Identification Data |
Common Name | Acrux |
Constellation | Crux |
Star Name | alp1Cru |
Skymap Number | 12260079 |
Henry Draper (HD) Number | 108248 |
Harvard Revised (HR) Number | 4730 |
SAO Number | 251904 |
Durchmusterung (DM) Number | CP-62 2745 |
Washington Double Stars (WDS) Number
| 12266-6306
|
Positional Data |
Position and Proper Motion (PPM) Number | 359410 |
Right Ascension (RA) J2000 | 12h 26m 35.895s |
Declination (Dec) J2000 | -63° 5' 56.730" |
Position Uncertainty | 0.0077s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00521 |
Proper Motion in Dec (J2000) | -0.014767 |
Radial Velocity | -011.2km s-1 |
Trigonometric Parallax | +0.01017s |
Trigonometric Parallax Uncertainty | 0.00067s |
GCI Unit Vector in X (J2000) | -0.449405 |
GCI Unit Vector in Y (J2000) | -0.052392 |
GCI Unit Vector in Z (J2000) | -0.891790 |
Galactic Longitude | 300.13° |
Galactic Latitude
| -0.36°
|
Observational Data |
Observed Visual Magnitude (V) | 1.28 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.013 |
Observed B Magnitude | 1.11 |
Observed B-V Colour | -0.169 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.018 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 1.3 |
Observed Photographic Magnitude | 1.4 |
Morgan Keenan (MK) Spectral Type | B0.5IV |
One-Dimensional Spectral Class | B1 |
Position Angle | 112 |
Year of Observation | 1994. AD |