| Show | Sort | Column | Constraint | Explain (UCD) |
| | | recno | | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD) |
| | | ACO | | (i) [2713,4076] "Abell" number for the southern rich cluster (meta.id;meta.main) (ID_MAIN) |
| | | RAB1950 | "h:m:s" | (i) right ascension (B1950) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN) |
| | | DEB1950 | "d:m:s" | (i) declination (B1950) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN) |
| | | Field | (char) | [0-9F] the Southern Sky Survey Field number in which the cluster is located (meta.id;obs.field) (ID_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) (POS_PLATE_X) |
| | | Ycen | mm | same with above (+ = north) (pos.cartesian.y;instr.plate) (POS_PLATE_Y) |
| | | 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) (CLASS_STRUCT) |
| | | BMtype | (char) | [- I:?] cluster classification in the Bautz-Morgan system (src.class.struct) (CLASS_STRUCT) |
| | | Count | ct | [0,] number of cluster members between m3 and m3+2, corrected for background (meta.number) (NUMBER) |
| | | u_Count | (char) | [:*?)] uncertainty of the Count (meta.code.error;phot.count) (CODE_ERROR) |
ALL cols | | | |
| | | 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) (PHOT_MAG_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) (CODE_ERROR) |
| | | m3 | mag | weighted mean total V magnitude estimated for the third-ranked cluster member (again uncorrected) (phot.mag;em.opt.V) (PHOT_INT-MAG_V) |
| | | u_m3 | (char) | [:?*] same with u_m1 (meta.code.error) (CODE_ERROR) |
| | | m10 | mag | weighted mean total V magnitude estimated for the tenth-ranked cluster member (again uncorrected) (phot.mag) (PHOT_MAG_UNDEF) |
| | | u_m10 | (char) | [:?*] same with u_m1 (meta.code.error) (CODE_ERROR) |
| | | Prev | (char) | [ BDdKOQRSs] sources of previous listings B = Braid and MacGillivray (1978MNRAS.182..241B), etc. see file "docu.txt" (meta.id) (ID_ALTERNATIVE) |
| | | 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) (POS_PLATE_X) |
| | | Ypos | mm | same with above (y coordinate) (pos.cartesian.y;instr.plate) (POS_PLATE_Y) |
| | | GLON | deg | galactic longitude l2 (pos.galactic.lon) (POS_GAL_LON) |
| | | GLAT | deg | galactic latitude b2 (pos.galactic.lat) (POS_GAL_LAT) |
| | | z | | (n) cluster redshift from Struble and Rood (1987ApJS...63..555S) (src.redshift) (REDSHIFT_HC) |
| | | u_z | (char) | [)] uncertainty parenthesis, close (meta.code.error;src.redshift) (CODE_ERROR) |
ALL cols | | | |
| | | Rich | | richness, from Abell (1958ApJS....3..211A) (Note)
(src.class.richness) (CLASS_RICHNESS) |
| | | Dclass | | distance class, from Abell (Note 1958)
(src.class.distance) (CLASS_DISTANCE) |
| | | m10A | mag | magnitude of the tenth brightest cluster member, corrected for galactic extinction following Abell's formula (phot.mag;arith.diff) (PHOT_MAG_CORR) |
| | | NF_1 | | [1,4] number of fields in which the cluster was found (meta.number) (NUMBER) |
| | | Obs_1 | (char) | [ACO] observer's initial (A = Abell, C = Corwin, O = Olowin) (obs.observer) (ID_HUMAN) |
| | | NF_2 | | (n) [1,4] same with NF_1 (meta.note) (ID_HUMAN) |
| | | Obs_2 | (char) | [ACO] same with Obs_1 (meta.note) (ID_HUMAN) |
| | | NF_3 | | (n) [1,4] same with NF_1 (meta.note) (ID_HUMAN) |
| | | Obs_3 | (char) | [ACO] same with Obs_1 (meta.note) (ID_HUMAN) |
| | | _RA.icrs | "h:m:s" | (n)(i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra) (POS_EQ_RA_OTHER) |
| | | _DE.icrs | "d:m:s" | (n)(i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec) (POS_EQ_DEC_OTHER) |
ALL cols | | | |