| Identification Data |
| Common Name | |
| Constellation | Centaurus |
| Star Name | 1 Cen |
| Skymap Number | 13450111 |
| Henry Draper (HD) Number | 119756 |
| Harvard Revised (HR) Number | 5168 |
| SAO Number | 204812 |
| Durchmusterung (DM) Number | CD-32 9603 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 291783 |
| Right Ascension (RA) J2000 | 13h 45m 41.245s |
| Declination (Dec) J2000 | -33° 2' 37.397" |
| Position Uncertainty | 0.0081s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.03673 |
| Proper Motion in Dec (J2000) | -0.146266 |
| Radial Velocity | -021.8km s-1 |
| Trigonometric Parallax | +0.05191s |
| Trigonometric Parallax Uncertainty | 0.00075s |
| GCI Unit Vector in X (J2000) | -0.750692 |
| GCI Unit Vector in Y (J2000) | -0.373004 |
| GCI Unit Vector in Z (J2000) | -0.545279 |
| Galactic Longitude | 315.87° |
Galactic Latitude
| 28.46°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.23 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.61 |
| Observed B-V Colour | +0.382 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.4 |
| Observed Photographic Magnitude | 4.8 |
| Morgan Keenan (MK) Spectral Type | F3IV |
| One-Dimensional Spectral Class | F5 |
| Position Angle | |
| Year of Observation | AD |
