| Identification Data |
| Common Name | |
| Constellation | Columba |
| Star Name | eta Col |
| Skymap Number | 5590022 |
| Henry Draper (HD) Number | 40808 |
| Harvard Revised (HR) Number | 2120 |
| SAO Number | 217650 |
| Durchmusterung (DM) Number | CD-42 2266 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 310277 |
| Right Ascension (RA) J2000 | 5h 59m 8.805s |
| Declination (Dec) J2000 | -42° 48' 54.488" |
| Position Uncertainty | 0.0060s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00168 |
| Proper Motion in Dec (J2000) | -0.011566 |
| Radial Velocity | +017.0km s-1 |
| Trigonometric Parallax | +0.00614s |
| Trigonometric Parallax Uncertainty | 0.00052s |
| GCI Unit Vector in X (J2000) | 0.002731 |
| GCI Unit Vector in Y (J2000) | 0.733545 |
| GCI Unit Vector in Z (J2000) | -0.679635 |
| Galactic Longitude | 249.46° |
Galactic Latitude
| -27.23°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.94 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.08 |
| Observed B-V Colour | +1.144 |
| 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 | 4.0 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K0III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
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