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=2505
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ColumnValue  Explain   (UCD)
_RAJ200007 45 23.5 "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)
_DEJ2000-37 58 42 "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)
_RAB195007 43 36.5 "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)
_DEB1950-37 51 20 "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)
_Glon252.4161 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 -6.7168 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)
2505recno 2505  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NGC2451   [1/7840] The original NGC number (meta.id;meta.main)
m_NGC   Component of NGC (Note 6)   (meta.code.multip)
Type 1  Type of object (Note 1)   (src.class)
RA197507 44.5 "h:m:s" (i) Right Ascension (1975) (pos.eq.ra;meta.main)
DE1975-37 55 "d:m:s" (i) Declination (1975) (pos.eq.dec;meta.main)
Xpos 40 mm Position eastwards on POSS blue print (pos.cartesian.x;instr.plate)
Ypos 85 mm Position northwards on POSS blue print (pos.cartesian.y;instr.plate)
Mag 3.5 mag Magnitude rounded to the nearest half magnitude (phot.mag)
r_Mag5   Source of Magnitude (Note 2)   (meta.ref)
OldDescCL,VVL,VLC,*4,5M  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)
NotesO,R  Cross References for RNGC objects (Note 5)   (meta.note)

_RA.icrs07 45.4 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-37 59 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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