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=3634
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ColumnValue  Explain   (UCD)
_RAJ200011 05 52.9 "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)
_DEJ2000-00 02 07 "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 03 19.1 "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+00 14 06 "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)
_Glon255.5537 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+52.8416 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)
3634recno 3634  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NGC3521   [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)
RA197511 04.6 "h:m:s" (i) Right Ascension (1975) (pos.eq.ra;meta.main)
DE1975+00 06 "d:m:s" (i) Declination (1975) (pos.eq.dec;meta.main)
Xpos 34 mm Position eastwards on POSS blue print (pos.cartesian.x;instr.plate)
Ypos216 mm Position northwards on POSS blue print (pos.cartesian.y;instr.plate)
Mag10.5 mag Magnitude rounded to the nearest half magnitude (phot.mag)
r_Mag1   Source of Magnitude (Note 2)   (meta.ref)
OldDescCB,CL,ME140,VSMBMN  Visual appearance of object transcribed from Dreyer J.L.E. (1888) (Note 3)   (src.morph.type)
NewDesc,B,EL,DIFKNTIW SSTR  Palomar Sky Survey Description of each object (Note 4)   (meta.note)
Notes*,Z*,V*,M  Cross References for RNGC objects (Note 5)   (meta.note)

_RA.icrs11 05.9 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-00 02 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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