| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 23 Oph |
| Skymap Number | 16540137 |
| Henry Draper (HD) Number | 152601 |
| Harvard Revised (HR) Number | 6280 |
| SAO Number | 141431 |
| Durchmusterung (DM) Number | SD-05 4374 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 200147 |
| Right Ascension (RA) J2000 | 16h 54m 35.693s |
| Declination (Dec) J2000 | -6° 9' 14.336" |
| Position Uncertainty | 0.0091s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00203 |
| Proper Motion in Dec (J2000) | -0.021966 |
| Radial Velocity | -017.2km s-1 |
| Trigonometric Parallax | +0.01314s |
| Trigonometric Parallax Uncertainty | 0.00077s |
| GCI Unit Vector in X (J2000) | -0.279903 |
| GCI Unit Vector in Y (J2000) | -0.954024 |
| GCI Unit Vector in Z (J2000) | -0.107201 |
| Galactic Longitude | 12.89° |
Galactic Latitude
| 22.52°
|
| Observational Data |
| Observed Visual Magnitude (V) | 5.23 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 6.33 |
| Observed B-V Colour | +1.098 |
| 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 | 5.4 |
| Observed Photographic Magnitude | 6.4 |
| Morgan Keenan (MK) Spectral Type | K2III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
