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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=20968
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ColumnValue  Explain   (UCD)
_RAJ200016 05 25.0 "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)
_DEJ2000-19 48 23 "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)
_RAB195016 02 30.3 "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)
_DEB1950-19 40 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)
_Glon353.1886 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+23.6023 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)
20968recno 20968  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Number 9205  Running number in one of the original catalogues (meta.id)
catJ   [JK] Original catalogue: J or K (Note)   (meta.id)
Name 144218  Identification of the star (generally HD or DM number) (meta.id;meta.main)
RA190015 59.6 "h:m:s" (i) Right Ascension 1900 (pos.eq.ra;meta.main)
DE1900-19 32 "d:m:s" (i) Declination 1900 (pos.eq.dec;meta.main)
Vmag 4.90 mag V magnitude (Note)   (phot.mag;em.opt.V)
n_Vmag    [V] 'V' for variability (meta.note)
MK****  Source and ID of available MK types (meta.id;src.spType)
Ref 65  Reference number in the original catalogue (meta.id)
SpType B2. V  Selected MK spectral classification (src.spType)
q_SpType    [A-D] Quelity of the classification, A=best (meta.code.qual;src.spType)
Disp 60 10-7 Dispersion used (in Angstroem/mm at Hγ) for the selected classification and system (Note)   (instr)
RefCode53...127  Bibliographical coded Number, used for the BSI (Spite et al., 1980) (meta.ref;pos.frame)
BibCode1953ApJ...117..313J  Standardized bibliographical code (meta.bib.bibcode)

_RA.icrs16 05.4 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-19 48 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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