| I/247/ac2000 | The AC2000 Catalogue (Urban+ 1997) full AC J2000 catalog, split here into 14 files. (4621836 rows) | recno=2061599 |
Note: Detailed information can be found in intro.tex (see also http://aries.usno.navy.mil/ad/ac.html) Direct links to Hipparcos and Tycho observations are provided from the relevant columns.
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 00 59 35.58400 | "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 | -01 19 35.0500 | "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 57 02.24687 | "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 | -01 35 44.8609 | "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 | 127.60644404 | 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 | -64.12410858 | 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) |
| 2061599recno | 2061599 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
| RA(ICRS) | 00 59 35.584 | "h:m:s" | (i) Right Ascension (ICRS) at Epoch (hours) (pos.eq.ra;meta.main) |
| DE(ICRS) | -01 19 35.05 | "d:m:s" | (i) Declination (ICRS) at Epoch (degrees) (pos.eq.dec;meta.main) |
| Bmag | 9.21 | mag | Magnitude from image diameters (phot.mag;em.opt.B) |
| Epoch | 1896.436 | yr | Mean epoch of position (time.epoch) |
| Num | 2 | Number of images used (meta.number) | |
| e_RAs | 0.330 | arcsec | Standard deviation of mean, RA (stat.error) |
| e_DEs | 0.031 | arcsec | Standard deviation of mean, Dec (stat.error) |
| AC2000 | 4665 | (i) AC 2000 Number (meta.id;meta.main) | |
| HIP | (i) Hipparcos Number (Cat. I/239) (meta.id) | ||
| TYC | 467400075301 | Tycho ID (Cat. I/239) (Note) (meta.id) | |
| ACRS | 1008717 | ACRS number (Cat. I/171) (meta.id) | |
| Vflag | [1] Verification Flag (Note) (meta.note) | ||
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