| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 30 Oph |
| Skymap Number | 17010009 |
| Henry Draper (HD) Number | 153687 |
| Harvard Revised (HR) Number | 6318 |
| SAO Number | 141483 |
| Durchmusterung (DM) Number | SD-04 4215 |
Washington Double Stars (WDS) Number
| 17011-0413
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 200261 |
| Right Ascension (RA) J2000 | 17h 1m 3.602s |
| Declination (Dec) J2000 | -4° 13' 21.517" |
| Position Uncertainty | 0.0087s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00269 |
| Proper Motion in Dec (J2000) | -0.077966 |
| Radial Velocity | -006.7km s-1 |
| Trigonometric Parallax | +0.00811s |
| Trigonometric Parallax Uncertainty | 0.00107s |
| GCI Unit Vector in X (J2000) | -0.253658 |
| GCI Unit Vector in Y (J2000) | -0.964487 |
| GCI Unit Vector in Z (J2000) | -0.073632 |
| Galactic Longitude | 15.58° |
Galactic Latitude
| 22.18°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.81 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 6.29 |
| Observed B-V Colour | +1.482 |
| 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 | 5.0 |
| Observed Photographic Magnitude | 6.0 |
| Morgan Keenan (MK) Spectral Type | K4III |
| One-Dimensional Spectral Class | K0 |
| Position Angle | 69 |
| Year of Observation | 1923. AD |
