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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=22672
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ColumnValue  Explain   (UCD)
_RAJ200017 53 30.7 "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+56 51 56 "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)
_RAB195017 52 39.3 "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+56 52 26 "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)
_Glon085.1583 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+30.2310 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)
22672recno 22672  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Number10001  Running number in one of the original catalogues (meta.id)
catJ   [JK] Original catalogue: J or K (Note)   (meta.id)
Name 163588  Identification of the star (generally HD or DM number) (meta.id;meta.main)
RA190017 51.8 "h:m:s" (i) Right Ascension 1900 (pos.eq.ra;meta.main)
DE1900+56 53 "d:m:s" (i) Declination 1900 (pos.eq.dec;meta.main)
Vmag 3.90 mag V magnitude (Note)   (phot.mag;em.opt.V)
n_Vmag    [V] 'V' for variability (meta.note)
MK 20  Source and ID of available MK types (meta.id;src.spType)
Ref 53  Reference number in the original catalogue (meta.id)
SpType K2. III  Selected MK spectral classification (src.spType)
q_SpTypeD   [A-D] Quelity of the classification, A=best (meta.code.qual;src.spType)
Disp 120 P 10-7 Dispersion used (in Angstroem/mm at Hγ) for the selected classification and system (Note)   (instr)
RefCode52....59  Bibliographical coded Number, used for the BSI (Spite et al., 1980) (meta.ref;pos.frame)
BibCode1952ApJ...116..122R  Standardized bibliographical code (meta.bib.bibcode)

_RA.icrs17 53.5 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs+56 52 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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