| I/220/out | The HST Guide Star Catalog, Version 1.1 (Lasker+ 1992) The Full Catalogue (25258765 positions) (25258765 rows) | GSC=0644700352 |
Note: The Guide Star Catalog has been constructed to support the operational need of the Hubble Space Telescope; it is primarily based on an all-sky, single epoch, single passband collection of Schmidt plates. It contains over 25 million positions for about 19 million objects, of which more than 15 million are classified as stars.
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 03 41 14.8032 | "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 | -23 50 13.380 | "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 | 03 39 05.3339 | "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 | -23 59 47.653 | "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 | 217.7400549 | 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 | -51.7146143 | 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) |
| GSC | 0644700352 | (i) GSC designation (Note) (meta.id;meta.main) | |
| RAJ2000 | 55.31168 | deg | (i) Right ascention in J2000, epoch of plate (pos.eq.ra;meta.main) |
| DEJ2000 | -23.83705 | deg | (i) Declination in J2000, epoch of plate (pos.eq.dec;meta.main) |
| PosErr | 0.3 | arcsec | Mean error on position (stat.error) |
| Pmag | 9.54 | mag | (i) photographic magnitude (see n_Pmag) (phot.mag;em.opt) |
| e_Pmag | 0.29 | mag | Mean error on photographic magnitude (stat.error) |
| n_Pmag | 0 | [0,18] Coded passband for magnitude (Note) (meta.note) | |
| Class | 3 | [0,3] Class of object (0=star; 3=non-stellar) (src.class) | |
| Plate | 027X | Plate designation (obs.field) | |
| Epoch | 1977.725 | yr | Epoch of plate (time.epoch) |
| Mult | F | [TF] True if multiple object / False otherwise (meta.code.multip) | |
| Versions | GSC-all | Get parameters of that star from all GSC versions (meta.ref) | |
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