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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 (911723 rows)
  recno=441172
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Note: Details of surveyed literature

ColumnValue  Explain   (UCD)
_RAJ200010 17 38.1600 "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+17 21 59.500 "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)
_RAB195010 14 55.2016 "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+17 37 00.545 "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)
_Glon220.1510492 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+53.2564948 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)
441172recno 441172  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameSDSS J101738.16+172159.5  Star name as published or valid SIMBAD name (Lortet et al.) (meta.id)
Mag20.24 mag Magnitude, see passband in n_Mag (phot.mag)
n_MagR  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)
Remarks   Comments (Note 3)   (meta.note)
Bibcode2011AJ....141...97W  Publication Source (meta.bib.bibcode)
RAJ200010 17 38.16 "h:m:s" (i) Right Ascension (J2000) hour (pos.eq.ra;meta.main)
DEJ2000+17 21 59.5 "d:m:s" (i) Declination (J2000) degree (pos.eq.dec;meta.main)
rcS  Source of coordinates (Note 1)   (meta.ref;pos.frame)

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