-Sep-1995: First documentation by Gail L. Schneider [SSDOO/ADC]
  * 12-Oct-1995: Reformatted the "HR/BD" column at CDS
================================================================================
(End)                    Joseph Florsch,  Francois Ochsenbein [CDS]  12-Oct-1995

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