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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=26371
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ColumnValue  Explain   (UCD)
_RAJ200020 17 47.2 "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+38 01 41 "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)
_RAB195020 15 56.6 "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+37 52 17 "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)
_Glon075.8227 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 +1.3165 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)
26371recno 26371  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Number12783  Running number in one of the original catalogues (meta.id)
catJ   [JK] Original catalogue: J or K (Note)   (meta.id)
Name 193237  Identification of the star (generally HD or DM number) (meta.id;meta.main)
RA190020 14.1 "h:m:s" (i) Right Ascension 1900 (pos.eq.ra;meta.main)
DE1900+37 43 "d:m:s" (i) Declination 1900 (pos.eq.dec;meta.main)
Vmag 4.82 mag V magnitude (Note)   (phot.mag;em.opt.V)
n_Vmag    [V] 'V' for variability (meta.note)
MKK***  Source and ID of available MK types (meta.id;src.spType)
Ref112  Reference number in the original catalogue (meta.id)
SpType B2 PE  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)
RefCode68...326  Bibliographical coded Number, used for the BSI (Spite et al., 1980) (meta.ref;pos.frame)
BibCode1968ApJS...17..371L  Standardized bibliographical code (meta.bib.bibcode)

_RA.icrs20 17.8 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs+38 02 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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