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V/36B       Supplement to the Bright Star Catalogue     (Hoffleit+ 1983)
================================================================================
A Supplement to the Bright Star Catalogue
    Hoffleit E.D., Saladyga M., Wlasuk P.
    <Yale University Obs. (1983)>
    =1983bscs.book.....H
================================================================================
ADC_Keywords: Combined data ; Stars, bright

Description:
    The catalog is an extension of the BSC4 (Hoffleit 1982; see catalog
    <V/50>) and contains compiled data on stars for which photoelectric
    determinations are given as 7.10V or brighter and that are not already
    included in the latter catalog. The data included in the supplement
    are basically the same as those in the BSC4 itself, and the format of
    the machine version is very similar. Notable differences are that the
    NAME column has been omitted, since very few supplement stars have
    Bayer or Flamsteed designations, and has been replaced with the SAO
    number. Also, the parallax field includes only data determined from
    trigonometric methods; all dynamical parallax data have been relegated
    to the REMARKS. Position-angle data are given in the main table for
    double stars, whereas they were contained, if reported, only in the
    REMARKS file of the BSC4. Remarks for supplement stars are given in a
    separate file of the machine version and are present for 49% of the
    stars.
    The introductory file "intro.doc" contains the text given in the
    introduction to the published catalog except that the figures are, of
    course, not included.
    Data included in the catalog "bsc4s.dat" are HD number; DM number; SAO
    number; double-star code or identification; variable-star
    identification; right ascension (B1900) declination, right ascension
    (B2000) declination; galactic coordinates; V magnitude; B-V, U-B, R-I
    colors; spectral type; annual proper motions; parallax; radial
    velocity (km/s): and projected rotational velocity v sin i (km/s).
    Data included for multiple stars are magnitude difference, separation
    (arcsec), position angle (PA) of components, component identifications
    (A, B, ...), and number of components (N). A remarks flag is included
    as a pointer to a remarks file.
    The third file "remarks.dat" contains the actual remarks for stars
    flagged in the data file.

File Summary:
--------------------------------------------------------------------------------
 FileName    Lrecl    Records    Explanations
--------------------------------------------------------------------------------
ReadMe          80          .    This file
intro.doc       80        412    Introduction to the catalogue
bsc4s.dat      212       2611    The Supplement to the Bright Star Catalogue
remarks.dat     68       3578   *Remarks to stars in the catalogue
--------------------------------------------------------------------------------
Note to remarks.dat: the text includes special symbols
    (e.g. Greek letters) which coding is explained at the end
    of the file "intro.doc" .
--------------------------------------------------------------------------------

See also:
    V/50 : Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)

Byte-by-byte Description of file: bsc4s.dat
--------------------------------------------------------------------------------
   Bytes Format Units     Label     Explanations
--------------------------------------------------------------------------------
   1-  6  I6    ---       HD        [1/252421]? Number in the
                                      Henry Draper Catalogue <III/135>
   7-  8  A2    ---       m_HD     *HD suffix.  May be component identifications
   9- 18  A10   ---       DM        Durchmusterung (BD, CD, CPD) designation
  20- 25  I6    ---       SAO       [1/258997]? Catalog number in SAO <I/131>
      27  A1    ---       Iflag     [I] "I" if the star occurs in the
                                       NASA Merged Infrared Catalogue <II/71>
  28- 35  A8    ---       ADS      *Double or multiple star identifications
  37- 47  A11   ---       Vname    *Variable-star designations
  49- 50  I2    h         RAh       Right Ascension 1900 (hours)
  52- 53  I2    min       RAm       Right Ascension 1900 (minutes)
  55- 58  F4.1  s         RAs       Right Ascension 1900 (seconds)
      60  A1    ---       DE-       Declination 1900 (sign)
  61- 62  I2    deg       DEd       Declination 1900 (degrees)
  64- 65  I2    arcmin    DEm       Declination 1900 (minutes)
  67- 68  I2    arcsec    DEs       Declination 1900 (seconds)
  70- 71  I2    h         RAh2000   Right Ascension 2000 (hours)
  73- 74  I2    min       RAm2000   Right Ascension 2000 (minutes)
  76- 79  F4.1  s         RAs2000   Right Ascension 2000 (seconds)
      81  A1    ---       DE-2000   Declination 2000 (sign)
  82- 83  I2    deg       DEd2000   Declination 2000 (degrees)
  85- 86  I2    arcmin    DEm2000   Declination 2000 (minutes)
  88- 89  I2    arcsec    DEs2000   Declination 2000 (seconds)
  91- 96  F6.2  deg       GLON      Galactic longitude.
  98-103  F6.2  deg       GLAT      Galactic latitude.  Sign always in
 105-108  F4.2  mag       Vmag     *V magnitude on UBV system.
     109  A1    ---       u_Vmag    Uncertainty flag (:) on Vmag
 110-114  F5.2  mag       B-V       ? B-V colour index
 116-120  F5.2  mag       U-B       ? U-B colour index
 122-126  F5.2  mag       R-I       ? colour on system indicated by n_R-I
     127  A1    ---       n_R-I    *[:EC] Code for R-I system
 128-147  A20   ---       SpType   *Spectral type.
 149-154  F6.3  arcsec/yr pmRA      ? Annual proper motion in right ascension.
 156-161  F6.3  arcsec/yr pmDE      ? Annual proper motion in declination.
 163-167  F5.3  arcsec    Plx       ? Trigonometric parallax.  Dynamical
                                       parallaxes are given in the remarks file.
 169-172  I4    km/s      RVel      ?  Radial velocity (see codes in n_RVel)
                                          field).
 173-177  A5    ---       n_RVel   *[V?SDB12O:.5 ]   Radial-velocity code
 179-180  A2    ---       l_vsini   [<>= ] Limit indicators for vsini
 181-183  I3    km/s      vsini     ? Projected rotational velocity v.sin i.
     184  A1    ---       u_vsini   Colon (:) for uncertain v sin i (no
                                          occurrences at present).
 185-188  F4.1  mag       Dmag     *?  Differential magnitude difference
     189  A1    ---       u_Dmag   *[:V] Differential magnitude code.
 191-195  F5.1  arcsec    Sep       ?  Separation of the components "Comp"
     196  A1    ---       n_Sep    *[a:] Separation code
 199-202  A4    deg       PAcomp   *Position angle for the components "Comp"
     203  A1    ---       u_PAcomp  PA code (: for uncertainty).
 205-209  A5    ---       Comp     *Identification of components.
 210-211  I2    ---       Ncomp     ? Number of components assigned to
                                      multiple systems.
     212  A1    ---       Remark    [*] An asterisk indicates that further
                                       information can be found in the remarks
                                       file.
--------------------------------------------------------------------------------
Note on m_HD:  used for multiple systems, or /X when more than a single
     HD star is included, e.g. HD 17245/6.
     NOTE: m_HD is "S" for the 3 stars not in HD catalogue, for which
           the SAO number is listed in column HD; those stars are
           SAO 250043 (CP-60  980), SAO 179278 (BD-20 3283) and
           SAO 252421 (CP-61 3926)
Note on ADS: spectroscopic and eclipsing binaries are not considered here.
     The field is uniform with the catalog codes in byte 28,
     ADS numbers in bytes 29-33, and multiple-star letter designations
     for components of a system which the HD number represents
     in bytes 34-35. Other designations include:
     W  Worley (1978; see Worley 1982) update of the IDS (Jeffers et al. 1963)
        (see catalog <I/237>)
     C  Couteau 1978 (see catalog <I/209>)
     D  Duplicity discovered by occultation
Note on Vname: these designations include:
    (a) constellation designations from the General Catalogue of Variable
        Stars (see 4th Edition as Catalog <II/139>)
    (b) numbers (alone) from the New Catalogue of Suspected Variable
        (see latest version in Catalog <II/140>)
    (c) Var and Var? for unnamed variables and suspected unconfirmed
        variables not included in the General and Suspected catalogs.
        Can apply to the HD number and/or a close companion.
    Note: HD 139216 = Tau4 Ser is recorded as "@t|4 Ser" where the character
          following the t is a vertical bar.
Note on Vmag: Magnitudes of variables and/or binaries may be reported to
        0.1 mag only.
Note on n_R-I: this code may be a colon indicating a larger uncertainty, or
    (blank) - on Johnson system;
        E   - mainly from Eggen, on Kron system;
        C   - from Cousins, close to Kron system
        (the Johnson and Kron filters have different passbands and
         may not be used interchangeably).
Note on SpType:
     If the complete modern (MK) classification is too long for the data
     field, it is given in the remarks file and an asterisk (*) occurs in
     this data field.
     Mt. Wilson luminosity classes are given as lower case letters in bytes
     128-129.
     The "W" in Wolf-Rayet types is in byte 129 with the C or N in the
     following byte (130).
     In general, the temperature class (O, B, A, ..., S, C) occurs in byte
     130 and the temperature subclass in byte 131 (intermediate sub-classes
     extend to 132-133 and other characters can be in bytes 131, ...).
     Characters normally appearing as lower case in standard notation, e.g.
     p, e, Si, Mn, Hg, Iab, are coded in lower case.
     A greek delta appearing for HD 189337 is coded as "@d".
Note on n_RVel: the peculiarities are:
            V, V? - variable or suspected variable velocity;
     SB, SB1, SB2 - spectroscopic binaries, single or double lined spectra;
                O - orbital data available.
     One star (HD 2268) has a velocity with one decimal (0.5) stored there.
Note on Dmag: magnitude difference between two components of a double,
     or between the two brightest components of a multiple system.
Note on u_Dmag: this code takes the values
     V indicates variable magnitude difference,
     : uncertainty indicator (:); no occurrences at present.
Note on n_Sep:
     "a" occurs if the separation refers to the semimajor axis .
     The colon (:) indicates, as usual, a large uncertainty.
Note on PAcomp: this field may contain
     "ORB"  to indicate an available orbit; hence, no PA.
     "SP"   to indicate south preceding,
     "SF"   to indicate south following, and
     "S"    to indicate south.
Note on Comp: Identification of components represented in
     bytes 185-188 and 191-195.
     The character "O" indicates an occultation binary.
--------------------------------------------------------------------------------

Byte-by-byte Description of file: remarks.dat
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1-  6  I6    ---     HD        [1/250043] HD (SAO in 3 cases) number,
                                             as in file bcs4s.dat
   7-  8  A2    ---     m_HD      HD suffix (or "S" for SAO),
                                             as in file bcs4s.dat
  10- 13  A4    ---     Category *Remark category abbreviation
      15  A1    ---     ---       [(] Left parenthesis
      16  A1    ---     Cont      [a-s] Continuation letter
      17  A1    ---     ---       [)] Right parenthesis
  19- 68  A50   ---     Text      Remarks in free text form.
--------------------------------------------------------------------------------
Note on Category: the categories are:
   C:   magnitudes, colors, color excesses;
   D:   double and multiple stars, including astrometric and those discovered
        by occultations and speckle interferometry.  Orbital data given,
        including magnitudes and spectral types of major components,
        orbital periods, semimajor axes, etc.;
   Dyn: dynamical parallaxes;
   G:   membership in clusters, associations, groups and apparent association
   N:   star names and identifications;
   R:   stellar radii or diameters;
        with nebulosity (R associations).  No attempt made to resolve
        conflicting assignments in different sources: various alternatives
        are included;
   RV:  radial and rotational velocities;
   S:   spectra;
   SB:  spectroscopic binaries, mostly orbital data:
        period of revolution,
        K = half amplitude of radial velocity,
        K$1, k$2 = semi-amplitude in RV for each of the components
           of SB2 system,
        V$0 = mean radial velocity of the system,
        msin3i = mass function in Solar masses,
        asini  = projected semimajor axis in Gm (10^6^km) ;
   Var: variability, magnitude ranges, spectrum or magnetic field
        variability or other characteristics;
   M:   miscellaneous notes.
--------------------------------------------------------------------------------
Acknowledgements:
    Appreciation is expressed to Dr. E. Dorrit Hoffleit and her colleagues
    for preparing and sending the magnetic tape of the catalog. Dr.
    Hoffleit kindly communicated additional corrections to the catalog and
    reviewed this document in preprint form before final printing.

    A large part of this ReadMe file was generated from the "Documentation
    for the machine-readable version of 'A Supplement to the Bright Star
    Catalogue'" by Wayne H. Warren Jr. made in February 1984
    (document NSSDC/WDC-A-R&S 84-04)

References:
  Aitken, R. G. 1932, New General Catalogue of Double Stars within 120
    degrees of the North Pole, Carnegie Institution of Washington Pub. 417
    (Washington: Carnegie Institution of Washington).
  Cannon, A. J. and Pickering, E. C. 1918-1924, The Henry Draper
    Catalogue, Ann.  Astron. Obs. Harvard College 91-99. (Cat. <III/135>)
  Couteau, P. 1978, Circ. Inf. No 75 (Meudon: IAU Commission des Etoiles
    Doubles). See also catalog <I/209>
  Hoffleit, D. (with the collaboration of Jaschek, C.) 1982, The BRIGHT
    STAR CATALOGUE, 4th revised edition (New Haven: Yale University
    Observatory ; see catalog <V/50>).
  Hoffleit, D., Saladyga, M. and Wlasuk, P. 1984, A Supplement to the
    Bright Star Catalogue (New Haven: Yale University Observatory).
  Jeffers, H. M., van den Bos, W. H. and Greeby, F. M. 1963, Index
    Catalogue of Visual Double Stars, Publ. Lick Obs. 21.
  Kholopov, P. N., Kukarkina, N. P. and Perova, N. B. 1978, 63rd
    Name-List of Variable Stars, Inf. Bull. Variable Stars, No. 1414.
    (See catalog <II/139>)
  Kholopov, P. N., Kukarkina, N. P. and Perova, N. B. 1979, 64th
    Name-List of Variable Stars, Inf. Bull. Variable Stars, No. 1581.
    (See catalog <II/139>)
  Kholopov, P. N., Samus', N. N., Kukarkina, N. P., Medvedeva, G. I. and
    Perova, N. B. 1981, 65th Name-List of Variable Stars,
    Inf. Bull. Variable Stars, No. 1921.
    (See catalog <II/139>)
  Kholopov, P. N., Samus', N. N., Kukarkina, N. P., Medvedeva, G. I. and
    Perova, N. B. 1981, 66th Name-List of Variable Stars,
    Inf. Bull. Variable Stars, No. 2042.
    (See catalog <II/139>)
  Kukarkin, B. V., Kholopov, P. N., Artiukhina, N. M., Fedorovich, V.
    P., Frolov, M. S., Goranskij, V. P., Gorynya, N. A., Karitskaya, E. A.,
    Kireeva, N. N., Kukarkina, N. P., Kurochkin, N. E., Medvedeva, G. I.,
    Perova, N. B., Ponamareva, G. A., Samus', N. N. and Shugarov, S. Yu.
    1982, New Catalogue of Suspected Variable Stars (Moscow: Publishing
    Office <<Nauka>>). (See catalog <II/140>)
  Kukarkin, B. V., Kholopov, P. N., Efremov, Yu. N., Kukarkina, N. P.,
    Kurochkin, N. E., Medvedeva, G. I., Perova, N. B., Pskovsky, Yu. P.,
    Fedorovich, V. P. and Frolov, M. S. 1971, First Supplement to the
    Third Edition of the General Catalogue of Variable Stars (Moscow:
    Publishing House of the Academy of Sciences of the U.S.S.R.).
    (See catalog <II/139>)
  Kukarkin, B. V., Kholopov, P. N., Efremov, Yu. N., Kukarkina, N. P.,
    Kurochkin, N. E., Medvedeva, G. I., Perova, N. B., Pskovsky, Yu. P.,
    Fedorovich, V. P. and Frolov, M. S. 1974, Second Supplement to the
    Third Edition of the General Catalogue of Variable Stars (Moscow:
    Publishing House of the Academy of Sciences of the U.S.S.R.).
    (See catalog <II/139>)
  Kukarkin, B. V., Kholopov, P. N., Fedorovich, V. P., Kireyeva, N. N.,
    Kukarkina, N. P., Medvedeva, G. I. and Perova, N. B. 1977, 62nd
    Name-List of Variable Stars, Inf. Bull. Variable Stars, No. 1248.
    (See catalog <II/139>)
  Kukarkin, B. V., Kholopov, P. N., Kukarkina, N. P. Kurochkin, N. E.,
    Medvedeva, G. I., Perova. N. B., Pskovsky, Yu. P., Fedorovich, V. P.
    and Frolov, M. S. 1976, Third Supplement to the Third Edition of the
    General Catalogue of Variable Stars (Moscow: Publishing House of the
    Academy of Sciences of the U.S.S.R.). (See catalog <II/139>)
  Kukarkin, B. V., Kholopov, P.  N., Pskovsky, Yu. P., Efremov, Yu. N.,
    Kukarkina, N. P., Kurochkin, N. E., Medvedeva, G. I., Perova, N. B.,
    Fedorovich, V. P. and Frolov, M. S. 1969-70, General Catalogue of
    Variable Stars, 3rd edition (Moscow: Publishing House of the Academy
    of Sciences of the U.S.S.R.) (See catalog <II/139>)
  Schmitz, M., Brown, L. W., Mead, J. M. and Nagy, T. A. 1978, Merged
    Infrared Catalogue, NASA TM-79683. (Catalog <II/71>)
  Smithsonian Astrophysical Observatory Staff 1966, Star Catalog.
    Positions and Proper Motions of 258,997 Stars for the Epoch and
    Equinox of 1950.0, Pub. of the Smithsonian Institution of
    Washington, D.C. No. 4652 (Washington: Carnegie Institution
    of Washington; see catalog <I/131>)
  Worley, C. E. 1982, in IAU Colloquium No. 64, Automated Data Retrieval
    in Astronomy, Ed. C. Jaschek and W. Heintz (Dordrecht: D. Reidel
    Publishing Company), p. 257. (see catalog <I/237>)
================================================================================
(End)                                     Francois Ochsenbein [CDS]  08-Apr-1997

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