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VizieR

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III/260/catalog General Catalogue of Ap and Am stars (Renson+ 2009)
Catalogue of Ap, HgMn and Am stars (version 2009) (8205 rows)
  recno=5385
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ColumnValue  Explain   (UCD)
_RAJ200015 40 28.4500 "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+18 40 17.300 "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)
_RAB195015 38 13.2063 "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+18 49 54.275 "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)
_Glon029.8057513 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+50.3541497 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)
5385recno 5385  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

n_Seq    [/?* ] Peculiarity probability note (Note 1)   (meta.note)
Seq39800  (i) [1/61790] Running number in the catalog (Note 2)   (meta.id;meta.main)

NN  N indicates a note in notes.dat file (meta.ref.url)

SpTypeA2-A9  Spectral classification (Note 8)   (src.spType)
HD139939   [1/359083] HD(E) identification (meta.id)
m_HDA  Multiplicity indicator (Note 3)   (meta.code.multip)
HIP 76769   [1/120404] Hipparcos catalogue (I/239) (meta.id)
m_HIPA  Multiplicity indicator (Note 3)   (meta.code.multip)
HR    [1/9110] HR (V/50) identification (meta.id)
m_HR   Multiplicity indicator (Note 3)   (meta.code.multip)
DMBD+19 3000  Durchmusterung (BD, CD, CP) designation (Note 4)   (meta.id)
m_DMA  Multiplicity indicator (Note 3)   (meta.code.multip)
TYC1498-1693-1  Tycho-2 catalogue (I/259) (meta.id)
Name   Bayer / Flamsteed name (Note 5)   (meta.id)
Vmag 8.4 mag Magnitude, generally V (Note 6)   (phot.mag;em.opt.V)
B-V  mag B-V colour index (Note 7)   (phot.color;em.opt.B;em.opt.V)
U-B  mag U-B colour index (Note 7)   (phot.color;em.opt.U;em.opt.B)
b-y  mag b-y from Stroemgren photometry (phot.color;em.opt.B;em.opt.V)
m1  mag m1 = (v-b)-(b-y) from Stroemgren (phot.color)
c1  mag c1 = (u-v)-(v-b) from Stroemgren (phot.color)
Hbeta  mag H-beta index from Stroemgren (spect.index;em.line.Hbeta)
NoteCode* D   [ABCDHNPRSV* ] Notes detailed in notes.dat (Note G1)   (meta.note)

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

RA190015 35 58.3 "h:m:s" Right Ascension 1900 (pos.eq.ra)
DE1900+18 59 38 "d:m:s" Declination 1900 (pos.eq.dec)
RAJ200015 40 28.45 "h:m:s" (i) Right Ascension J2000 (pos.eq.ra;meta.main)
DEJ2000+18 40 17.3 "d:m:s" (i) Declination J2000 (pos.eq.dec;meta.main)
  
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