| VII/87A/catalog | Data on 1889 Abell's clusters of galaxies (Leir+ 1977) Table 1 of the paper, cols 1,6,7,9-11 (1889 rows) | recno=17 |
Note: Due to the very poor printing of the original catalog, several errors may exist in this electronic table; some were detected, but no systematic proofreading was performed
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 00 20 30.8 | "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 | +28 37 39 | "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) |
| _RAB1950 | 00 17 54.0 | "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 | +28 21 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) |
| _Glon | 114.7672 | 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 | -33.7536 | 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) |
| 17recno | 17 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
| Abell | 21 | Abell cluster number (meta.id;meta.main) | |
| BMclass | 1.0 | [1/3] Bautz-Morgan class (Note 1) (src.class.struct) | |
| u_BMclass | : | Uncertainty symbol (:) on BMclass (meta.code.error) | |
| Radius | 16 | mm | Apparent cluster radius on the red plate of the Palomar Sky Survey (Note 2) (phys.angSize;src) |
| Gmaj | 0.50 | mm | Apparent major axis of the brightest cluster member (Note 2) (phys.angSize;src) |
| Gmin | 0.20 | mm | Apparent minor axis of the brightest cluster member (Note 2) (phys.angSize;src) |
| rmag | 14.4 | mag | Photo-red magnitude of the brightest cluster member corrected for absorption. (phot.mag;em.opt.R) |
| Simbad | Simbad | ask the Simbad data-base about this object | |
| NED | NED | ask the NED data-base about this object | |
| _RA | 005.13 | deg | (i) Position (from Abell's catalog, 1989 version, Cat. VII/87) (right ascension part) (pos.eq.ra;meta.main) |
| _DE | +28.63 | deg | (i) Position (from Abell's catalog, 1989 version, Cat. VII/87) (declination part) (pos.eq.dec;meta.main) |
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