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II/250/gcvs_cat Combined General Catalogue of Variable Stars (Samus+ 2004)
The GCVS4.2 Catalog (Vol. I-III) (38624 rows)
  GCVS==YY Dra
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ColumnValue  Explain   (UCD)
_RAJ200011 43 35.000 "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+71 42 09.00 "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)
_RAB195011 40 45.423 "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+71 58 47.68 "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)
_Glon130.303168 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+44.441794 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)
13724recno 13724  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

VarNum340052  Numeric designation, made from constellation and star names (codes in file "constel.txt") (meta.id)
m_VarNum   Component identification (Note 1)   (meta.code.multip)
GCVSYY Dra  (i) Variable star designation (Note G1)   (meta.id)
n_GCVSx   [*] indicates a remark in "gcvs_rem.dat" file , x indicates the existence of cross-identifications (meta.note)
u_DE1950:   [:*] position accuracy flags (Note G2)   (meta.code.error;pos.eq.dec)
RAJ200011 43 35.0 "h:m:s" (i) Hours RA, equinox J2000.0 (Note 2)   (pos.eq.ra;meta.main)
DEJ2000+71 42 09 "d:m:s" (i) Degrees Dec, equinox J2000.0 (Note 2)   (pos.eq.dec;meta.main)
u_DEJ2000    [:*] position accuracy flags (Note G2)   (meta.code.error;pos.eq.dec)
n_Pos*   [*] Position computed from B1950 (Note 3)   (meta.note)
VarTypeEA/SD  Type of variability (see file "vartype.txt") (meta.code;src.var)
l_magMax    [<>(] Limit or amplitude symbol on magMax (Note G3)   (meta.code.error)
magMax12.900 mag Magnitude at maximum brightness (phot.mag)
u_magMax   Uncertainty flag (:) on magMax (meta.code.error)
l_magMin<   [<(] Limit or amplitude symbol on magMin (Note G3)   (meta.code.error)
magMin14.500 mag Minimum magnitude or amplitude (phot.mag)
u_magMin   Uncertainty flag (:) on magMin (meta.code.error)
n_magMin   Alternative photometric system for magMin (Note G4)   (meta.note)
magCodep  The photometric system for magnitudes (Note G4)   (meta.code;instr.filter)
Epoch2419852.40000 d Epoch for maximum light, Julian days (Note G5)   (time.epoch)
u_Epoch    [:±] Uncertainty flag on Epoch (Note 4)   (meta.code.error;time.epoch)
Year   Year of outburst for nova or supernova (time.epoch)
u_Year    [:] Uncertainty flag on Year of outburst (meta.code.error)
l_Period    [<>(] Code for upper or lower limits (Note 5)   (meta.code.error;time.period)
Period 4.2112300000 d Period of the variable star (time.period)
u_Period    [*/N)2: ] Uncertainties on Period (Note 6)   (meta.code.error;time.period)
M-m/D  % Rising time or duration of eclipse (Note G6)   (time.interval)
u_M-m/D   Uncertainty flag (:) on M-m/D (meta.code.error)
n_M-m/D    [*] Note for eclipsing variable (Note G6)   (meta.note)
SpType   MK Spectral type (src.spType)
Ref101475  Reference to a study of the star (Note G7)   (meta.bib)
Ref2   Reference to a chart or photograph (Note G7)   (meta.bib)
f_GCVS    [=N+] "N" if the star does not exist (Note 7)   (meta.code)
VarName   Alternative name of the variable (Note G8)   (meta.id)

AFOEVAFOEV  Check the existence of a light curve at AFOEV (meta.ref.url)
SimbadSimbad  ask the Simbad data-base about this object
  
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