Identification Data |
Common Name | |
Constellation | Centaurus |
Star Name | xi 2Cen |
Skymap Number | 13060139 |
Henry Draper (HD) Number | 113791 |
Harvard Revised (HR) Number | 4942 |
SAO Number | 223909 |
Durchmusterung (DM) Number | CD-49 7644 |
Washington Double Stars (WDS) Number
| 13069-4954
|
Positional Data |
Position and Proper Motion (PPM) Number | 318144 |
Right Ascension (RA) J2000 | 13h 6m 54.639s |
Declination (Dec) J2000 | -49° 54' 22.486" |
Position Uncertainty | 0.0078s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00272 |
Proper Motion in Dec (J2000) | -0.012466 |
Radial Velocity | +014.3km s-1 |
Trigonometric Parallax | +0.00792s |
Trigonometric Parallax Uncertainty | 0.00081s |
GCI Unit Vector in X (J2000) | -0.616787 |
GCI Unit Vector in Y (J2000) | -0.185370 |
GCI Unit Vector in Z (J2000) | -0.764992 |
Galactic Longitude | 305.49° |
Galactic Latitude
| 12.89°
|
Observational Data |
Observed Visual Magnitude (V) | 4.28 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 4.09 |
Observed B-V Colour | -0.186 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.4 |
Observed Photographic Magnitude | 4.2 |
Morgan Keenan (MK) Spectral Type | B1.5V |
One-Dimensional Spectral Class | B3 |
Position Angle | 100 |
Year of Observation | 1933. AD |