Identification Data |
Common Name | Albaldah |
Constellation | Saggitarius |
Star Name | 41pi Sgr |
Skymap Number | 19090174 |
Henry Draper (HD) Number | 178524 |
Harvard Revised (HR) Number | 7264 |
SAO Number | 187756 |
Durchmusterung (DM) Number | SD-21 5275 |
Washington Double Stars (WDS) Number
| 19098-2101
|
Positional Data |
Position and Proper Motion (PPM) Number | 269391 |
Right Ascension (RA) J2000 | 19h 9m 45.833s |
Declination (Dec) J2000 | -21° 1' 25.013" |
Position Uncertainty | 0.0071s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00008 |
Proper Motion in Dec (J2000) | -0.036866 |
Radial Velocity | -009.8km s-1 |
Trigonometric Parallax | +0.00741s |
Trigonometric Parallax Uncertainty | 0.00069s |
GCI Unit Vector in X (J2000) | 0.279771 |
GCI Unit Vector in Y (J2000) | -0.890519 |
GCI Unit Vector in Z (J2000) | -0.358753 |
Galactic Longitude | 15.89° |
Galactic Latitude
| -13.29°
|
Observational Data |
Observed Visual Magnitude (V) | 2.90 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.002 |
Observed B Magnitude | 3.28 |
Observed B-V Colour | +0.377 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.003 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 3.0 |
Observed Photographic Magnitude | 3.4 |
Morgan Keenan (MK) Spectral Type | F2II |
One-Dimensional Spectral Class | F2 |
Position Angle | 179 |
Year of Observation | 1989. AD |