| Identification Data |
| Common Name | Yed Prior |
| Constellation | Ophiuchus |
| Star Name | 1del Oph |
| Skymap Number | 16140066 |
| Henry Draper (HD) Number | 146051 |
| Harvard Revised (HR) Number | 6056 |
| SAO Number | 141052 |
| Durchmusterung (DM) Number | SD-03 3903 |
Washington Double Stars (WDS) Number
| 16143-0342
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 199443 |
| Right Ascension (RA) J2000 | 16h 14m 20.739s |
| Declination (Dec) J2000 | -3° 41' 39.563" |
| Position Uncertainty | 0.0126s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00306 |
| Proper Motion in Dec (J2000) | -0.142966 |
| Radial Velocity | -019.8km s-1 |
| Trigonometric Parallax | +0.01916s |
| Trigonometric Parallax Uncertainty | 0.00102s |
| GCI Unit Vector in X (J2000) | -0.443923 |
| GCI Unit Vector in Y (J2000) | -0.893745 |
| GCI Unit Vector in Z (J2000) | -0.064433 |
| Galactic Longitude | 8.85° |
Galactic Latitude
| 32.20°
|
| Observational Data |
| Observed Visual Magnitude (V) | 2.73 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.31 |
| Observed B-V Colour | +1.581 |
| 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 | 3.0 |
| Observed Photographic Magnitude | 4.4 |
| Morgan Keenan (MK) Spectral Type | M0.5III |
| One-Dimensional Spectral Class | M0 |
| Position Angle | 294 |
| Year of Observation | 1908. AD |
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