| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 27kap Oph |
| Skymap Number | 16570115 |
| Henry Draper (HD) Number | 153210 |
| Harvard Revised (HR) Number | 6299 |
| SAO Number | 121962 |
| Durchmusterung (DM) Number | BD+09 3298 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 163313 |
| Right Ascension (RA) J2000 | 16h 57m 40.097s |
| Declination (Dec) J2000 | +9° 22' 30.118" |
| Position Uncertainty | 0.0066s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.01980 |
| Proper Motion in Dec (J2000) | -0.009766 |
| Radial Velocity | -056.5km s-1 |
| Trigonometric Parallax | +0.03799s |
| Trigonometric Parallax Uncertainty | 0.00075s |
| GCI Unit Vector in X (J2000) | -0.265045 |
| GCI Unit Vector in Y (J2000) | -0.950377 |
| GCI Unit Vector in Z (J2000) | 0.162896 |
| Galactic Longitude | 28.37° |
Galactic Latitude
| 29.50°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.19 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
| Observed B Magnitude | 4.35 |
| Observed B-V Colour | +1.158 |
| 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 | 3.4 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K2III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
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