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V/50/catalog Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)
The main part of the Catalogue (9110 rows)
  HR===7447
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ColumnValue  Explain   (UCD)
_RAJ200019 36 43.3 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000-01 17 11 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195019 34 08.1 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950-01 23 56 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon036.9878 deg Galactic longitude at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-10.6554 deg Galactic latitude at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.galactic.lat)

HR7447   [1/9110] Harvard Revised Number = Bright Star Number (meta.id;meta.main)
Name 41Iot Aql  Name, generally Bayer and/or Flamsteed name (meta.id)
DMBD-01 3782  Durchmusterung Identification (zone in bytes 17-19) (meta.id)
HD184930   [1/225300] Henry Draper Catalog Number (meta.id)
SAO143597   [1/258997] SAO Catalog Number (meta.id)
FK5    FK5 star Number (meta.id)
IRflag    [I] I if infrared source (meta.note)
r_IRflag    [ ':] Coded reference for infrared source (Note)   (meta.ref)
Multiple    [AWDIRS] Double or multiple-star code (Note)   (meta.note)
ADS12663  Aitken's Double Star Catalog (ADS) designation (meta.id)
ADScomp   ADS number components (meta.id)
VarID12201  Variable star identification (meta.id)
RAJ200019 36 43.3 "h:m:s" Hours RA, equinox J2000, epoch 2000.0 (Note 1)   (pos.eq.ra;meta.main)
DEJ2000-01 17 11 "d:m:s" Sign Dec, equinox J2000, epoch 2000.0 (Note 1)   (pos.eq.dec;meta.main)
GLON 36.99 deg Galactic longitude (Note 1)   (pos.galactic.lon)
GLAT-10.66 deg Galactic latitude (Note 1)   (pos.galactic.lat)
Vmag 4.36 mag Visual magnitude (Note 1)   (phot.mag;em.opt.V)
n_Vmag    [ HR] Visual magnitude code (Note)   (meta.note)
u_Vmag    [ :?] Uncertainty flag on V (meta.code.error)
B-V-0.08 mag B-V color in the UBV system (phot.color;em.opt.B;em.opt.V)
u_B-V    [ :?] Uncertainty flag on B-V (meta.code.error)
U-B-0.44 mag U-B color in the UBV system (phot.color;em.opt.U;em.opt.B)
u_U-B    [ :?] Uncertainty flag on U-B (meta.code.error)
R-I-0.08 mag R-I in system specified by n_R-I (phot.color;em.opt.R;em.opt.I)
n_R-I    [CE:?D] Code for R-I system (Cousin, Eggen) (meta.note)
SpType B5III  Spectral type (src.spType)
n_SpType    [evt] Spectral type code (meta.note)
pmRA 0.004 arcsec/yr Annual proper motion in RA J2000, FK5 system (pos.pm;pos.eq.ra)
pmDE-0.018 arcsec/yr Annual proper motion in Dec J2000, FK5 system (pos.pm;pos.eq.dec)
n_Parallax    [D] D indicates a dynamical parallax, otherwise a trigonometric parallax (meta.note)
Parallax 0.004 arcsec Trigonometric parallax (unless n_Parallax) (pos.parallax.trig)
RadVel -21 km/s Heliocentric Radial Velocity (phys.veloc;pos.heliocentric)
n_RadVelV   [V?SB123O ] Radial velocity comments (Note)   (meta.note)
l_RotVel    [<=> ] Rotational velocity limit characters (meta.code.error)
RotVel 95 km/s Rotational velocity, v sin i (phys.veloc.rotat)
u_RotVel    [ :v] uncertainty and variability flag on RotVel (meta.code.error)
Dmag 8.9 mag Magnitude difference of double, or brightest multiple (phot.mag;arith.diff)
Sep 47.0 arcsec Separation of components in Dmag if occultation binary. (pos.angDistance)
MultID   Identifications of components in Dmag (meta.code.multip)
MultCnt    Number of components assigned to a multiple (meta.number)
NoteFlag*   [*] a star indicates that there is a note (see file notes) (meta.note)
  
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