| Identification Data |
| Common Name | |
| Constellation | Crux |
| Star Name | the2Cru |
| Skymap Number | 12040050 |
| Henry Draper (HD) Number | 104841 |
| Harvard Revised (HR) Number | 4603 |
| SAO Number | 251717 |
| Durchmusterung (DM) Number | CP-62 2561 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 359166 |
| Right Ascension (RA) J2000 | 12h 4m 19.215s |
| Declination (Dec) J2000 | -63° 9' 56.559" |
| Position Uncertainty | 0.0057s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00254 |
| Proper Motion in Dec (J2000) | 0.000066 |
| Radial Velocity | +016.3km s-1 |
| Trigonometric Parallax | +0.00433s |
| Trigonometric Parallax Uncertainty | 0.00053s |
| GCI Unit Vector in X (J2000) | -0.451331 |
| GCI Unit Vector in Y (J2000) | -0.008509 |
| GCI Unit Vector in Z (J2000) | -0.892316 |
| Galactic Longitude | 297.65° |
Galactic Latitude
| -0.78°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.73 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.63 |
| Observed B-V Colour | -0.096 |
| 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 | 5.0 |
| Observed Photographic Magnitude | 4.8 |
| Morgan Keenan (MK) Spectral Type | B2IV |
| One-Dimensional Spectral Class | B3 |
| Position Angle | |
| Year of Observation | AD |
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