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)
  recno=6937
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ColumnValue  Explain   (UCD)
_RAJ200018 33 31.2 "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+40 03 12 "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)
_RAB195018 31 52.9 "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+40 00 50 "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)
_Glon068.4880 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+20.2815 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)
6937recno 6937  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NGC6663   [1/7840] The original NGC number (meta.id;meta.main)
m_NGC   Component of NGC (Note 6)   (meta.code.multip)
Type 5  Type of object (Note 1)   (src.class)
RA197518 32.7 "h:m:s" (i) Right Ascension (1975) (pos.eq.ra;meta.main)
DE1975+40 02 "d:m:s" (i) Declination (1975) (pos.eq.dec;meta.main)
Xpos187 mm Position eastwards on POSS blue print (pos.cartesian.x;instr.plate)
Ypos 63 mm Position northwards on POSS blue print (pos.cartesian.y;instr.plate)
Mag15.0 mag Magnitude rounded to the nearest half magnitude (phot.mag)
r_Mag2   Source of Magnitude (Note 2)   (meta.ref)
OldDescEEF,PS,R,VDIFFIC  Visual appearance of object transcribed from Dreyer J.L.E. (1888) (Note 3)   (src.morph.type)
NewDesc,VDIF,LBM,STELNUC  Palomar Sky Survey Description of each object (Note 4)   (meta.note)
Notes,V  Cross References for RNGC objects (Note 5)   (meta.note)

_RA.icrs18 33.5 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+40 03 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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