| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 49sig Oph |
| Skymap Number | 17260109 |
| Henry Draper (HD) Number | 157999 |
| Harvard Revised (HR) Number | 6498 |
| SAO Number | 122387 |
| Durchmusterung (DM) Number | BD+04 3422 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 164002 |
| Right Ascension (RA) J2000 | 17h 26m 30.880s |
| Declination (Dec) J2000 | +4° 8' 25.295" |
| Position Uncertainty | 0.0082s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00008 |
| Proper Motion in Dec (J2000) | +0.007166 |
| Radial Velocity | -027.1km s-1 |
| Trigonometric Parallax | +0.00278s |
| Trigonometric Parallax Uncertainty | 0.00092s |
| GCI Unit Vector in X (J2000) | -0.145208 |
| GCI Unit Vector in Y (J2000) | -0.986763 |
| GCI Unit Vector in Z (J2000) | 0.072200 |
| Galactic Longitude | 26.77° |
Galactic Latitude
| 20.75°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.32 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.81 |
| Observed B-V Colour | +1.489 |
| 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 | 4.4 |
| Observed Photographic Magnitude | |
| Morgan Keenan (MK) Spectral Type | K2II |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
