VizieR

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VizieR

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J/MNRAS/289/263/catalog Galaxy clusters from the APM galaxy survey (Dalton+ 1997)
The APM cluster catalogue (957 rows)
  recno=917
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200023 41 33.394 "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)
_DEJ2000-29 09 12.28 "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)
_RAB195023 38 56.401 "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)
_DEB1950-29 25 51.00 "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)
_Glon021.355153 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-74.477003 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)
917recno 917  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

Cluster917  Cluster number (meta.id;meta.main)
RA195023 38 56.4 "h:m:s" (i) Right ascension (1950) (pos.eq.ra;meta.main)
DE1950-29 25 51 "d:m:s" (i) Declination sign (pos.eq.dec;meta.main)
Xmag18.07 mag X magnitude (Note 1)   (phot.mag;em.opt.B)
rC10.5 arcmin Projected radius (phys.angSize;src)
z 0.069  Estimated redshift determined from Xmag (src.redshift)
R 56.3  Cluster richness (src.class.richness)
n_R    [abc] Notes (Note 2)   (meta.note)
zabs 0.063   Absorption redshift (src.redshift)
n_zabs1,4   [12345+, ] Notes (Note 3)   (meta.note)
  
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