| Identification Data |
| Common Name | Antares |
| Constellation | Scorpius |
| Star Name | 21alp Sco |
| Skymap Number | 16290068 |
| Henry Draper (HD) Number | 148478 |
| Harvard Revised (HR) Number | 6134 |
| SAO Number | 184415 |
| Durchmusterung (DM) Number | CD-2611359 |
Washington Double Stars (WDS) Number
| 16294-2626
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 265579 |
| Right Ascension (RA) J2000 | 16h 29m 24.460s |
| Declination (Dec) J2000 | -26° 25' 55.209" |
| Position Uncertainty | 0.0211s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00076 |
| Proper Motion in Dec (J2000) | -0.023266 |
| Radial Velocity | -003.km s-1 |
| Trigonometric Parallax | +0.00540s |
| Trigonometric Parallax Uncertainty | 0.00168s |
| GCI Unit Vector in X (J2000) | -0.344816 |
| GCI Unit Vector in Y (J2000) | -0.826412 |
| GCI Unit Vector in Z (J2000) | -0.445135 |
| Galactic Longitude | 351.95° |
Galactic Latitude
| 15.06°
|
| Observational Data |
| Observed Visual Magnitude (V) | 1.07 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.008 |
| Observed B Magnitude | 2.91 |
| Observed B-V Colour | +1.844 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.014 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 1.2 |
| Observed Photographic Magnitude | 2.6 |
| Morgan Keenan (MK) Spectral Type | M1.5Iab+B2.5V |
| One-Dimensional Spectral Class | M1 |
| Position Angle | 273 |
| Year of Observation | 1989. AD |
