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=2022
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ColumnValue  Explain   (UCD)
_RAJ200005 35 26.1 "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)
_DEJ2000-04 48 05 "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)
_RAB195005 32 58.0 "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 49 58 "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)
_Glon208.4747 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-19.0814 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)
2022recno 2022  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NGC1977   [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 34.2 "h:m:s" (i) Right Ascension (1975) (pos.eq.ra;meta.main)
DE1975-04 49 "d:m:s" (i) Declination (1975) (pos.eq.dec;meta.main)
Xpos273 mm Position eastwards on POSS blue print (pos.cartesian.x;instr.plate)
Ypos230 mm Position northwards on POSS blue print (pos.cartesian.y;instr.plate)
Mag  mag Magnitude rounded to the nearest half magnitude (phot.mag)
r_Mag    Source of Magnitude (Note 2)   (meta.ref)
OldDesc42ORIONIS&NEB  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  Cross References for RNGC objects (Note 5)   (meta.note)

_RA.icrs05 35.4 "h:m:s" (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
_DE.icrs-04 48 "d:m:s" (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  
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