Identification Data |
Common Name | |
Constellation | Centaurus |
Star Name | sig Cen |
Skymap Number | 12280007 |
Henry Draper (HD) Number | 108483 |
Harvard Revised (HR) Number | 4743 |
SAO Number | 223454 |
Durchmusterung (DM) Number | CD-49 7115 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 341006 |
Right Ascension (RA) J2000 | 12h 28m 2.382s |
Declination (Dec) J2000 | -50° 13' 50.286" |
Position Uncertainty | 0.0069s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00339 |
Proper Motion in Dec (J2000) | -0.012466 |
Radial Velocity | +008.0km s-1 |
Trigonometric Parallax | +0.00736s |
Trigonometric Parallax Uncertainty | 0.00067s |
GCI Unit Vector in X (J2000) | -0.634917 |
GCI Unit Vector in Y (J2000) | -0.078070 |
GCI Unit Vector in Z (J2000) | -0.768626 |
Galactic Longitude | 299.11° |
Galactic Latitude
| 12.47°
|
Observational Data |
Observed Visual Magnitude (V) | 3.91 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 3.73 |
Observed B-V Colour | -0.184 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 4.2 |
Observed Photographic Magnitude | 4.0 |
Morgan Keenan (MK) Spectral Type | B2V |
One-Dimensional Spectral Class | B3 |
Position Angle | |
Year of Observation | AD |