| Identification Data |
| Common Name | |
| Constellation | Saggitarius |
| Star Name | 42psi Sgr |
| Skymap Number | 19150108 |
| Henry Draper (HD) Number | 179950 |
| Harvard Revised (HR) Number | 7292 |
| SAO Number | 187882 |
| Durchmusterung (DM) Number | CD-2513866 |
Washington Double Stars (WDS) Number
| 19155-2515
|
| Positional Data |
| Position and Proper Motion (PPM) Number | 269531 |
| Right Ascension (RA) J2000 | 19h 15m 32.427s |
| Declination (Dec) J2000 | -25° 15' 24.057" |
| Position Uncertainty | 0.0262s |
| Proper Motion in RA (J2000)/cos(Dec) | +0.00351 |
| Proper Motion in Dec (J2000) | -0.031266 |
| Radial Velocity | -033.0km s-1 |
| Trigonometric Parallax | +0.00989s |
| Trigonometric Parallax Uncertainty | 0.00112s |
| GCI Unit Vector in X (J2000) | 0.292730 |
| GCI Unit Vector in Y (J2000) | -0.855721 |
| GCI Unit Vector in Z (J2000) | -0.426674 |
| Galactic Longitude | 12.43° |
Galactic Latitude
| -16.20°
|
| Observational Data |
| Observed Visual Magnitude (V) | 4.87 |
| Derived Visual Magnitude | |
| Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.003 |
| Observed B Magnitude | 5.43 |
| Observed B-V Colour | +0.564 |
| Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.004 |
| Observed U Magnitude | |
| Observed U-B Colour | |
| Observed U Magnitude or (U-B) Magnitude Uncertainty | |
| Observed Photovisual Magnitude | 4.2 |
| Observed Photographic Magnitude | 5.4 |
| Morgan Keenan (MK) Spectral Type | G8:III+A8V |
| One-Dimensional Spectral Class | F5 |
| Position Angle | |
| Year of Observation | 1991. AD |
