VizieR

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VizieR

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III/206/mk13 13th General Catalogue of MK Spectral Classification (Buscombe 1998)
The 13th General Catalogue (19208 rows)
  recno=3723
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ColumnValue  Explain   (UCD)
_RAJ200005 38 06.1 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-00 11 00 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195005 35 32.5 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-00 12 41 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon204.5074 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-16.3445 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
3723recno 3723  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

IdAB 37370  Identification for star (meta.id;meta.main)
RA200005 38.1 "h:m:s" (i) Right Ascension (2000) hour (pos.eq.ra;meta.main)
DE2000-00 11 "d:m:s" (i) Declination (2000) degree (pos.eq.dec;meta.main)
u_DEm    [:] DEm uncertain (meta.code.error)
SpType B 6 V  MK type (src.spType)
n_SpType    [*] '*' for a standard (meta.note)
n_Vmag    [B] 'B' when Vmag represents a B magnitude (meta.note)
Vmag 7.47 mag Johnson V magnitude (phot.mag;em.opt.V)
u_Vmag    [:m] Uncertainty or mean flag on Vmag (Note)   (meta.code.error)
B-V-0.04 mag Johnson B-V color (phot.color;em.opt.B;em.opt.V)
u_B-V    [m] mean flag on B-V (Note)   (meta.code.error)
U-B-0.46 mag Johnson U-B color (phot.color;em.opt.U;em.opt.B)
Name AB  Alternate identification, usually HD (meta.id)
  
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