| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 7chi Oph |
| Skymap Number | 16270002 |
| Henry Draper (HD) Number | 148184 |
| Harvard Revised (HR) Number | 6118 |
| SAO Number | 159918 |
| Durchmusterung (DM) Number | SD-18 4282 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 231703 |
| Right Ascension (RA) J2000 | 16h 27m 1.434s |
| Declination (Dec) J2000 | -18° 27' 22.504" |
| Position Uncertainty | 0.0099s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00039 |
| Proper Motion in Dec (J2000) | -0.022266 |
| Radial Velocity | -019.4km s-1 |
| Trigonometric Parallax | +0.00667s |
| Trigonometric Parallax Uncertainty | 0.00074s |
| GCI Unit Vector in X (J2000) | -0.374350 |
| GCI Unit Vector in Y (J2000) | -0.871573 |
| GCI Unit Vector in Z (J2000) | -0.316580 |
| Galactic Longitude | 357.94° |
Galactic Latitude
| 20.68°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.26 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
| Observed B Magnitude | 4.47 |
| Observed B-V Colour | +0.213 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.010 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.1 |
| Observed Photographic Magnitude | 4.7 |
| Morgan Keenan (MK) Spectral Type | B2IV:pe |
| One-Dimensional Spectral Class | B3 |
| Position Angle | |
| Year of Observation | AD |
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