| Identification Data |
| Common Name | |
| Constellation | Tucana |
| Star Name | eta Tuc |
| Skymap Number | 23570102 |
| Henry Draper (HD) Number | 224392 |
| Harvard Revised (HR) Number | 9062 |
| SAO Number | 255609 |
| Durchmusterung (DM) Number | CP-64 4391 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 366716 |
| Right Ascension (RA) J2000 | 23h 57m 35.077s |
| Declination (Dec) J2000 | -64° 17' 53.632" |
| Position Uncertainty | 0.0056s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.01212 |
| Proper Motion in Dec (J2000) | -0.061166 |
| Radial Velocity | +032.5km s-1 |
| Trigonometric Parallax | +0.02053s |
| Trigonometric Parallax Uncertainty | 0.00051s |
| GCI Unit Vector in X (J2000) | 0.433663 |
| GCI Unit Vector in Y (J2000) | -0.004571 |
| GCI Unit Vector in Z (J2000) | -0.901064 |
| Galactic Longitude | 312.34° |
Galactic Latitude
| -51.84°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.00 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.06 |
| Observed B-V Colour | +0.055 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.002 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.1 |
| Observed Photographic Magnitude | 5.2 |
| Morgan Keenan (MK) Spectral Type | A1V |
| One-Dimensional Spectral Class | A2 |
| Position Angle | |
| Year of Observation | AD |
