| Identification Data |
| Common Name | |
| Constellation | Tucana |
| Star Name | alp Tuc |
| Skymap Number | 22180097 |
| Henry Draper (HD) Number | 211416 |
| Harvard Revised (HR) Number | 8502 |
| SAO Number | 255193 |
| Durchmusterung (DM) Number | CP-60 7561 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 365714 |
| Right Ascension (RA) J2000 | 22h 18m 30.094s |
| Declination (Dec) J2000 | -60° 15' 34.515" |
| Position Uncertainty | 0.0186s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00961 |
| Proper Motion in Dec (J2000) | -0.038266 |
| Radial Velocity | +042.2km s-1 |
| Trigonometric Parallax | +0.01642s |
| Trigonometric Parallax Uncertainty | 0.00059s |
| GCI Unit Vector in X (J2000) | 0.448213 |
| GCI Unit Vector in Y (J2000) | -0.212584 |
| GCI Unit Vector in Z (J2000) | -0.868282 |
| Galactic Longitude | 330.22° |
Galactic Latitude
| -47.96°
|
| Observational Data |
| Observed Visual Magnitude (V) | 2.86 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.25 |
| Observed B-V Colour | +1.393 |
| 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 | 2.9 |
| Observed Photographic Magnitude | 4.0 |
| Morgan Keenan (MK) Spectral Type | K3III |
| One-Dimensional Spectral Class | K2 |
| Position Angle | |
| Year of Observation | AD |
