| Identification Data |
| Common Name | |
| Constellation | Centaurus |
| Star Name | 2 Cen |
| Skymap Number | 13490067 |
| Henry Draper (HD) Number | 120323 |
| Harvard Revised (HR) Number | 5192 |
| SAO Number | 204875 |
| Durchmusterung (DM) Number | CD-33 9358 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 291859 |
| Right Ascension (RA) J2000 | 13h 49m 26.721s |
| Declination (Dec) J2000 | -34° 27' 2.793" |
| Position Uncertainty | 0.0096s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00344 |
| Proper Motion in Dec (J2000) | -0.059966 |
| Radial Velocity | +040.7km s-1 |
| Trigonometric Parallax | +0.01839s |
| Trigonometric Parallax Uncertainty | 0.00074s |
| GCI Unit Vector in X (J2000) | -0.732360 |
| GCI Unit Vector in Y (J2000) | -0.378992 |
| GCI Unit Vector in Z (J2000) | -0.565698 |
| Galactic Longitude | 316.33° |
Galactic Latitude
| 26.91°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.29 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.007 |
| Observed B Magnitude | 5.62 |
| Observed B-V Colour | +1.332 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.008 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.4 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | M4.5III |
| One-Dimensional Spectral Class | M0 |
| Position Angle | |
| Year of Observation | AD |
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