| 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 |
