| Identification Data |
| Common Name | |
| Constellation | Saggitarius |
| Star Name | 40tau Sgr |
| Skymap Number | 19060214 |
| Henry Draper (HD) Number | 177716 |
| Harvard Revised (HR) Number | 7234 |
| SAO Number | 187683 |
| Durchmusterung (DM) Number | CD-2713564 |
Washington Double Stars (WDS) Number
|
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 269319 |
| Right Ascension (RA) J2000 | 19h 6m 56.408s |
| Declination (Dec) J2000 | -27° 40' 13.523" |
| Position Uncertainty | 0.0327s |
| Proper Motion in RA (J2000)/cos(Dec) | -0.00382 |
| Proper Motion in Dec (J2000) | -0.250566 |
| Radial Velocity | +045.4km s-1 |
| Trigonometric Parallax | +0.02709s |
| Trigonometric Parallax Uncertainty | 0.00148s |
| GCI Unit Vector in X (J2000) | 0.255015 |
| GCI Unit Vector in Y (J2000) | -0.848124 |
| GCI Unit Vector in Z (J2000) | -0.464385 |
| Galactic Longitude | 9.34° |
Galactic Latitude
| -15.37°
|
| Observational Data |
| Observed Visual Magnitude (V) | 3.32 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 4.50 |
| Observed B-V Colour | +1.179 |
| 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 | 3.4 |
| Observed Photographic Magnitude | 4.4 |
| Morgan Keenan (MK) Spectral Type | K1.5IIIb |
| One-Dimensional Spectral Class | K0 |
| Position Angle | |
| Year of Observation | AD |
