| Identification Data |
| Common Name | |
| Constellation | Ara |
| Star Name | eta Ara |
| Skymap Number | 16490140 |
| Henry Draper (HD) Number | 151249 |
| Harvard Revised (HR) Number | 6229 |
| SAO Number | 244168 |
| Durchmusterung (DM) Number | CP-58 6906 |
Washington Double Stars (WDS) Number
| 16498-5902
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 345419 |
| Right Ascension (RA) J2000 | 16h 49m 47.156s |
| Declination (Dec) J2000 | -59° 2' 28.961" |
| Position Uncertainty | 0.0055s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00513 |
| Proper Motion in Dec (J2000) | -0.025366 |
| Radial Velocity | +009.0km s-1 |
| Trigonometric Parallax | +0.01041s |
| Trigonometric Parallax Uncertainty | 0.00069s |
| GCI Unit Vector in X (J2000) | -0.155147 |
| GCI Unit Vector in Y (J2000) | -0.490465 |
| GCI Unit Vector in Z (J2000) | -0.857539 |
| Galactic Longitude | 329.64° |
Galactic Latitude
| -9.16°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.76 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 5.32 |
| Observed B-V Colour | +1.565 |
| 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 | 3.7 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K5III |
| One-Dimensional Spectral Class | K5 |
| Position Angle | 120 |
| Year of Observation | 1967. AD |
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