VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
VII/110A
  Rich Clusters of Galaxies (Abell+ 1989)
ReadMe+ftp
1989ApJS...70....1A
Similar Catalogs
Post annotation 		img(gal)
1.VII/110A/table4Southern "Abell Catalog" (1364 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  ACO  (i) [2713,4076] "Abell" number for the southern rich cluster (meta.id;meta.main)
  RAB1950 "h:m:s" (i) right ascension (B1950) (pos.eq.ra;meta.main)
  DEB1950 "d:m:s" (i) declination (B1950) (pos.eq.dec;meta.main)
  Field (char) [0-9F] the Southern Sky Survey Field number in which the cluster is located (meta.id;obs.field)
  Xcen mm rectangular coordinates if the apparent cluster center, referred to the CENTER of the Southern Sky Survey Field (+ = east) (pos.cartesian.x;instr.plate)
  Ycen mm same with above (+ = north) (pos.cartesian.y;instr.plate)
  Atype (char) [ IR?:] cluster classification in Abell's system: I = irregu lar, R = regular, IR and RI = intermediate, ":" and "?" see file "docu.txt" (meta.note)
  BMtype (char) [- I:?] cluster classification in the Bautz-Morgan system (src.class.struct)
  Count ct [0,] number of cluster members between m3 and m3+2, corrected for background (meta.number)
  u_Count (char) [:*?)] uncertainty of the Count (meta.code.error;phot.count)

ALL cols		    
 (i)indexed column
  m1 mag (n) weighted mean total V mag. estimated for the first-ranked cluster member (no galactic extinction correction has been applied) (phot.mag;em.opt.V)
  u_m1 (char) [:?*] ":" = s.d. of more than ±0.5mag "?" = s.d. of more than ±1.0mag "*: = known or probable foreground object (meta.code.error)
  m3 mag weighted mean total V magnitude estimated for the third-ranked cluster member (again uncorrected) (phot.mag;em.opt.V)
  u_m3 (char) [:?*] same with u_m1 (meta.code.error)
  m10 mag weighted mean total V magnitude estimated for the tenth-ranked cluster member (again uncorrected) (phot.mag)
  u_m10 (char) [:?*] same with u_m1 (meta.code.error)
  Prev (char) [ BDdKOQRSs] sources of previous listings B = Braid and MacGillivray (1978MNRAS.182..241B), etc. see file "docu.txt" (meta.id)
  Xpos mm rectangular coordinates of the apparent cluster center, referred to the south-east (lower left) edge of the Southern Sky Survey Field (x coordinate) (pos.cartesian.x;instr.plate)
  Ypos mm same with above (y coordinate) (pos.cartesian.y;instr.plate)
  GLON deg galactic longitude l2 (pos.galactic.lon)
  GLAT deg galactic latitude b2 (pos.galactic.lat)
  z  (n) cluster redshift from Struble and Rood (1987ApJS...63..555S) (src.redshift)
  u_z (char) [)] uncertainty parenthesis, close (meta.code.error;src.redshift)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Rich  richness, from Abell (1958ApJS....3..211A) (Note)   (src.class.richness)
  Dclass  distance class, from Abell (Note 1958)   (src.class.distance)
  m10A mag magnitude of the tenth brightest cluster member, corrected for galactic extinction following Abell's formula (phot.mag;arith.diff)
  NF_1   [1,4] number of fields in which the cluster was found (meta.number)
  Obs_1 (char) [ACO] observer's initial (A = Abell, C = Corwin, O = Olowin) (obs.observer)
  NF_2  (n) [1,4] same with NF_1 (meta.note)
  Obs_2 (char) [ACO] same with Obs_1 (meta.note)
  NF_3  (n) [1,4] same with NF_1 (meta.note)
  Obs_3 (char) [ACO] same with Obs_1 (meta.note)
  _RA.icrs "h:m:s" (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  _DE.icrs "d:m:s" (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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