| Identification Data |
| Common Name | |
| Constellation | Crux |
| Star Name | the1Cru |
| Skymap Number | 12030011 |
| Henry Draper (HD) Number | 104671 |
| Harvard Revised (HR) Number | 4599 |
| SAO Number | 251705 |
| Durchmusterung (DM) Number | CP-62 2543 |
Washington Double Stars (WDS) Number
| 12030-6319
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 359149 |
| Right Ascension (RA) J2000 | 12h 3m 1.501s |
| Declination (Dec) J2000 | -63° 18' 46.548" |
| Position Uncertainty | 0.0059s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.02264 |
| Proper Motion in Dec (J2000) | +0.006166 |
| Radial Velocity | -002.4km s-1 |
| Trigonometric Parallax | +0.01419s |
| Trigonometric Parallax Uncertainty | 0.00054s |
| GCI Unit Vector in X (J2000) | -0.449078 |
| GCI Unit Vector in Y (J2000) | -0.005928 |
| GCI Unit Vector in Z (J2000) | -0.893473 |
| Galactic Longitude | 297.53° |
Galactic Latitude
| -0.95°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.33 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.60 |
| Observed B-V Colour | +0.266 |
| 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 | 4.3 |
| Observed Photographic Magnitude | 4.6 |
| Morgan Keenan (MK) Spectral Type | |
| One-Dimensional Spectral Class | Am |
| Position Angle | 325 |
| Year of Observation | 1921. AD |
