Identification Data |
Common Name | |
Constellation | Aquarius |
Star Name | 20 Aqr |
Skymap Number | 21240183 |
Henry Draper (HD) Number | 203843 |
Harvard Revised (HR) Number | 8192 |
SAO Number | 145376 |
Durchmusterung (DM) Number | SD-04 5444 |
Washington Double Stars (WDS) Number
|
|
Positional Data |
Position and Proper Motion (PPM) Number | 205165 |
Right Ascension (RA) J2000 | 21h 24m 51.675s |
Declination (Dec) J2000 | -3° 23' 54.086" |
Position Uncertainty | 0.0110s |
Proper Motion in RA (J2000)/cos(Dec) | -0.00044 |
Proper Motion in Dec (J2000) | -0.050366 |
Radial Velocity | -023.2km s-1 |
Trigonometric Parallax | +0.01403s |
Trigonometric Parallax Uncertainty | 0.00089s |
GCI Unit Vector in X (J2000) | 0.778135 |
GCI Unit Vector in Y (J2000) | -0.625294 |
GCI Unit Vector in Z (J2000) | -0.059278 |
Galactic Longitude | 49.30° |
Galactic Latitude
| -35.33°
|
Observational Data |
Observed Visual Magnitude (V) | 6.39 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.006 |
Observed B Magnitude | 6.73 |
Observed B-V Colour | +0.337 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.008 |
Observed U Magnitude | |
Observed U-B Colour | |
Observed U Magnitude or (U-B) Magnitude Uncertainty | |
Observed Photovisual Magnitude | 6.8 |
Observed Photographic Magnitude | 6.7 |
Morgan Keenan (MK) Spectral Type | F0III |
One-Dimensional Spectral Class | F0 |
Position Angle | |
Year of Observation | AD |