| Identification Data |
| Common Name | |
| Constellation | Crux |
| Star Name | alp2Cru |
| Skymap Number | 12260152 |
| Henry Draper (HD) Number | 108249 |
| Harvard Revised (HR) Number | 4731 |
| SAO Number | |
| Durchmusterung (DM) Number | CP-62 2745 |
Washington Double Stars (WDS) Number
| 12266-6306
|
| Positional Data |
| Position and Proper Motion (PPM) Number | |
| Right Ascension (RA) J2000 | 12h 26m 36.442s |
| Declination (Dec) J2000 | -63° 5' 58.283" |
| Position Uncertainty | 0.0131s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00627 |
| Proper Motion in Dec (J2000) | -0.007767 |
| Radial Velocity | -011.2km s-1 |
| Trigonometric Parallax | +0.01017s |
| Trigonometric Parallax Uncertainty | 0.00067s |
| GCI Unit Vector in X (J2000) | -0.449396 |
| GCI Unit Vector in Y (J2000) | -0.052409 |
| GCI Unit Vector in Z (J2000) | -0.891794 |
| Galactic Longitude | 300.13° |
Galactic Latitude
| -0.36°
|
| Observational Data |
| Observed Visual Magnitude (V) | 1.58 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.016 |
| Observed B Magnitude | 1.42 |
| Observed B-V Colour | -0.159 |
| 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 | 1.8 |
| Observed Photographic Magnitude | 1.9 |
| Morgan Keenan (MK) Spectral Type | B1V |
| One-Dimensional Spectral Class | |
| Position Angle | 112 |
| Year of Observation | 1994. AD |
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