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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=794011
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Note: Details of surveyed literature

ColumnValue  Explain   (UCD)
_RAJ200020 58 53.7300 "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+44 15 28.400 "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 57 06.2069 "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+44 03 46.174 "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)
_Glon085.4598104 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 -1.0469600 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)
794011recno 794011  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NameV1057 Cyg  Star name as published or valid SIMBAD name (Lortet et al.) (meta.id)
Mag 9.40 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)
SpTypeA5/7IV:  spectral type (MK, HD, or other) (src.spType)
Remarks1971 Apr  Comments (Note 3)   (meta.note)
Bibcode1972IBVS..741....1G  Publication Source (meta.bib.bibcode)
RAJ200020 58 53.73 "h:m:s" (i) Right Ascension (J2000) hour (pos.eq.ra;meta.main)
DEJ2000+44 15 28.4 "d:m:s" (i) Declination (J2000) degree (pos.eq.dec;meta.main)
rcC  Source of coordinates (Note 1)   (meta.ref;pos.frame)

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