VizieR

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VizieR

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VII/1B/catalog Revised New General Catalogue (Sulentic+, 1973)
The Revised NGC Catalog (8163 rows)
  -c=NGC 1931,rm=5.0
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ColumnValue  Explain   (UCD)
_r1.5 arcmin Distance from center (05 29.7+34 13)[FK4/B1975] (pos.angDistance)
_RAJ200005 31 27.5 "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+34 15 04 "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)
1976recno 1976  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NGC1931   [1/7840] The original NGC number (meta.id;meta.main)
m_NGC   Component of NGC (Note 6)   (meta.code.multip)
Type 6  Type of object (Note 1)   (src.class)
RA197505 29.8 "h:m:s" (i) Right Ascension (1975) (pos.eq.ra;meta.main)
DE1975+34 14 "d:m:s" (i) Declination (1975) (pos.eq.dec;meta.main)
Xpos 17 mm Position eastwards on POSS blue print (pos.cartesian.x;instr.plate)
Ypos 76 mm Position northwards on POSS blue print (pos.cartesian.y;instr.plate)
Mag13.0 mag Magnitude rounded to the nearest half magnitude (phot.mag)
r_Mag5   Source of Magnitude (Note 2)   (meta.ref)
OldDescVB,L,R,B***IN M  Visual appearance of object transcribed from Dreyer J.L.E. (1888) (Note 3)   (src.morph.type)
NewDesc   Palomar Sky Survey Description of each object (Note 4)   (meta.note)
NotesY,HO,R  Cross References for RNGC objects (Note 5)   (meta.note)

_RA.icrs05 31.5 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+34 15 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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