VizieR

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VizieR

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VII/110A/table3 Rich Clusters of Galaxies (Abell+ 1989)
Revised northern "Abell Catalog" (2712 rows)
  recno=278
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ColumnValue  Explain   (UCD)
_RAJ200001 57 18.1 "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+32 13 37 "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)
_RAB195001 54 24.0 "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+31 59 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)
_Glon138.7821 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-28.6096 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)
278recno 278  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ACO 278  (i) [1,2712] "Abell" number (meta.id;meta.main)
RAB195001 54.4 "h:m:s" (i) right ascension (B1950) (pos.eq.ra;meta.main)
DEB1950+31 59 "d:m:s" (i) declination (B1950) (pos.eq.dec;meta.main)
BMtypeIII   [- I:] cluster classification in the Bautz- Morgan system (src.class.struct)
Count 38 ct [0,] number of cluster members between m3 and m3+2, corrected for background (meta.number)
Xpos116 mm rectangular coordinates of the apparent cluster center, referred to the south-east (lower left) edge of the Palomar Sky Survey prints (x coordinate) (pos.cartesian.x;instr.plate)
Ypos255 mm same with above (y coordinate) (pos.cartesian.y;instr.plate)
GLON138.79 deg galactic longitude l2 (pos.galactic.lon)
GLAT-28.61 deg galactic latitude b2 (pos.galactic.lat)
z 0.0896   cluster redshift from Struble and Rood (1987ApJS...63..555S) (src.redshift)
Rich0  richness, from Abell (1958ApJS....3..211A) (Note)   (src.class.richness)
Dclass3  distance class, from Abell (Note 1958)   (src.class.distance)
m1015.6 mag red magnitude of the tenth brightest cluster member, from Abell (1958) (phot.mag)

_RA.icrs01 57.3 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs+32 14 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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