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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/table3(c)Revised northern "Abell Catalog" (2712 rows)
2.VII/110A/table4(c)Southern "Abell Catalog" (1364 rows)
3.VII/110A/table5(c)Supplementary southern clusters (1174 rows)
4.VII/110A/table6(c)Overlap zone clusters (274 rows)
5.VII/110A/notesNotes to tables 4, 5 and 6. (3316 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1+2+5)ACO  (i) [1,2712] "Abell" number (meta.id;meta.main)
  (1+2+3+4)RAB1950 "h:m:s" (i) right ascension (B1950) (pos.eq.ra;meta.main)
  (1+2+3+4)DEB1950 "d:m:s" (i) declination (B1950) (pos.eq.dec;meta.main)
  (1+2+3+4)BMtype (char) [- I:] cluster classification in the Bautz- Morgan system (src.class.struct)
  (1+2+3+4)Count ct [0,] number of cluster members between m3 and m3+2, corrected for background (meta.number)
  (1+2+3+4)Xpos 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)
  (1+2+3+4)Ypos mm same with above (y coordinate) (pos.cartesian.y;instr.plate)
  (1+2+3+4)GLON deg galactic longitude l2 (pos.galactic.lon)
  (1+2+3+4)GLAT deg galactic latitude b2 (pos.galactic.lat)
  (1+2+3+4)z  (n) cluster redshift from Struble and Rood (1987ApJS...63..555S) (src.redshift)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1+2+3+4)Rich  richness, from Abell (1958ApJS....3..211A) (Note)   (src.class.richness)
  (1+2+3+4)Dclass  distance class, from Abell (Note 1958)   (src.class.distance)
  (1+2+3+4)m10 mag red magnitude of the tenth brightest cluster member, from Abell (1958) (phot.mag)
  (1+2+3+4)_RA.icrs "h:m:s" (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
  (1+2+3+4)_DE.icrs "d:m:s" (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  (2+3+4+5)Field (char) [0-9F] the Southern Sky Survey Field number in which the cluster is located (meta.id;obs.field)
  (2+3+4)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)
  (2+3+4)Ycen mm same with above (+ = north) (pos.cartesian.y;instr.plate)
  (2+3+4)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)
  (2+3+4)u_Count (char) [:*?)] uncertainty of the Count (meta.code.error;phot.count)
  (2+3+4)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)
  (2+3+4)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)
  (2+3+4)m3 mag weighted mean total V magnitude estimated for the third-ranked cluster member (again uncorrected) (phot.mag;em.opt.V)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3+4)u_m3 (char) [:?*] same with u_m1 (meta.code.error)
  (2+3+4)u_m10 (char) [:?*] same with u_m1 (meta.code.error)
  (2+3+4)Prev (char) [ BDdKOQRSs] sources of previous listings B = Braid and MacGillivray (1978MNRAS.182..241B), etc. see file "docu.txt" (meta.id)
  (2+3+4)u_z (char) [)] uncertainty parenthesis, close (meta.code.error;src.redshift)
  (2+3+4)m10A mag magnitude of the tenth brightest cluster member, corrected for galactic extinction following Abell's formula (phot.mag;arith.diff)
  (2+3+4)NF_1   [1,4] number of fields in which the cluster was found (meta.number)
  (2+3+4)Obs_1 (char) [ACO] observer's initial (A = Abell, C = Corwin, O = Olowin) (obs.observer)
  (2+3+4)NF_2  (n) [1,4] same with NF_1 (meta.note)
  (2+3+4)Obs_2 (char) [ACO] same with Obs_1 (meta.note)
  (2)NF_3  (n) [1,4] same with NF_1 (meta.note)
  (2)Obs_3 (char) [ACO] same with Obs_1 (meta.note)
  (3)S (char) [S] prefix to the supplementary southern cluster number (meta.id.part;meta.main)
  (3)ACOS  (i) [1,1174] "Abell" number for supplementary southern cluster (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)ABELL   [1,2712] "Abell" number for the clusters in the 10 deg overlap zone (-17 to -27 deg) (meta.id;meta.main)
  (5)Prefix (char) [AS] prefix to the "Abell" cluster number blank for Abell number from table4.dat 'A' for Abell number from table6.dat 'S' for Abell number from table5.dat (meta.id.part;meta.main)
  (5)Notes (char) Notes for tables 4-6 (meta.note)

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