VizieR

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VizieR

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J/ApJ/543/178/table5 Nearby Optical Galaxy (NOG) sample (Giuricin+, 2000)
Catalog of the Hierarchical (H) Groups (1093 rows)
  NOGG=228
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ColumnValue  Explain   (UCD)
_RAJ200004 19 54.631 "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)
_DEJ2000-63 11 51.77 "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)
_RAB195004 19 21.000 "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)
_DEB1950-63 18 57.00 "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)
_Glon274.888575 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-40.799448 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)
228recno 228  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

NOGG 228  Nearby Optical Galaxy (NOG) group number (Note 1)   (meta.id;meta.main)
f_NOGG    [*+=] See note (Note 2)   (meta.code)
NameNGC1559  Name of the brightest galaxy of the group (meta.id.assoc)
NGal 2  Number of galaxy members of the group (meta.number)
RAB195004 19 21.0 "h:m:s" (i) Median group Right Ascension (B1950) (pos.eq.ra;meta.main)
DEB1950-63 18 57 "d:m:s" (i) Median group Declination (B1950) (pos.eq.dec;meta.main)
cz1087 km/s Median group recession velocity (phys.veloc;em.wl.central;stat.median)
Common   Common name of the group (meta.id)
P1216  Percolation algorithm method 1 cross-id (Note 3)   (meta.id)
P2220  Percolation algorithm method 2 cross-id (Note 4)   (meta.id)
LGG   Cross-identification with Garcia (1983, Cat. J/A+AS/100/47) (meta.id.cross)
NBGG   Cross-identification with Tully (1987ApJ...321..280T) (meta.id.cross)

_RA.icrs04 19 54.6 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-63 11 52 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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