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=4658
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ColumnValue  Explain   (UCD)
_RAJ200012 31 40.6 "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+03 56 44 "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)
_RAB195012 29 07.5 "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+04 13 17 "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)
_Glon290.5693 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+66.3417 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)
4658recno 4658  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NGC4496   [1/7840] The original NGC number (meta.id;meta.main)
m_NGCA  Component of NGC (Note 6)   (meta.code.multip)
Type 5  Type of object (Note 1)   (src.class)
RA197512 30.4 "h:m:s" (i) Right Ascension (1975) (pos.eq.ra;meta.main)
DE1975+04 05 "d:m:s" (i) Declination (1975) (pos.eq.dec;meta.main)
Xpos172 mm Position eastwards on POSS blue print (pos.cartesian.x;instr.plate)
Ypos108 mm Position northwards on POSS blue print (pos.cartesian.y;instr.plate)
Mag12.0 mag Magnitude rounded to the nearest half magnitude (phot.mag)
r_Mag1   Source of Magnitude (Note 2)   (meta.ref)
OldDescF,CL,BIN OR DNEB  Visual appearance of object transcribed from Dreyer J.L.E. (1888) (Note 3)   (src.morph.type)
NewDescRRR,VDIF&KNY,BNBAR  Palomar Sky Survey Description of each object (Note 4)   (meta.note)
Notes*,Z*,V*,S1,HO415A  Cross References for RNGC objects (Note 5)   (meta.note)

_RA.icrs12 31.7 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs+03 57 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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