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VizieR

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III/42/catalog Selected MK Spectral Types (Jaschek, 1978)
The catalog of Selected MK Types (30361 rows)
  recno=5141
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ColumnValue  Explain   (UCD)
_RAJ200004 19 12.0 "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+50 02 43 "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)
_RAB195004 15 26.5 "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+49 55 29 "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)
_Glon153.3055 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 -0.1607 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)
5141recno 5141  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Number 2031  Running number in one of the original catalogues (meta.id)
catK   [JK] Original catalogue: J or K (Note)   (meta.id)
Name 27084  Identification of the star (generally HD or DM number) (meta.id;meta.main)
RA190004 11.7 "h:m:s" (i) Right Ascension 1900 (pos.eq.ra;meta.main)
DE1900+49 48 "d:m:s" (i) Declination 1900 (pos.eq.dec;meta.main)
Vmag 5.48 mag V magnitude (Note)   (phot.mag;em.opt.V)
n_Vmag    [V] 'V' for variability (meta.note)
MKK(1)  Source and ID of available MK types (meta.id;src.spType)
Ref135  Reference number in the original catalogue (meta.id)
SpType A7 V  Selected MK spectral classification (src.spType)
q_SpType    [A-D] Quelity of the classification, A=best (meta.code.qual;src.spType)
Disp  10-7 Dispersion used (in Angstroem/mm at Hγ) for the selected classification and system (Note)   (instr)
RefCode69..2001  Bibliographical coded Number, used for the BSI (Spite et al., 1980) (meta.ref;pos.frame)
BibCode1969AJ.....74..375C  Standardized bibliographical code (meta.bib.bibcode)

_RA.icrs04 19.2 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs+50 03 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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