Identification Data |
Common Name | |
Constellation | Aquarius |
Star Name | 12 Aqr |
Skymap Number | 21040020 |
Henry Draper (HD) Number | 200496 |
Harvard Revised (HR) Number | 8058 |
SAO Number | 145064 |
Durchmusterung (DM) Number | SD-06 5664 |
Washington Double Stars (WDS) Number
| 21041-0549
|
Positional Data |
Position and Proper Motion (PPM) Number | 204770 |
Right Ascension (RA) J2000 | 21h 4m 4.682s |
Declination (Dec) J2000 | -5° 49' 25.394" |
Position Uncertainty | 0.0173s |
Proper Motion in RA (J2000)/cos(Dec) | +0.00140 |
Proper Motion in Dec (J2000) | -0.007067 |
Radial Velocity | +001.3km s-1 |
Trigonometric Parallax | +0.00603s |
Trigonometric Parallax Uncertainty | 0.00117s |
GCI Unit Vector in X (J2000) | 0.715862 |
GCI Unit Vector in Y (J2000) | -0.690829 |
GCI Unit Vector in Z (J2000) | -0.101468 |
Galactic Longitude | 43.67° |
Galactic Latitude
| -32.04°
|
Observational Data |
Observed Visual Magnitude (V) | 7.41 |
Derived Visual Magnitude | |
Derived Visual Magnitude or Observed Visual Magnitude Uncertainty | 0.050 |
Observed B Magnitude | 7.55 |
Observed B-V Colour | +0.14 |
Observed B Magnitude or (B-V) Magnitude Uncertainty | 0.050 |
Observed U Magnitude | 7.75 |
Observed U-B Colour | +0.20 |
Observed U Magnitude or (U-B) Magnitude Uncertainty | 0.050 |
Observed Photovisual Magnitude | 7.3 |
Observed Photographic Magnitude | 7.4 |
Morgan Keenan (MK) Spectral Type | A3V |
One-Dimensional Spectral Class | F5 |
Position Angle | 195 |
Year of Observation | 1991. AD |