| Identification Data |
| Common Name | Yed Posterior |
| Constellation | Ophiuchus |
| Star Name | 2eps Oph |
| Skymap Number | 16180055 |
| Henry Draper (HD) Number | 146791 |
| Harvard Revised (HR) Number | 6075 |
| SAO Number | 141086 |
| Durchmusterung (DM) Number | SD-04 4086 |
Washington Double Stars (WDS) Number
| 16183-0442
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 199508 |
| Right Ascension (RA) J2000 | 16h 18m 19.289s |
| Declination (Dec) J2000 | -4° 41' 33.038" |
| Position Uncertainty | 0.0098s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00551 |
| Proper Motion in Dec (J2000) | +0.040166 |
| Radial Velocity | -010.3km s-1 |
| Trigonometric Parallax | +0.03034s |
| Trigonometric Parallax Uncertainty | 0.00079s |
| GCI Unit Vector in X (J2000) | -0.427806 |
| GCI Unit Vector in Y (J2000) | -0.900161 |
| GCI Unit Vector in Z (J2000) | -0.081808 |
| Galactic Longitude | 8.57° |
Galactic Latitude
| 30.81°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.24 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.004 |
| Observed B Magnitude | 4.21 |
| Observed B-V Colour | +0.969 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.005 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 3.3 |
| Observed Photographic Magnitude | 4.3 |
| Morgan Keenan (MK) Spectral Type | G9.5IIIbFe-0.5 |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 246 |
| Year of Observation | 1922. AD |
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