| Identification Data |
| Common Name | |
| Constellation | Scorpius |
| Star Name | eta Sco |
| Skymap Number | 17120023 |
| Henry Draper (HD) Number | 155203 |
| Harvard Revised (HR) Number | 6380 |
| SAO Number | 227707 |
| Durchmusterung (DM) Number | CD-4311485 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 322687 |
| Right Ascension (RA) J2000 | 17h 12m 9.193s |
| Declination (Dec) J2000 | -43° 14' 21.080" |
| Position Uncertainty | 0.0080s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00201 |
| Proper Motion in Dec (J2000) | -0.287466 |
| Radial Velocity | -027.0km s-1 |
| Trigonometric Parallax | +0.04556s |
| Trigonometric Parallax Uncertainty | 0.00079s |
| GCI Unit Vector in X (J2000) | -0.150987 |
| GCI Unit Vector in Y (J2000) | -0.712682 |
| GCI Unit Vector in Z (J2000) | -0.685046 |
| Galactic Longitude | 344.37° |
Galactic Latitude
| -2.30°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.32 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 3.75 |
| Observed B-V Colour | +0.426 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.4 |
| Observed Photographic Magnitude | 3.8 |
| Morgan Keenan (MK) Spectral Type | F3III-IVp |
| One-Dimensional Spectral Class | F2 |
| Position Angle | |
| Year of Observation | AD |
