| Identification Data |
| Common Name | |
| Constellation | Ophiuchus |
| Star Name | 69tau Oph |
| Skymap Number | 18030207 |
| Henry Draper (HD) Number | 164765 |
| Harvard Revised (HR) Number | 6734 |
| SAO Number | 142050 |
| Durchmusterung (DM) Number | SD-08 4549 |
Washington Double Stars (WDS) Number
| 18031-0811
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 201336 |
| Right Ascension (RA) J2000 | 18h 3m 4.919s |
| Declination (Dec) J2000 | -8° 10' 49.257" |
| Position Uncertainty | 0.0102s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00102 |
| Proper Motion in Dec (J2000) | -0.037667 |
| Radial Velocity | -039.9km s-1 |
| Trigonometric Parallax | +0.01922s |
| Trigonometric Parallax Uncertainty | 0.00097s |
| GCI Unit Vector in X (J2000) | 0.013311 |
| GCI Unit Vector in Y (J2000) | -0.989736 |
| GCI Unit Vector in Z (J2000) | -0.142289 |
| Galactic Longitude | 20.07° |
Galactic Latitude
| 6.87°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.77 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | |
| Observed B Magnitude | 5.18 |
| Observed B-V Colour | +0.410 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.014 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 5.3 |
| Observed Photographic Magnitude | 5.6 |
| Morgan Keenan (MK) Spectral Type | F2V |
| One-Dimensional Spectral Class | F0 |
| Position Angle | 281 |
| Year of Observation | 1994. AD |
Printer Version