| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 57mu Oph |
| Skymap Number | 17370178 |
| Henry Draper (HD) Number | 159975 |
| Harvard Revised (HR) Number | 6567 |
| SAO Number | 141772 |
| Durchmusterung (DM) Number | SD-08 4472 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 200882 |
| Right Ascension (RA) J2000 | 17h 37m 50.712s |
| Declination (Dec) J2000 | -8° 7' 7.575" |
| Position Uncertainty | 0.0077s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00079 |
| Proper Motion in Dec (J2000) | -0.020466 |
| Radial Velocity | -018.5km s-1 |
| Trigonometric Parallax | +0.00594s |
| Trigonometric Parallax Uncertainty | 0.00081s |
| GCI Unit Vector in X (J2000) | -0.095551 |
| GCI Unit Vector in Y (J2000) | -0.985355 |
| GCI Unit Vector in Z (J2000) | -0.141226 |
| Galactic Longitude | 17.00° |
Galactic Latitude
| 12.34°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.62 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.72 |
| Observed B-V Colour | +0.095 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.3 |
| Observed Photographic Magnitude | 4.6 |
| Morgan Keenan (MK) Spectral Type | B8II-IIIp:Mn |
| One-Dimensional Spectral Class | B8 |
| Position Angle | |
| Year of Observation | AD |
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