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

The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) Hoffleit D., Warren Jr W.H. <Astronomical Data Center, NSSDC/ADC (1991)> =1964BS....C......0H
ADC_Keywords: Combined data ; Stars, bright Description (prepared by Wayne H. Warren Jr., 1991 June 28): The Bright Star Catalogue (BSC) is widely used as a source of basic astronomical and astrophysical data for stars brighter than magnitude 6.5. The catalog contains the identifications of included stars in several other widely-used catalogs, double- and multiple-star identifications, indication of variability and variable-star identifiers, equatorial positions for B1900.0 and J2000.0, galactic coordinates, UBVRI photoelectric photometric data when they exist, spectral types on the Morgan-Keenan (MK) classification system, proper motions (J2000.0), parallax, radial- and rotational-velocity data, and multiple-star information (number of components, separation, and magnitude differences) for known nonsingle stars. In addition to the data file, there is an extensive remarks file that gives more detailed information on individual entries. This information includes star names, colors, spectra, variability details, binary characteristics, radial and rotational velocities for companion stars, duplicity information, dynamical parallaxes, stellar dimensions (radii and diameters), polarization, and membership in stellar groups and clusters. The existence of remarks is flagged in the main data file. The BSC contains 9110 objects, of which 9096 are stars (14 objects catalogued in the original compilation of 1908 are novae or extragalactic objects that have been retained to preserve the numbering, but most of their data are omitted), while the remarks section is slightly larger than the main catalog. The present edition of the compilation includes many new data and the remarks section has been enlarged considerably. This preliminary version of the fifth edition of the Bright Star Catalogue supersedes the published and machine-readable versions of Hoffleit (1982, Yale University Observatory) and is intended for use until the final version of this edition is completed. It has been made available only for dissemination on the Astronomical Data Center CD ROM. The brief format description applies to the preliminary version of the catalog only. The format will change for the final edition. Author's addresses: Dorrit Hoffleit Department of Astronomy Yale University Wayne H. Warren Jr. ST Systems Corporation National Space Science Data Center NASA Goddard Space Flight Center File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file catalog 197 9110 The main part of the Catalogue notes 132 9190 Remarks
See also: V/36 : Supplement to the Bright Star Catalogue (Hoffleit+ 1983) Byte-by-byte Description of file: catalog
Bytes Format Units Label Explanations
1- 4 I4 --- HR [1/9110]+ Harvard Revised Number = Bright Star Number 5- 14 A10 --- Name Name, generally Bayer and/or Flamsteed name 15- 25 A11 --- DM Durchmusterung Identification (zone in bytes 17-19) 26- 31 I6 --- HD [1/225300]? Henry Draper Catalog Number 32- 37 I6 --- SAO [1/258997]? SAO Catalog Number 38- 41 I4 --- FK5 ? FK5 star Number 42 A1 --- IRflag [I] I if infrared source 43 A1 --- r_IRflag *[ ':] Coded reference for infrared source 44 A1 --- Multiple *[AWDIRS] Double or multiple-star code 45- 49 A5 --- ADS Aitken's Double Star Catalog (ADS) designation 50- 51 A2 --- ADScomp ADS number components 52- 60 A9 --- VarID Variable star identification 61- 62 I2 h RAh1900 ?Hours RA, equinox B1900, epoch 1900.0 (1) 63- 64 I2 min RAm1900 ?Minutes RA, equinox B1900, epoch 1900.0 (1) 65- 68 F4.1 s RAs1900 ?Seconds RA, equinox B1900, epoch 1900.0 (1) 69 A1 --- DE-1900 ?Sign Dec, equinox B1900, epoch 1900.0 (1) 70- 71 I2 deg DEd1900 ?Degrees Dec, equinox B1900, epoch 1900.0 (1) 72- 73 I2 arcmin DEm1900 ?Minutes Dec, equinox B1900, epoch 1900.0 (1) 74- 75 I2 arcsec DEs1900 ?Seconds Dec, equinox B1900, epoch 1900.0 (1) 76- 77 I2 h RAh ?Hours RA, equinox J2000, epoch 2000.0 (1) 78- 79 I2 min RAm ?Minutes RA, equinox J2000, epoch 2000.0 (1) 80- 83 F4.1 s RAs ?Seconds RA, equinox J2000, epoch 2000.0 (1) 84 A1 --- DE- ?Sign Dec, equinox J2000, epoch 2000.0 (1) 85- 86 I2 deg DEd ?Degrees Dec, equinox J2000, epoch 2000.0 (1) 87- 88 I2 arcmin DEm ?Minutes Dec, equinox J2000, epoch 2000.0 (1) 89- 90 I2 arcsec DEs ?Seconds Dec, equinox J2000, epoch 2000.0 (1) 91- 96 F6.2 deg GLON ?Galactic longitude (1) 97-102 F6.2 deg GLAT ?Galactic latitude (1) 103-107 F5.2 mag Vmag ?Visual magnitude (1) 108 A1 --- n_Vmag *[ HR] Visual magnitude code 109 A1 --- u_Vmag [ :?] Uncertainty flag on V 110-114 F5.2 mag B-V ? B-V color in the UBV system 115 A1 --- u_B-V [ :?] Uncertainty flag on B-V 116-120 F5.2 mag U-B ? U-B color in the UBV system 121 A1 --- u_U-B [ :?] Uncertainty flag on U-B 122-126 F5.2 mag R-I ? R-I in system specified by n_R-I 127 A1 --- n_R-I [CE:?D] Code for R-I system (Cousin, Eggen) 128-147 A20 --- SpType Spectral type 148 A1 --- n_SpType [evt] Spectral type code 149-154 F6.3 arcsec/yr pmRA *?Annual proper motion in RA J2000, FK5 system 155-160 F6.3 arcsec/yr pmDE ?Annual proper motion in Dec J2000, FK5 system 161 A1 --- n_Parallax [D] D indicates a dynamical parallax, otherwise a trigonometric parallax 162-166 F5.3 arcsec Parallax ? Trigonometric parallax (unless n_Parallax) 167-170 I4 km/s RadVel ? Heliocentric Radial Velocity 171-174 A4 --- n_RadVel *[V?SB123O ] Radial velocity comments 175-176 A2 --- l_RotVel [≤> ] Rotational velocity limit characters 177-179 I3 km/s RotVel ? Rotational velocity, v sin i 180 A1 --- u_RotVel [ :v] uncertainty and variability flag on RotVel 181-184 F4.1 mag Dmag ? Magnitude difference of double, or brightest multiple 185-190 F6.1 arcsec Sep ? Separation of components in Dmag if occultation binary. 191-194 A4 --- MultID Identifications of components in Dmag 195-196 I2 --- MultCnt ? Number of components assigned to a multiple 197 A1 --- NoteFlag [*] a star indicates that there is a note (see file notes)
Note (1): These fields are all blanks for stars removed from the Bright Star Catalogue (see notes). Note on r_IRflag: Blank if from NASA merged Infrared Catalogue, Schmitz et al., 1978; ' if from Engles et al. 1982 : if uncertain identification Note on Multiple: A = Astrometric binary D = Duplicity discovered by occultation; I = Innes, Southern Double Star Catalogue (1927) R = Rossiter, Michigan Publ. 9, 1955 S = Duplicity discovered by speckle interferometry. W = Worley (1978) update of the IDS; Note on n_Vmag: blank = V on UBV Johnson system; R = HR magnitudes reduced to the UBV system; H = original HR magnitude. Note on pmRA: As usually assumed, the proper motion in RA is the projected motion (cos(DE).d(RA)/dt), i.e. the total proper motion is sqrt(pmRA2+pmDE2) Note on n_RadVel: V = variable radial velocity; V? = suspected variable radial velocity; SB, SB1, SB2, SB3 = spectroscopic binaries, single, double or triple lined spectra; O = orbital data available.
Byte-by-byte Description of file: notes
Bytes Format Units Label Explanations
2- 5 I4 --- HR [1/9110]+= Harvard Revised (HR) 6- 7 I2 --- Count Note counter (sequential for a star) 8- 11 A4 --- Category *[A-Z: ] Remark category abbreviation: 13-132 A120 --- Remark Remarks in free form text
Note on Category: the following abbreviations are used: C - Colors; D - Double and multiple stars; DYN - Dynamical parallaxes; G - Group membership; M - Miscellaneous. N - Star names; P - Polarization; R - Stellar radii or diameters; RV - Radial and/or rotational velocities; S - Spectra; SB - Spectroscopic binaries; VAR - Variability; The category abbreviation is always followed by a colon (:).
Historical Notes: * 02-Oct-1993 at CDS (Francois Ochsenbein) A few corrections have been inserted from the CD-ROM version "Selected Astronomical Catalogs, Volume 1, 1991, directory /combined/bsc5 at CDS with the agreement of Wayne H. Warren Jr: 1. The spectral type for HR 6397 is from Walborn and contained octal 032 (control-Z) characters instead of square brackets around the "n". 2. Two remarks have been added for 6985 and 8817 3. Byte 197 (NoteFlag) of "catalog" file corrected for stars 202 7126 7482 7614 8982 (removed asterisk) 285 342 841 843 991 1181 1553 1652 2269 2271 (added asterisk) 2837 3133 3962 4522 4789 6692 7076 7328 8306 8667 (added asterisk) * 02-Nov-1995 at CDS (Francois Ochsenbein): Documentation slightly changed to accommodate to standards, and two lines which were inverted in "notes" have been replaced.
(End) Francois Ochsenbein [CDS] 02-Nov-1995
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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