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VizieR

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B/mk/mktypes Catalogue of Stellar Spectral Classifications (Skiff, 2009- )
The catalog of MK Spectral Types (888588 rows)
  recno=675813
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Note: Details of surveyed literature

ColumnValue  Explain   (UCD)
_RAJ200017 45 11.6300 "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)
_DEJ2000-28 19 32.100 "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 42 01.9369 "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)
_DEB1950-28 18 20.493 "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)
_Glon000.4722689 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 +0.3981561 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)
675813recno 675813  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameIRC -30319  Star name as published or valid SIMBAD name (Lortet et al.) (meta.id)
Mag 8.80 mag Magnitude, see passband in n_Mag (phot.mag)
n_MagV  Color passband of magnitude (Note 2)   (meta.note)
n_SpType    [+] if spectral type is an MK standard (meta.note)
SpTypeM2  spectral type (MK, HD, or other) (src.spType)
Remarksreddened  Comments (Note 3)   (meta.note)
Bibcode1975AJ.....80.1011H  Publication Source (meta.bib.bibcode)
RAJ200017 45 11.63 "h:m:s" (i) Right Ascension (J2000) hour (pos.eq.ra;meta.main)
DEJ2000-28 19 32.1 "d:m:s" (i) Declination (J2000) degree (pos.eq.dec;meta.main)
rcU  Source of coordinates (Note 1)   (meta.ref;pos.frame)

SimbadSimbad  ask the SIMBAD data-base about this object (meta.ref)
  
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