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Yale Bright Star Catalog

Version 5 of the Yale Bright Star Catalog of 9,110 stars

@kaggle.anavid7_yale_bright_star_catalog

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About this Dataset

Yale Bright Star Catalog

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

Authors: Dorrit Hoffleit, Wayne H. Warren Jr.

Description:

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 BSC contains 9110 objects (9096 stars + 14 novae or extragalactic objects for historical numbering). This 5th edition includes new data and expanded remarks. The catalog contains:

  • Identifications from other widely-used catalogs
  • Double and multiple star identifications
  • Indications of variability and variable star identifiers
  • Equatorial positions (B1900.0 and J2000.0)
  • Galactic coordinates
  • UBVRI photoelectric photometric data (where available)
  • Spectral types (Morgan-Keenan, MK classification)
  • Proper motions (J2000.0)
  • Parallax
  • Radial and rotational velocity data
  • Multiple star data (number of components, separation, magnitude differences)

In addition to the data file, there is an extensive remarks file that gives more detailed information on individual entries including:

  • Star names
  • Colors
  • Spectra
  • Variability details
  • Binary characteristics
  • Radial and rotational velocities for companion stars
  • Duplicity
  • Dynamical parallaxes
  • Stellar dimensions (radii and diameters)
  • Polarization
  • Membership in stellar groups and clusters

Data types and header descriptions

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: from NASA merged Infrared Catalogue, Schmitz et al., 1978
  • ': from Engles et al. 1982
  • :: 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). The total proper motion is:
    sqrt(pmRA^2 + pmDE^2)

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

Tables

Remarks

@kaggle.anavid7_yale_bright_star_catalog.remarks
  • 273.18 KB
  • 9190 rows
  • 4 columns
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CREATE TABLE remarks (
  "hr" BIGINT,
  "count" BIGINT,
  "category" VARCHAR,
  "remark" VARCHAR
);

Yale Bright Star Catalog V5

@kaggle.anavid7_yale_bright_star_catalog.yale_bright_star_catalog_v5
  • 672.41 KB
  • 9110 rows
  • 53 columns
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CREATE TABLE yale_bright_star_catalog_v5 (
  "hr" BIGINT,
  "name" VARCHAR,
  "dm" VARCHAR,
  "hd" DOUBLE,
  "sao" DOUBLE,
  "fk5" DOUBLE,
  "ifflag" VARCHAR,
  "r_ifflag" VARCHAR,
  "multiple" VARCHAR,
  "ads" DOUBLE,
  "adscomp" VARCHAR,
  "varid" VARCHAR,
  "rah1900" DOUBLE,
  "ram1900" DOUBLE,
  "ras19000" DOUBLE,
  "de_1900" VARCHAR,
  "ded1900" DOUBLE,
  "dem1900" DOUBLE,
  "des1900" DOUBLE,
  "rah" DOUBLE,
  "ram" DOUBLE,
  "ras" DOUBLE,
  "de" VARCHAR,
  "ded" DOUBLE,
  "dem" DOUBLE,
  "des" DOUBLE,
  "glon" DOUBLE,
  "glat" DOUBLE,
  "vmag" DOUBLE,
  "n_vmag" VARCHAR,
  "u_vmag" VARCHAR,
  "b_v" DOUBLE,
  "u_b_v" VARCHAR,
  "u_b" DOUBLE,
  "u_u_b" VARCHAR,
  "r_i" DOUBLE,
  "n_r_i" VARCHAR,
  "sptype" VARCHAR,
  "n_sptype" VARCHAR,
  "pmra" DOUBLE,
  "pmde" DOUBLE,
  "n_parallax" VARCHAR,
  "parallax" DOUBLE,
  "radvel" DOUBLE,
  "n_radvel" VARCHAR,
  "l_rotvel" VARCHAR,
  "rotvel" DOUBLE,
  "u_rotvel" VARCHAR,
  "dmag" DOUBLE,
  "sep" DOUBLE,
  "multid" VARCHAR,
  "multcnt" DOUBLE,
  "noteflag" VARCHAR
);

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